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  • Anti-Forgery Request Recipes For ASP.NET MVC And AJAX

    - by Dixin
    Background To secure websites from cross-site request forgery (CSRF, or XSRF) attack, ASP.NET MVC provides an excellent mechanism: The server prints tokens to cookie and inside the form; When the form is submitted to server, token in cookie and token inside the form are sent in the HTTP request; Server validates the tokens. To print tokens to browser, just invoke HtmlHelper.AntiForgeryToken():<% using (Html.BeginForm()) { %> <%: this.Html.AntiForgeryToken(Constants.AntiForgeryTokenSalt)%> <%-- Other fields. --%> <input type="submit" value="Submit" /> <% } %> This invocation generates a token then writes inside the form:<form action="..." method="post"> <input name="__RequestVerificationToken" type="hidden" value="J56khgCvbE3bVcsCSZkNVuH9Cclm9SSIT/ywruFsXEgmV8CL2eW5C/gGsQUf/YuP" /> <!-- Other fields. --> <input type="submit" value="Submit" /> </form> and also writes into the cookie: __RequestVerificationToken_Lw__= J56khgCvbE3bVcsCSZkNVuH9Cclm9SSIT/ywruFsXEgmV8CL2eW5C/gGsQUf/YuP When the above form is submitted, they are both sent to server. In the server side, [ValidateAntiForgeryToken] attribute is used to specify the controllers or actions to validate them:[HttpPost] [ValidateAntiForgeryToken(Salt = Constants.AntiForgeryTokenSalt)] public ActionResult Action(/* ... */) { // ... } This is very productive for form scenarios. But recently, when resolving security vulnerabilities for Web products, some problems are encountered. Specify validation on controller (not on each action) The server side problem is, It is expected to declare [ValidateAntiForgeryToken] on controller, but actually it has be to declared on each POST actions. Because POST actions are usually much more then controllers, the work would be a little crazy. Problem Usually a controller contains actions for HTTP GET and actions for HTTP POST requests, and usually validations are expected for HTTP POST requests. So, if the [ValidateAntiForgeryToken] is declared on the controller, the HTTP GET requests become invalid:[ValidateAntiForgeryToken(Salt = Constants.AntiForgeryTokenSalt)] public class SomeController : Controller // One [ValidateAntiForgeryToken] attribute. { [HttpGet] public ActionResult Index() // Index() cannot work. { // ... } [HttpPost] public ActionResult PostAction1(/* ... */) { // ... } [HttpPost] public ActionResult PostAction2(/* ... */) { // ... } // ... } If browser sends an HTTP GET request by clicking a link: http://Site/Some/Index, validation definitely fails, because no token is provided. So the result is, [ValidateAntiForgeryToken] attribute must be distributed to each POST action:public class SomeController : Controller // Many [ValidateAntiForgeryToken] attributes. { [HttpGet] public ActionResult Index() // Works. { // ... } [HttpPost] [ValidateAntiForgeryToken(Salt = Constants.AntiForgeryTokenSalt)] public ActionResult PostAction1(/* ... */) { // ... } [HttpPost] [ValidateAntiForgeryToken(Salt = Constants.AntiForgeryTokenSalt)] public ActionResult PostAction2(/* ... */) { // ... } // ... } This is a little bit crazy, because one application can have a lot of POST actions. Solution To avoid a large number of [ValidateAntiForgeryToken] attributes (one for each POST action), the following ValidateAntiForgeryTokenWrapperAttribute wrapper class can be helpful, where HTTP verbs can be specified:[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false, Inherited = true)] public class ValidateAntiForgeryTokenWrapperAttribute : FilterAttribute, IAuthorizationFilter { private readonly ValidateAntiForgeryTokenAttribute _validator; private readonly AcceptVerbsAttribute _verbs; public ValidateAntiForgeryTokenWrapperAttribute(HttpVerbs verbs) : this(verbs, null) { } public ValidateAntiForgeryTokenWrapperAttribute(HttpVerbs verbs, string salt) { this._verbs = new AcceptVerbsAttribute(verbs); this._validator = new ValidateAntiForgeryTokenAttribute() { Salt = salt }; } public void OnAuthorization(AuthorizationContext filterContext) { string httpMethodOverride = filterContext.HttpContext.Request.GetHttpMethodOverride(); if (this._verbs.Verbs.Contains(httpMethodOverride, StringComparer.OrdinalIgnoreCase)) { this._validator.OnAuthorization(filterContext); } } } When this attribute is declared on controller, only HTTP requests with the specified verbs are validated:[ValidateAntiForgeryTokenWrapper(HttpVerbs.Post, Constants.AntiForgeryTokenSalt)] public class SomeController : Controller { // GET actions are not affected. // Only HTTP POST requests are validated. } Now one single attribute on controller turns on validation for all POST actions. Maybe it would be nice if HTTP verbs can be specified on the built-in [ValidateAntiForgeryToken] attribute, which is easy to implemented. Specify Non-constant salt in runtime By default, the salt should be a compile time constant, so it can be used for the [ValidateAntiForgeryToken] or [ValidateAntiForgeryTokenWrapper] attribute. Problem One Web product might be sold to many clients. If a constant salt is evaluated in compile time, after the product is built and deployed to many clients, they all have the same salt. Of course, clients do not like this. Even some clients might want to specify a custom salt in configuration. In these scenarios, salt is required to be a runtime value. Solution In the above [ValidateAntiForgeryToken] and [ValidateAntiForgeryTokenWrapper] attribute, the salt is passed through constructor. So one solution is to remove this parameter:public class ValidateAntiForgeryTokenWrapperAttribute : FilterAttribute, IAuthorizationFilter { public ValidateAntiForgeryTokenWrapperAttribute(HttpVerbs verbs) { this._verbs = new AcceptVerbsAttribute(verbs); this._validator = new ValidateAntiForgeryTokenAttribute() { Salt = AntiForgeryToken.Value }; } // Other members. } But here the injected dependency becomes a hard dependency. So the other solution is moving validation code into controller to work around the limitation of attributes:public abstract class AntiForgeryControllerBase : Controller { private readonly ValidateAntiForgeryTokenAttribute _validator; private readonly AcceptVerbsAttribute _verbs; protected AntiForgeryControllerBase(HttpVerbs verbs, string salt) { this._verbs = new AcceptVerbsAttribute(verbs); this._validator = new ValidateAntiForgeryTokenAttribute() { Salt = salt }; } protected override void OnAuthorization(AuthorizationContext filterContext) { base.OnAuthorization(filterContext); string httpMethodOverride = filterContext.HttpContext.Request.GetHttpMethodOverride(); if (this._verbs.Verbs.Contains(httpMethodOverride, StringComparer.OrdinalIgnoreCase)) { this._validator.OnAuthorization(filterContext); } } } Then make controller classes inheriting from this AntiForgeryControllerBase class. Now the salt is no long required to be a compile time constant. Submit token via AJAX For browser side, once server side turns on anti-forgery validation for HTTP POST, all AJAX POST requests will fail by default. Problem In AJAX scenarios, the HTTP POST request is not sent by form. Take jQuery as an example:$.post(url, { productName: "Tofu", categoryId: 1 // Token is not posted. }, callback); This kind of AJAX POST requests will always be invalid, because server side code cannot see the token in the posted data. Solution Basically, the tokens must be printed to browser then sent back to server. So first of all, HtmlHelper.AntiForgeryToken() need to be called somewhere. Now the browser has token in both HTML and cookie. Then jQuery must find the printed token in the HTML, and append token to the data before sending:$.post(url, { productName: "Tofu", categoryId: 1, __RequestVerificationToken: getToken() // Token is posted. }, callback); To be reusable, this can be encapsulated into a tiny jQuery plugin:/// <reference path="jquery-1.4.2.js" /> (function ($) { $.getAntiForgeryToken = function (tokenWindow, appPath) { // HtmlHelper.AntiForgeryToken() must be invoked to print the token. tokenWindow = tokenWindow && typeof tokenWindow === typeof window ? tokenWindow : window; appPath = appPath && typeof appPath === "string" ? "_" + appPath.toString() : ""; // The name attribute is either __RequestVerificationToken, // or __RequestVerificationToken_{appPath}. tokenName = "__RequestVerificationToken" + appPath; // Finds the <input type="hidden" name={tokenName} value="..." /> from the specified. // var inputElements = $("input[type='hidden'][name='__RequestVerificationToken" + appPath + "']"); var inputElements = tokenWindow.document.getElementsByTagName("input"); for (var i = 0; i < inputElements.length; i++) { var inputElement = inputElements[i]; if (inputElement.type === "hidden" && inputElement.name === tokenName) { return { name: tokenName, value: inputElement.value }; } } return null; }; $.appendAntiForgeryToken = function (data, token) { // Converts data if not already a string. if (data && typeof data !== "string") { data = $.param(data); } // Gets token from current window by default. token = token ? token : $.getAntiForgeryToken(); // $.getAntiForgeryToken(window). data = data ? data + "&" : ""; // If token exists, appends {token.name}={token.value} to data. return token ? data + encodeURIComponent(token.name) + "=" + encodeURIComponent(token.value) : data; }; // Wraps $.post(url, data, callback, type). $.postAntiForgery = function (url, data, callback, type) { return $.post(url, $.appendAntiForgeryToken(data), callback, type); }; // Wraps $.ajax(settings). $.ajaxAntiForgery = function (settings) { settings.data = $.appendAntiForgeryToken(settings.data); return $.ajax(settings); }; })(jQuery); In most of the scenarios, it is Ok to just replace $.post() invocation with $.postAntiForgery(), and replace $.ajax() with $.ajaxAntiForgery():$.postAntiForgery(url, { productName: "Tofu", categoryId: 1 }, callback); // Token is posted. There might be some scenarios of custom token, where $.appendAntiForgeryToken() is useful:data = $.appendAntiForgeryToken(data, token); // Token is already in data. No need to invoke $.postAntiForgery(). $.post(url, data, callback); And there are scenarios that the token is not in the current window. For example, an HTTP POST request can be sent by an iframe, while the token is in the parent window. Here, token's container window can be specified for $.getAntiForgeryToken():data = $.appendAntiForgeryToken(data, $.getAntiForgeryToken(window.parent)); // Token is already in data. No need to invoke $.postAntiForgery(). $.post(url, data, callback); If you have better solution, please do tell me.

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  • Translating with Google Translate without API and C# Code

    - by Rick Strahl
    Some time back I created a data base driven ASP.NET Resource Provider along with some tools that make it easy to edit ASP.NET resources interactively in a Web application. One of the small helper features of the interactive resource admin tool is the ability to do simple translations using both Google Translate and Babelfish. Here's what this looks like in the resource administration form: When a resource is displayed, the user can click a Translate button and it will show the current resource text and then lets you set the source and target languages to translate. The Go button fires the translation for both Google and Babelfish and displays them - pressing use then changes the language of the resource to the target language and sets the resource value to the newly translated value. It's a nice and quick way to get a quick translation going. Ch… Ch… Changes Originally, both implementations basically did some screen scraping of the interactive Web sites and retrieved translated text out of result HTML. Screen scraping is always kind of an iffy proposition as content can be changed easily, but surprisingly that code worked for many years without fail. Recently however, Google at least changed their input pages to use AJAX callbacks and the page updates no longer worked the same way. End result: The Google translate code was broken. Now, Google does have an official API that you can access, but the API is being deprecated and you actually need to have an API key. Since I have public samples that people can download the API key is an issue if I want people to have the samples work out of the box - the only way I could even do this is by sharing my API key (not allowed).   However, after a bit of spelunking and playing around with the public site however I found that Google's interactive translate page actually makes callbacks using plain public access without an API key. By intercepting some of those AJAX calls and calling them directly from code I was able to get translation back up and working with minimal fuss, by parsing out the JSON these AJAX calls return. I don't think this particular Warning: This is hacky code, but after a fair bit of testing I found this to work very well with all sorts of languages and accented and escaped text etc. as long as you stick to small blocks of translated text. I thought I'd share it in case anybody else had been relying on a screen scraping mechanism like I did and needed a non-API based replacement. Here's the code: /// <summary> /// Translates a string into another language using Google's translate API JSON calls. /// <seealso>Class TranslationServices</seealso> /// </summary> /// <param name="Text">Text to translate. Should be a single word or sentence.</param> /// <param name="FromCulture"> /// Two letter culture (en of en-us, fr of fr-ca, de of de-ch) /// </param> /// <param name="ToCulture"> /// Two letter culture (as for FromCulture) /// </param> public string TranslateGoogle(string text, string fromCulture, string toCulture) { fromCulture = fromCulture.ToLower(); toCulture = toCulture.ToLower(); // normalize the culture in case something like en-us was passed // retrieve only en since Google doesn't support sub-locales string[] tokens = fromCulture.Split('-'); if (tokens.Length > 1) fromCulture = tokens[0]; // normalize ToCulture tokens = toCulture.Split('-'); if (tokens.Length > 1) toCulture = tokens[0]; string url = string.Format(@"http://translate.google.com/translate_a/t?client=j&text={0}&hl=en&sl={1}&tl={2}", HttpUtility.UrlEncode(text),fromCulture,toCulture); // Retrieve Translation with HTTP GET call string html = null; try { WebClient web = new WebClient(); // MUST add a known browser user agent or else response encoding doen't return UTF-8 (WTF Google?) web.Headers.Add(HttpRequestHeader.UserAgent, "Mozilla/5.0"); web.Headers.Add(HttpRequestHeader.AcceptCharset, "UTF-8"); // Make sure we have response encoding to UTF-8 web.Encoding = Encoding.UTF8; html = web.DownloadString(url); } catch (Exception ex) { this.ErrorMessage = Westwind.Globalization.Resources.Resources.ConnectionFailed + ": " + ex.GetBaseException().Message; return null; } // Extract out trans":"...[Extracted]...","from the JSON string string result = Regex.Match(html, "trans\":(\".*?\"),\"", RegexOptions.IgnoreCase).Groups[1].Value; if (string.IsNullOrEmpty(result)) { this.ErrorMessage = Westwind.Globalization.Resources.Resources.InvalidSearchResult; return null; } //return WebUtils.DecodeJsString(result); // Result is a JavaScript string so we need to deserialize it properly JavaScriptSerializer ser = new JavaScriptSerializer(); return ser.Deserialize(result, typeof(string)) as string; } To use the code is straightforward enough - simply provide a string to translate and a pair of two letter source and target languages: string result = service.TranslateGoogle("Life is great and one is spoiled when it goes on and on and on", "en", "de"); TestContext.WriteLine(result); How it works The code to translate is fairly straightforward. It basically uses the URL I snagged from the Google Translate Web Page slightly changed to return a JSON result (&client=j) instead of the funky nested PHP style JSON array that the default returns. The JSON result returned looks like this: {"sentences":[{"trans":"Das Leben ist großartig und man wird verwöhnt, wenn es weiter und weiter und weiter geht","orig":"Life is great and one is spoiled when it goes on and on and on","translit":"","src_translit":""}],"src":"en","server_time":24} I use WebClient to make an HTTP GET call to retrieve the JSON data and strip out part of the full JSON response that contains the actual translated text. Since this is a JSON response I need to deserialize the JSON string in case it's encoded (for upper/lower ASCII chars or quotes etc.). Couple of odd things to note in this code: First note that a valid user agent string must be passed (or at least one starting with a common browser identification - I use Mozilla/5.0). Without this Google doesn't encode the result with UTF-8, but instead uses a ISO encoding that .NET can't easily decode. Google seems to ignore the character set header and use the user agent instead which is - odd to say the least. The other is that the code returns a full JSON response. Rather than use the full response and decode it into a custom type that matches Google's result object, I just strip out the translated text. Yeah I know that's hacky but avoids an extra type and firing up the JavaScript deserializer. My internal version uses a small DecodeJsString() method to decode Javascript without the overhead of a full JSON parser. It's obviously not rocket science but as mentioned above what's nice about it is that it works without an Google API key. I can't vouch on how many translates you can do before there are cut offs but in my limited testing running a few stress tests on a Web server under load I didn't run into any problems. Limitations There are some restrictions with this: It only works on single words or single sentences - multiple sentences (delimited by .) are cut off at the ".". There is also a length limitation which appears to happen at around 220 characters or so. While that may not sound  like much for typical word or phrase translations this this is plenty of length. Use with a grain of salt - Google seems to be trying to limit their exposure to usage of the Translate APIs so this code might break in the future, but for now at least it works. FWIW, I also found that Google's translation is not as good as Babelfish, especially for contextual content like sentences. Google is faster, but Babelfish tends to give better translations. This is why in my translation tool I show both Google and Babelfish values retrieved. You can check out the code for this in the West Wind West Wind Web Toolkit's TranslationService.cs file which contains both the Google and Babelfish translation code pieces. Ironically the Babelfish code has been working forever using screen scraping and continues to work just fine today. I think it's a good idea to have multiple translation providers in case one is down or changes its format, hence the dual display in my translation form above. I hope this has been helpful to some of you - I've actually had many small uses for this code in a number of applications and it's sweet to have a simple routine that performs these operations for me easily. Resources Live Localization Sample Localization Resource Provider Administration form that includes options to translate text using Google and Babelfish interactively. TranslationService.cs The full source code in the West Wind West Wind Web Toolkit's Globalization library that contains the translation code. © Rick Strahl, West Wind Technologies, 2005-2011Posted in CSharp  HTTP   Tweet (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

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  • Creating a Dynamic DataRow for easier DataRow Syntax

    - by Rick Strahl
    I've been thrown back into an older project that uses DataSets and DataRows as their entity storage model. I have several applications internally that I still maintain that run just fine (and I sometimes wonder if this wasn't easier than all this ORM crap we deal with with 'newer' improved technology today - but I disgress) but use this older code. For the most part DataSets/DataTables/DataRows are abstracted away in a pseudo entity model, but in some situations like queries DataTables and DataRows are still surfaced to the business layer. Here's an example. Here's a business object method that runs dynamic query and the code ends up looping over the result set using the ugly DataRow Array syntax:public int UpdateAllSafeTitles() { int result = this.Execute("select pk, title, safetitle from " + Tablename + " where EntryType=1", "TPks"); if (result < 0) return result; result = 0; foreach (DataRow row in this.DataSet.Tables["TPks"].Rows) { string title = row["title"] as string; string safeTitle = row["safeTitle"] as string; int pk = (int)row["pk"]; string newSafeTitle = this.GetSafeTitle(title); if (newSafeTitle != safeTitle) { this.ExecuteNonQuery("update " + this.Tablename + " set safeTitle=@safeTitle where pk=@pk", this.CreateParameter("@safeTitle",newSafeTitle), this.CreateParameter("@pk",pk) ); result++; } } return result; } The problem with looping over DataRow objecs is two fold: The array syntax is tedious to type and not real clear to look at, and explicit casting is required in order to do anything useful with the values. I've highlighted the place where this matters. Using the DynamicDataRow class I'll show in a minute this code can be changed to look like this:public int UpdateAllSafeTitles() { int result = this.Execute("select pk, title, safetitle from " + Tablename + " where EntryType=1", "TPks"); if (result < 0) return result; result = 0; foreach (DataRow row in this.DataSet.Tables["TPks"].Rows) { dynamic entry = new DynamicDataRow(row); string newSafeTitle = this.GetSafeTitle(entry.title); if (newSafeTitle != entry.safeTitle) { this.ExecuteNonQuery("update " + this.Tablename + " set safeTitle=@safeTitle where pk=@pk", this.CreateParameter("@safeTitle",newSafeTitle), this.CreateParameter("@pk",entry.pk) ); result++; } } return result; } The code looks much a bit more natural and describes what's happening a little nicer as well. Well, using the new dynamic features in .NET it's actually quite easy to implement the DynamicDataRow class. Creating your own custom Dynamic Objects .NET 4.0 introduced the Dynamic Language Runtime (DLR) and opened up a whole bunch of new capabilities for .NET applications. The dynamic type is an easy way to avoid Reflection and directly access members of 'dynamic' or 'late bound' objects at runtime. There's a lot of very subtle but extremely useful stuff that dynamic does (especially for COM Interop scenearios) but in its simplest form it often allows you to do away with manual Reflection at runtime. In addition you can create DynamicObject implementations that can perform  custom interception of member accesses and so allow you to provide more natural access to more complex or awkward data structures like the DataRow that I use as an example here. Bascially you can subclass DynamicObject and then implement a few methods (TryGetMember, TrySetMember, TryInvokeMember) to provide the ability to return dynamic results from just about any data structure using simple property/method access. In the code above, I created a custom DynamicDataRow class which inherits from DynamicObject and implements only TryGetMember and TrySetMember. Here's what simple class looks like:/// <summary> /// This class provides an easy way to turn a DataRow /// into a Dynamic object that supports direct property /// access to the DataRow fields. /// /// The class also automatically fixes up DbNull values /// (null into .NET and DbNUll to DataRow) /// </summary> public class DynamicDataRow : DynamicObject { /// <summary> /// Instance of object passed in /// </summary> DataRow DataRow; /// <summary> /// Pass in a DataRow to work off /// </summary> /// <param name="instance"></param> public DynamicDataRow(DataRow dataRow) { DataRow = dataRow; } /// <summary> /// Returns a value from a DataRow items array. /// If the field doesn't exist null is returned. /// DbNull values are turned into .NET nulls. /// /// </summary> /// <param name="binder"></param> /// <param name="result"></param> /// <returns></returns> public override bool TryGetMember(GetMemberBinder binder, out object result) { result = null; try { result = DataRow[binder.Name]; if (result == DBNull.Value) result = null; return true; } catch { } result = null; return false; } /// <summary> /// Property setter implementation tries to retrieve value from instance /// first then into this object /// </summary> /// <param name="binder"></param> /// <param name="value"></param> /// <returns></returns> public override bool TrySetMember(SetMemberBinder binder, object value) { try { if (value == null) value = DBNull.Value; DataRow[binder.Name] = value; return true; } catch {} return false; } } To demonstrate the basic features here's a short test: [TestMethod] [ExpectedException(typeof(RuntimeBinderException))] public void BasicDataRowTests() { DataTable table = new DataTable("table"); table.Columns.Add( new DataColumn() { ColumnName = "Name", DataType=typeof(string) }); table.Columns.Add( new DataColumn() { ColumnName = "Entered", DataType=typeof(DateTime) }); table.Columns.Add(new DataColumn() { ColumnName = "NullValue", DataType = typeof(string) }); DataRow row = table.NewRow(); DateTime now = DateTime.Now; row["Name"] = "Rick"; row["Entered"] = now; row["NullValue"] = null; // converted in DbNull dynamic drow = new DynamicDataRow(row); string name = drow.Name; DateTime entered = drow.Entered; string nulled = drow.NullValue; Assert.AreEqual(name, "Rick"); Assert.AreEqual(entered,now); Assert.IsNull(nulled); // this should throw a RuntimeBinderException Assert.AreEqual(entered,drow.enteredd); } The DynamicDataRow requires a custom constructor that accepts a single parameter that sets the DataRow. Once that's done you can access property values that match the field names. Note that types are automatically converted - no type casting is needed in the code you write. The class also automatically converts DbNulls to regular nulls and vice versa which is something that makes it much easier to deal with data returned from a database. What's cool here isn't so much the functionality - even if I'd prefer to leave DataRow behind ASAP -  but the fact that we can create a dynamic type that uses a DataRow as it's 'DataSource' to serve member values. It's pretty useful feature if you think about it, especially given how little code it takes to implement. By implementing these two simple methods we get to provide two features I was complaining about at the beginning that are missing from the DataRow: Direct Property Syntax Automatic Type Casting so no explicit casts are required Caveats As cool and easy as this functionality is, it's important to understand that it doesn't come for free. The dynamic features in .NET are - well - dynamic. Which means they are essentially evaluated at runtime (late bound). Rather than static typing where everything is compiled and linked by the compiler/linker, member invokations are looked up at runtime and essentially call into your custom code. There's some overhead in this. Direct invocations - the original code I showed - is going to be faster than the equivalent dynamic code. However, in the above code the difference of running the dynamic code and the original data access code was very minor. The loop running over 1500 result records took on average 13ms with the original code and 14ms with the dynamic code. Not exactly a serious performance bottleneck. One thing to remember is that Microsoft optimized the DLR code significantly so that repeated calls to the same operations are routed very efficiently which actually makes for very fast evaluation. The bottom line for performance with dynamic code is: Make sure you test and profile your code if you think that there might be a performance issue. However, in my experience with dynamic types so far performance is pretty good for repeated operations (ie. in loops). While usually a little slower the perf hit is a lot less typically than equivalent Reflection work. Although the code in the second example looks like standard object syntax, dynamic is not static code. It's evaluated at runtime and so there's no type recognition until runtime. This means no Intellisense at development time, and any invalid references that call into 'properties' (ie. fields in the DataRow) that don't exist still cause runtime errors. So in the case of the data row you still get a runtime error if you mistype a column name:// this should throw a RuntimeBinderException Assert.AreEqual(entered,drow.enteredd); Dynamic - Lots of uses The arrival of Dynamic types in .NET has been met with mixed emotions. Die hard .NET developers decry dynamic types as an abomination to the language. After all what dynamic accomplishes goes against all that a static language is supposed to provide. On the other hand there are clearly scenarios when dynamic can make life much easier (COM Interop being one place). Think of the possibilities. What other data structures would you like to expose to a simple property interface rather than some sort of collection or dictionary? And beyond what I showed here you can also implement 'Method missing' behavior on objects with InvokeMember which essentially allows you to create dynamic methods. It's all very flexible and maybe just as important: It's easy to do. There's a lot of power hidden in this seemingly simple interface. Your move…© Rick Strahl, West Wind Technologies, 2005-2011Posted in CSharp  .NET   Tweet (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

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  • How to have other divs with a flash liquid layout that fits to the page?

    - by brybam
    Basically the majority of my content is flash based. I designed it using Flash Builder (Flex) and Its in a liquid layout, (everything is in percents) and if im JUST embedding the flash content it scales to the page fine, and i have the flash content set to have a padding of 50 px. I put a header div in fine with no problems, but I have 2 problems, the first being the footer div seems to cover up the buttom of the flash content in IE, but it looks just fine in chrome. How can I solve this? I'm using the stock embed code that Flex provides, I tried to edit the css style for the div which I think is #flashContent and give it a min width and min height but it didnt seem to work, actually anything I did to #flashContent didn't seem to do anything, maybe its not the div i need to be adding that attribute to... And my other problem is I dont even know where to start when it comes to placing a div thats 280width by 600height colum to the right side of the flash content. If i could specify a size for the flash content, and the float it left, and float the colum right, and clear it with the container div id be just fine....But remember the flash content is set to 100% Scale (well techically 100%x80% because it looked better that way). Does anyone know how I can start to deal with creating a more complex scaleable flash layouts that includes other divs? ALL WELL MAINTAINING IE SUPPORT? IE is ruining my life. Here's the code I'm using: (or if it will help you visualize what im trying to do here's the page where im working on setting this up http://apumpkinpatch.com/textmashnew/) <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"> <head> <title>TextMixup</title> <meta name="google" value="notranslate"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link href="css.css" rel="stylesheet" type="text/css" /> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.5.2/jquery.min.js"></script> <script src="../appassets/scripts/jquery.titlealert.js"></script> <script type="text/javascript"> var _gaq = _gaq || []; _gaq.push(['_setAccount', 'UA-19768131-2']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); function tabNotification() { $.titleAlert('New Message!', {interval:200,requireBlur:true,stopOnFocus:true}); } function joinNotification() { $.titleAlert('Joined Chat!', {interval:200,requireBlur:true,stopOnFocus:true}); } </script> <!-- BEGIN Browser History required section --> <link rel="stylesheet" type="text/css" href="history/history.css" /> <script type="text/javascript" src="history/history.js"></script> <!-- END Browser History required section --> <script type="text/javascript" src="swfobject.js"></script> <script type="text/javascript"> var swfVersionStr = "10.2.0"; var xiSwfUrlStr = "playerProductInstall.swf"; var flashvars = {}; var params = {}; params.quality = "high"; params.bgcolor = "#ffffff"; params.allowscriptaccess = "sameDomain"; params.allowfullscreen = "true"; var attributes = {}; attributes.id = "TextMixup"; attributes.name = "TextMixup"; attributes.align = "middle"; swfobject.embedSWF( "TextMixup.swf", "flashContent", "100%", "80%", swfVersionStr, xiSwfUrlStr, flashvars, params, attributes); swfobject.createCSS("#flashContent", "display:block;text-align:left;"); </script> </head> <body> <div id="homebar"><a href="http://apumpkinpatch.com"><img src="../appassets/images/logo/logoHor_130_30.png" alt="APumpkinPatch HOME" width="130" height="30" hspace="10" vspace="3" border="0"/></a> </div> <div id="topad"> <script type="text/javascript"><!-- google_ad_client = "pub-5824388356626461"; /* 728x90, textmash */ google_ad_slot = "1114351240"; google_ad_width = 728; google_ad_height = 90; //--> </script> <script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> </script> </div> <div id="mainContainer"> <div id="flashContent"> <p> To view this page ensure that Adobe Flash Player version 10.2.0 or greater is installed. </p> <script type="text/javascript"> var pageHost = ((document.location.protocol == "https:") ? "https://" : "http://"); document.write("<a href='http://www.adobe.com/go/getflashplayer'><img src='" + pageHost + "www.adobe.com/images/shared/download_buttons/get_flash_player.gif' alt='Get Adobe Flash player' /></a>" ); </script> </div> <noscript> <object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="100%" height="80%" id="TextMixup"> <param name="movie" value="TextMixup.swf" /> <param name="quality" value="high" /> <param name="bgcolor" value="#ffffff" /> <param name="allowScriptAccess" value="sameDomain" /> <param name="allowFullScreen" value="true" /> <!--[if !IE]>--> <object type="application/x-shockwave-flash" data="TextMixup.swf" width="100%" height="80%"> <param name="quality" value="high" /> <param name="bgcolor" value="#ffffff" /> <param name="allowScriptAccess" value="sameDomain" /> <param name="allowFullScreen" value="true" /> <!--<![endif]--> <!--[if gte IE 6]>--> <p> Either scripts and active content are not permitted to run or Adobe Flash Player version 10.2.0 or greater is not installed. </p> <!--<![endif]--> <a href="http://www.adobe.com/go/getflashplayer"> <img src="http://www.adobe.com/images/shared/download_buttons/get_flash_player.gif" alt="Get Adobe Flash Player" /> </a> <!--[if !IE]>--> </object> <!--<![endif]--> </object> </noscript> <div id="convosPreview">This is a div I would want to appear as a colum to the right of the flash content that can scale</div> <!---End mainContainer --> </div> <div id="footer"> <a href="../apps.html"><img src="../appassets/images/apps.png" hspace="5" vspace="5" alt="random chat app apumpkinpatch" width="228" height="40" border="0" /></a><a href="https://chrome.google.com/webstore/detail/hjmnobclpbhnjcpdnpdnkbgdkbfifbao?hl=en-US#"><img src="../appassets/images/chromeapp.png" alt="chrome app random video chat apumpkinpatch" width="115" height="40" vspace="5" border="0" /></a><br /><br /> <a href="http://spacebarup.com" target="_blank">©2011 Space Bar</a> | <a href="../tos.html">TOS & Privacy Policy</a> | <a href="../help.html">FAQ & Help</a> | <a href="../tips.html">Important online safety tips</a> | <a href="http://www.facebook.com/pages/APumpkinPatchcom/164279206963001?sk=app_2373072738" target="_blank">Discussion Boards</a><br /> <p>You must be at least 18 years of age to access this web site.<br />APumpkinPatch.com is not responsible for the actions of any visitors of this site.<br />APumpkinPatch.com does not endorse or claim ownership to any of the content that is broadcast through this site. </p><h2>A Pumpkin Patch is BRAND NEW and will be developed a lot over the next few months adding video chat games, chat rooms, and more! Check back often it's going to be a lot of fun!</h2> </div> </body> </html> myCSS: html, body { height:100%; } body { text-align:center; font-family: Helvetica, Arial, sans-serif; margin:0; padding:0; overflow:auto; text-align:center; background-color: #ffffff; } object:focus { outline:none; } #homebar { clear:both; text-align: left; width: 100%; height: 40px; background-color:#333333; color:#CCC; overflow:hidden; box-shadow: 0px 0px 14px rgba(0, 0, 0, 0.65); -moz-box-shadow: 0px 0px 14px rgba(0, 0, 0, 0.65); -webkit-box-shadow: 0px 0px 14px rgba(0, 0, 0, 0.65); margin-bottom: 10px; } #mainContainer { height:auto; width:auto; clear:both; } #flashContent { display:none; height:auto; float:left; min-height: 500px; min-width: 340px; } /**this is the div i want to appear as a column net to the scaleable flash content **/ #convosPreview { float:right; width:280px; height:600px; }

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  • Why does an error appear every time I try to open the Ubuntu Software Center? [duplicate]

    - by askubuntu7639
    This question already has an answer here: How do I remove a broken software source? 3 answers There is a glitch on the Ubuntu Software Center and whenever I open it an error appears and it keeps loading and never opens. Why does this happen? I have installed Ubuntu 13.04 on a disk and partitioned it. Please help me and ask for excess information if you need it. If you know of any duplicates please show me them!! This is the output of a question someone asked me. SystemError: E:Type '<!DOCTYPE' is not known on line 1 in source list /etc/apt/sources.list.d/medibuntu.list This next output is the output of cat /etc/apt/sources.list.d/medibuntu.list </div> <div style="float:left;"> <div class="textwidget"><script type="text/javascript"><!-- google_ad_client = "ca-pub-2917661377128354"; /* 160X600 Sidebar UX */ google_ad_slot = "9908287444"; google_ad_width = 160; google_ad_height = 600; //-- Recent Comments <article> <div style="float:left; display:block; margin:0 10px 10px 0; border:1px solid #CCCCCC; padding:3px; width:35px; height:35px;"><img alt='' src='http://0.gravatar.com/avatar/ae5f4503d5f167f1cf62d3e36e8242b6?s=35&amp;d=&amp;r=G' class='avatar avatar-35 photo' height='35' width='35' /></div> <div style="float:left;"> <h4 class="author">Richard Syme</h4> <p class="meta"> <time datetime="2013-09-24" pubdate>September 24, 2013</time> | <a class="permalink" href="http://www.unixmen.com/how-to-customize-you-vlc-hot-keys/#comment-13732">#</a> </p> </div> <div class="content" style="float:left;"><p>I dont have a clear button under the hotkeys. All i want to do is get rid of all hotkeys.</p> </article> <article> <div style="float:left; display:block; margin:0 10px 10px 0; border:1px solid #CCCCCC; padding:3px; width:35px; height:35px;"><img alt='' src='http://1.gravatar.com/avatar/ffabde94437e996a506e31e981bcf8fc?s=35&amp;d=&amp;r=G' class='avatar avatar-35 photo' height='35' width='35' /></div> <div style="float:left;"> <h4 class="author">Abin Thomas Mathew</h4> <p class="meta"> <time datetime="2013-09-24" pubdate>September 24, 2013</time> | <a class="permalink" href="http://www.unixmen.com/install-lamp-server-in-centos-6-4-rhel-6-4/#comment-13727">#</a> </p> </div> <div class="content" style="float:left;"><p>Simple and easy to follow tutorial to install and start of phpMyAdmin. Thank you</p> </article> <article> <div style="float:left; display:block; margin:0 10px 10px 0; border:1px solid #CCCCCC; padding:3px; width:35px; height:35px;"><img alt='' src='http://0.gravatar.com/avatar/499ccc1154e9b8569b87413434220b91?s=35&amp;d=&amp;r=G' class='avatar avatar-35 photo' height='35' width='35' /></div> <div style="float:left;"> <h4 class="author">SK</h4> <p class="meta"> <time datetime="2013-09-24" pubdate>September 24, 2013</time> | <a class="permalink" href="http://www.unixmen.com/munich-giving-ubuntu-linux-cds-citizens/#comment-13725">#</a> </p> </div> <div class="content" style="float:left;"><p>I have Bosslinux and i used it for a while. Now i swiched to Ubuntu 13.04.</p> </article> <article> <div style="float:left; display:block; margin:0 10px 10px 0; border:1px solid #CCCCCC; padding:3px; width:35px; height:35px;"><img alt='' src='http://1.gravatar.com/avatar/3dc2f7140bdd857dcdfe815a6e29aa6b?s=35&amp;d=&amp;r=G' class='avatar avatar-35 photo' height='35' width='35' /></div> <div style="float:left;"> <h4 class="author">Anon</h4> <p class="meta"> <time datetime="2013-09-24" pubdate>September 24, 2013</time> | <a class="permalink" href="http://www.unixmen.com/linus-torvalds-talks-backdoor-linuxcon/#comment-13724">#</a> </p> </div> <div class="content" style="float:left;"><p>Do you know how much extra bloat is in Ubuntu these days? How the hell does anyone really know?</p> </article> <article> <div style="float:left; display:block; margin:0 10px 10px 0; border:1px solid #CCCCCC; padding:3px; width:35px; height:35px;"><img alt='' src='http://1.gravatar.com/avatar/9dd28d1cf5efe754fa58b53c1e6de401?s=35&amp;d=&amp;r=G' class='avatar avatar-35 photo' height='35' width='35' /></div> <div style="float:left;"> <h4 class="author"><a href="http://ambitiousgeeks.blogspot.com/" onclick="javascript:_gaq.push(['_trackEvent','outbound-commentauthor','http://ambitiousgeeks.blogspot.com']);" rel='external nofollow' class='url'>Ambition</a></h4> <p class="meta"> <time datetime="2013-09-24" pubdate>September 24, 2013</time> | <a class="permalink" href="http://www.unixmen.com/linus-torvalds-talks-backdoor-linuxcon/#comment-13723">#</a> </p> </div> <div class="content" style="float:left;"><p>True :)</p> </article> </div> <div style="float:left;"> &nbsp;<script type="text/javascript"> window.___gcfg = {lang: 'en-US'}; (function() {var po = document.createElement("script"); po.type = "text/javascript"; po.async = true;po.src = "https://apis.google.com/js/plusone.js"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(po, s); })(); <div class="execphpwidget"></div> </div> <div class="module2"> <div class="recentPost"> <h3 class="module-title2">Favorite Links</h3> <ul class='xoxo blogroll'> http://www.iticy.com']);"Cheap Hosting http://www.tuxmachines.org']);"TuxMachines.org http://www.ubuntugeek.com']);"UbuntuGeek.com http://www.stelinuxhost.com']);"Webdesign & SEO </ul> <img src="http://180016988.r.cdn77.net/wp-content/themes/unimax/images/bigLine.jpg" alt="" /> </div> </div> <div align="center" style="min-height:610px;"> <div class="execphpwidget"></div> <div class="textwidget"><a rel="license" href="http://creativecommons.org/licenses/by-nc-nd/3.0/deed.en_US" onclick="javascript:_gaq.push(['_trackEvent','outbound-widget','http://creativecommons.org']);"><img alt="Creative Commons License" style="border-width:0" src="http://i.creativecommons.org/l/by-nc-nd/3.0/88x31.png" /></a><br />This work by <a xmlns:cc="http://creativecommons.org/ns#" href="unixmen.com" property="cc:attributionName" rel="cc:attributionURL">unixmen.com</a> is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by-nc-nd/3.0/deed.en_US" >Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License</a>.</div> </div> </div> <!-- #primary .widget-area --> </div> Unixmen Archive Select Month September 2013 August 2013 July 2013 June 2013 May 2013 April 2013 March 2013 February 2013 January 2013 December 2012 November 2012 October 2012 September 2012 August 2012 July 2012 June 2012 May 2012 April 2012 March 2012 February 2012 January 2012 December 2011 November 2011 October 2011 September 2011 August 2011 July 2011 June 2011 May 2011 April 2011 March 2011 February 2011 January 2011 December 2010 November 2010 October 2010 September 2010 August 2010 July 2010 June 2010 May 2010 April 2010 March 2010 February 2010 January 2010 December 2009 November 2009 October 2009 September 2009 August 2009 July 2009 June 2009 May 2009 April 2009 March 2009 February 2009 January 2009 December 2008 Tags Cloudandroid apache browser Centos chrome command line Debian eyecandy Fedora firefox games gaming gnome google karmic koala kde libreoffice Linux linux distribution LinuxMint lucid lynx maverick meerkat mysql news oneiric ocelot openoffice opensource opensuse oracle ppa Precise Pangolin release RHEL security server software themes tools ubuntu unix upgrade virtualbox vlc windows wine Unixmen Twitts Firefox 16, a treat for developers http://t.co/cnd27CzT Ubuntu 12.10 ‘Quantal Quetzal’: Beta 2 Sneak Peek http://t.co/hd4LwDOy Top 5 security Myths about Linux; and their realities http://t.co/zO1LgHST About Us Advertising Sitemap Privacy Contact Us Hire Us Copyright © 2008-2013 Unixmen.com . Maintained by Unixmen . /* */ jQuery(document).on('ready post-load', easy_fancybox_handler ); http://www.w3-edge.com/wordpress-plugins/ Page Caching using apc Database Caching 3/186 queries in 0.035 seconds using apc Content Delivery Network via 180016988.r.cdn77.net Served from: www.unixmen.com @ 2013-09-25 01:38:14 by W3 Total Cache

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  • Show certain InfoWindow in Google Map API V3

    - by pash
    Hello. I wrote the following code to display markers. There are 2 buttons which show Next or Previous Infowindow for markers. But problem is that InfoWindows are not shown using google.maps.event.trigger Can someone help me with this problem. Thank you. Here is code: <html> <head> <meta name="viewport" content="initial-scale=1.0, user-scalable=no" /> <meta http-equiv="content-type" content="text/html; charset=UTF-8"/> <title>Google Maps JavaScript API v3 Example: Common Loader</title> <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script> <script type="text/javascript"> var infowindow; var map; var bounds; var markers = []; var markerIndex=0; function initialize() { var myLatlng = new google.maps.LatLng(41.051407, 28.991134); var myOptions = { zoom: 5, center: myLatlng, mapTypeId: google.maps.MapTypeId.ROADMAP } map = new google.maps.Map(document.getElementById("map_canvas"), myOptions); markers = document.getElementsByTagName("marker"); for (var i = 0; i < markers.length; i++) { var latlng = new google.maps.LatLng(parseFloat(markers[i].getAttribute("lat")), parseFloat(markers[i].getAttribute("lng"))); var marker = createMarker(markers[i].getAttribute("name"), latlng, markers[i].getAttribute("phone"), markers[i].getAttribute("distance")); } rebound(map); } function createMarker(name, latlng, phone, distance) { var marker = new google.maps.Marker({position: latlng, map: map}); var myHtml = "<table style='width:100%;'><tr><td><b>" + name + "</b></td></tr><tr><td>" + phone + "</td></tr><tr><td align='right'>" + distance + "</td></tr></table>"; google.maps.event.addListener(marker, "click", function() { if (infowindow) infowindow.close(); infowindow = new google.maps.InfoWindow({content: myHtml}); infowindow.open(map, marker); }); return marker; } function rebound(mymap){ bounds = new google.maps.LatLngBounds(); for (var i = 0; i < markers.length; i++) { bounds.extend(new google.maps.LatLng(parseFloat(markers[i].getAttribute("lat")),parseFloat(markers[i].getAttribute("lng")))); } mymap.fitBounds(bounds); } function showNextInfo() { if(markerIndex<markers.length-1) markerIndex++; else markerIndex = 0 ; alert(markers[markerIndex].getAttribute('name')); google.maps.event.trigger(markers[markerIndex],"click"); } function showPrevInfo() { if(markerIndex>0) markerIndex--; else markerIndex = markers.length-1 ; google.maps.event.trigger(markers[markerIndex],'click'); } </script> </head> <body onload="initialize()"> <div id="map_canvas" style="width:400px; height:300px"></div> <markers> <marker name='Name1' lat='41.051407' lng='28.991134' phone='+902121234561' distance=''/> <marker name='Name2' lat='40.858746' lng='29.121666' phone='+902121234562' distance=''/> <marker name='Name3' lat='41.014604' lng='28.972256' phone='+902121234562' distance=''/> <marker name='Name4' lat='41.012386' lng='26.978350' phone='+902121234562' distance=''/> </markers> <input type="button" onclick="showPrevInfo()" value="prev">&nbsp;<input type="button" onclick="showNextInfo()" value="next"> </body> </html>

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  • How do you traverse and store XML in Blackberry Java app?

    - by Greg
    I'm having a problem accessing the contents of an XML document. My goal is this: Take an XML source and parse it into a fair equivalent of an associative array, then store it as a persistable object. the xml is pretty simple: <root> <element> <category_id>1</category_id> <name>Cars</name> </element> <element> <category_id>2</category_id> <name>Boats</name> </element> </root> Basic java class below. I'm pretty much just calling save(xml) after http response above. Yes, the xml is properly formatted. import java.io.IOException; import java.util.Hashtable; import org.w3c.dom.Document; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import java.util.Vector; import net.rim.device.api.system.PersistentObject; import net.rim.device.api.system.PersistentStore; import net.rim.device.api.xml.parsers.DocumentBuilder; import net.rim.device.api.xml.parsers.DocumentBuilderFactory; public class database{ private static PersistentObject storeVenue; static final long key = 0x2ba5f8081f7ef332L; public Hashtable hashtable; public Vector venue_list; String _node,_element; public database() { storeVenue = PersistentStore.getPersistentObject(key); } public void save(Document xml) { venue_list = new Vector(); storeVenue.setContents(venue_list); Hashtable categories = new Hashtable(); try{ DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory. newInstance(); DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder(); docBuilder.isValidating(); xml.getDocumentElement ().normalize (); NodeList list=xml.getElementsByTagName("*"); _node=new String(); _element = new String(); for (int i=0;i<list.getLength();i++){ Node value=list.item(i).getChildNodes().item(0); _node=list.item(i).getNodeName(); _element=value.getNodeValue(); categories.put(_element, _node); } } catch (Exception e){ System.out.println(e.toString()); } venue_list.addElement(categories); storeVenue.commit(); } The code above is the work in progress, and is most likely heavily flawed. However, I have been at this for days now. I can never seem to get all child nodes, or the name / value pair. When I print out the vector as a string, I usually end up with results like this: [{ = root, = element}] and that's it. No "category_id", no "name" Ideally, I would end up with something like [{1 = cars, 2 = boats}] Any help is appreciated. Thanks

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  • Jquery loaded? Colorbox is available? Calling some js file via $.getScript are always downloading fr

    - by uzay95
    I am dynamically load js files with _tumIsler.js (_allStuff.js) <script src="../js/_tumJsler.js" type="text/javascript"></script> It contains: // url=> http: + // + localhost:4399 + /yabant/ // ---- ---- -------------- -------- // protocol + "//" + host + '/virtualDirectory/' var baseUrl = document.location.protocol + "//" + document.location.host + '/yabant/'; // If there is "~/" at the begining of url, replace it with baseUrl function ResolveUrl(url) { if (url.indexOf("~/") == 0) { url = baseUrl + url.substring(2); } return url; } // Attaching scripts to any tag function addJavascript(jsname, pos) { var th = document.getElementsByTagName(pos)[0]; var s = document.createElement('script'); s.setAttribute('type', 'text/javascript'); s.setAttribute('src', jsname); th.appendChild(s); } // I want to make sure jQuery is loaded? addJavascript(ResolveUrl('~/js/1_jquery-1.4.2.min.js'), 'head'); var loaded = false; // assume it didn't first and if it is change it to true function fControl() { // alert("JQUERY is loaded?"); if (typeof jQuery == 'undefined') { loaded = false; fTry2LoadJquery(); } else { loaded = true; fGetOtherScripts(); } } // Check is jQuery loaded fControl(); function fTry2LoadJquery() { // alert("JQUERY didn't load! Trying to reload..."); if (loaded == false) { setTimeout("fControl()", 1000); } else { return; } } function getJavascript(jsname, pos) { // I want to retrieve every script one by one $.ajaxSetup({ async: false, beforeSend: function() { $.ajaxSetup({ async: false, cache: true }); }, complete: function() { $.ajaxSetup({ async: false, cache: true }); }, success: function() { // } }); $.getScript(ResolveUrl(jsname), function() { /* ok! */ }); } function fGetOtherScripts() { // alert("Other js files will be load in this function"); getJavascript(ResolveUrl('~/js/5_json_parse.js'), 'head'); getJavascript(ResolveUrl('~/js/3_jquery.colorbox-min.js'), 'head'); getJavascript(ResolveUrl('~/js/4_AjaxErrorHandling.js'), 'head'); getJavascript(ResolveUrl('~/js/6_jsSiniflar.js'), 'head'); getJavascript(ResolveUrl('~/js/yabanYeni.js'), 'head'); getJavascript(ResolveUrl('~/js/7_ResimBul.js'), 'head'); getJavascript(ResolveUrl('~/js/8_HaberEkle.js'), 'head'); getJavascript(ResolveUrl('~/js/9_etiketIslemleri.js'), 'head'); getJavascript(ResolveUrl('~/js/bugun.js'), 'head'); getJavascript(ResolveUrl('~/js/yaban.js'), 'head'); getJavascript(ResolveUrl('~/embed/bitgravity/functions.js'), 'head'); } After all these js files are loaded, this line is executing to show UploadFile page inside the page when clicked to the button which id is "btnResimYukle" . <script type="text/javascript"> if (jQuery().colorbox) { alert("colorbox exists"); } else { alert("colorbox doesn't exist"); $.ajaxSetup({ cache: true, async: false }); $.getScript(ResolveUrl('~/js/3_jquery.colorbox-min.js'), function() { alert("Loaded ! "); $('#btnResimYukle').live('click', function() { $.fn.colorbox({ iframe: true, width: 700, height: 600, href: ResolveUrl('~/Yonetim/DosyaYukle.aspx') }); return false; }); }); } </script> First i want to ask you very good people, i am always calling js files with $.getScript function. Are they always downloading in every $.getScript requests? And if it is so, how can i prevent that? is this work: $.ajaxSetup({ cache: true, async: false }); Second, i am always getting this error when i press F5 or Ctrl+F5 : But when i press enter key on url, there is no error :s

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  • The HTML5 doctype is not triggering standards mode in IE8

    - by El Guapo
    i work for a company where all our sites currently use the XHTML 1.0 transitional doctype (yes i know it is very old school). I want to change them all to use the HTML5 doctype seeing as it is backwards compatible. One of the reasons why i want to make the switch is because in IE8 if someone has the developer tools installed then the old XHTML doctype switches the browser into compatibility mode and renders the page as IE7. From reading up on it i was led to believe that the HTML5 doctype will set any page to render in standards mode, but this is not happening when i test it on our staging server it still flips into IE7 rendering mode. The weird thing is if i save the page with HTML5 doctype locally and open it, it is rendering in IE8 standards mode. There must be something else causing it to drop into compatibility IE7 rendering. Any ideas what this could be? Below is the head of the test page i have been looking at: <!DOCTYPE html > <html xmlns="http://www.w3.org/1999/xhtml" xmlns:og="http://opengraphprotocol.org/schema/" xmlns:fb="http://www.facebook.com/2008/fbml"> <head> <title>Burton - Mens Clothing - Mens Fashion - Burton Menswear</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="description" content="Burton is one of the UK's leading men's clothing &amp; fashion retailers, with a range of men's clothing designed to make you look &amp; feel good. Find formal &amp; casual clothes &amp; accessories for men online at Burton menswear"/> <meta name="keywords" content="menswear, clothes for men, clothing for men, men clothes, men's fashion, men's wear, men's clothing online, men's clothes online, men's clothes shop, burton men's, burton menswear, burton uk, burton"/> <script type="text/javascript">document.getElementsByTagName('html')[0].className = 'js';</script> <link rel="stylesheet" type="text/css" href="http://eu.burton-menswear.com/wcsstore/ConsumerDirectStorefrontAssetStore/images/colors/color2/v3/css/screen.css" /> <link rel="stylesheet" type="text/css" href="http://eu.burton-menswear.com/wcsstore/ConsumerDirectStorefrontAssetStore/images/colors/color2/v3/css/print.css" media="print"/> <link rel="stylesheet" type="text/css" href="http://eu.burton-menswear.com/wcsstore/ConsumerDirectStorefrontAssetStore/images/colors/color2/v3/css/brand.css" /> <!--[if lt IE 8]> <link rel="stylesheet" href="http://eu.burton-menswear.com/wcsstore/ConsumerDirectStorefrontAssetStore/images/colors/color2/v3/css/ie.css" type="text/css" media="screen, projection"> <![endif]--> <meta http-equiv="content-language" content="en-gb" /> <link rel="shortcut icon" type="image/x-icon" href="http://eu.burton-menswear.com/favicon.ico" /> <link rel="search" type="application/opensearchdescription+xml" title="burton.co.uk Search" href="http://eu.burton-menswear.com/burton-search.xml"/> <!-- Start Summit Tag --> <script type="text/javascript"> var __stormJs = "t1.stormiq.com/dcv4/jslib/3286_D92B7532_4A18_46A8_864A_5FDF1DF25844.js"; </script> <script type="text/javascript" src="http://eu.burton-menswear.com/javascript/track.js"></script> <!-- End Summit Tag --> <!-- Start QuBit Tag --> <script src=//d3c3cq33003psk.cloudfront.net/opentag-31935-42109.js async defer></script> <!-- End QuBit Tag --> <link type="text/css" rel="stylesheet" href="http://reviews.br.wcstage.arcadiagroup.ltd.uk/bvstaging/static/6028-en_gb/bazaarvoice.css" ></link> </head>

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  • iPad: Mobile Safari, HTML5 <video>, and jquery transitions

    - by justinbach
    I'm building a simple proof-of-concept for an iPad-specific website that would use video transitions to bring users from section to section. For purposes of the proof of concept, each "section" is just an image with a semitransparent content text box positioned above it. There are just 2 sections, "home" and "contact", and they've got a transition video sandwiched between them via z-indexing. The idea for the proof of concept is that clicking on the "home" section causes it to disappear, followed by playback of the transition video, which (upon completion) disappears to reveal the "contact" section. Everything is working fine with this version of the demo on the iPad and on Safari for Windows and OS X. Here's the JS: var myVideo = document.getElementsByTagName('video')[0]; $('document').ready(function() { $('#home').click(function() { $(this).css('display','none'); myVideo.play(); myVideo.addEventListener('ended', function() { $('#transition').css('display','none'); }); }); }); What I'd like to do is use a jQuery fadeOut() effect to fade out the text box prior to starting the video when the "home" section is clicked. The code seems simple enough: $('document').ready(function() { $('#home').click(function() { $('#home-copy').fadeOut('slow', function() { $('#home').css('display','none'); myVideo.play(); myVideo.addEventListener('ended', function() { $('#transition').css('display','none'); $('#home-copy').fadeIn('slow'); }); }); }); }); and it's working exactly as desired on desktop versions of Safari. On the iPad, however, the text box fades out as expected and the home section disappears as well, but the video stubbornly refuses to start playing. I really don't know why this would be the case, but that's what's happening. I'd appreciate any advice you might have! Incidentally, here's the markup: <div id="main-container"> <div id="home-copy"> <h1>Lorem Ipsum Dolor Sit Amet</h1> <p>Donec blandit pharetra luctus. Nam at porttitor odio. Nullam sem orci, venenatis sed pharetra eget, commodo rhoncus quam. Ut euismod vehicula bibendum. Curabitur in magna ante, id fringilla lacus. Nullam id elit eget lacus feugiat porta. Nulla vitae orci vehicula risus sagittis egestas quis sed justo.</p> </div> <div id="home"> <img src="images/home.jpg" width="1152" height="720" /> </div> <video id="transition" src="video/home_to_contact_lo_res.mp4" preload width="1152" height="720"></video> <div id="contact"> <img src="images/contact.jpg" width="1152" height="720" /> </div> </div>

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  • Progressbar blocks notiyfyDatasetChanged() method in Android

    - by pathfinder
    I'm trying to display a ProgressBar while a listview is being populated. This is my XML <FrameLayout android:layout_width="fill_parent" android:layout_height="wrap_content" > <ListView android:id="@android:id/list" android:layout_width="fill_parent" android:layout_height="fill_parent" android:divider="@null" android:dividerHeight="0dp" android:fadingEdge="none" > </ListView> <ProgressBar android:id="@+id/doProgress" android:layout_width="60dp" android:layout_height="60dp" android:layout_gravity="center" /> </FrameLayout> ProgressBar's visibiliy has been changed in the onPostExecuteMethod when the whole listview is loaded. AsyncTask Code: public class WhatToDoLoader extends AsyncTask<String, String, String> { ProgressDialog progress = new ProgressDialog(WhatToDo.this); String url = "http://wearedesigners.net/clients/clients12/tourism/fetchWhatToDoList.php"; final String TAG_MAIN = "item"; final String TAG_ID = "itemId"; final String TAG_NAME = "itemName"; final String TAG_DETAIL = "itemDetailText"; final String TAG_ITEM_IMAGE = "itemImages"; final String TAG_MAP = "itemMapData"; final String TAG_MAP_IMAGE = "mapImage"; @Override protected void onProgressUpdate(String... values) { // TODO Auto-generated method stub super.onProgressUpdate(values); adapter.notifyDataSetChanged(); } @Override protected void onPreExecute() { // TODO Auto-generated method stub super.onPreExecute(); /* * progress.setMessage("Loading What To Do List"); progress.show(); */ } @Override protected String doInBackground(String... params) { XMLParser parser = new XMLParser(); String xml = parser.getXmlFromUrl(url); // getting XML Document doc = parser.getDomElement(xml); // getting DOM element NodeList nl = doc.getElementsByTagName(TAG_MAIN); // TODO Auto-generated method stub for (int i = 0; i < nl.getLength(); i++) { // creating new HashMap HashMap<String, String> map = new HashMap<String, String>(); Element e = (Element) nl.item(i); // adding each child node to HashMap key => value map.put(TAG_ID, parser.getValue(e, TAG_ID)); map.put(TAG_NAME, parser.getValue(e, TAG_NAME)); map.put(TAG_DETAIL, parser.getValue(e, TAG_DETAIL)); map.put(TAG_MAP, parser.getValue(e, TAG_MAP)); map.put(TAG_MAP_IMAGE, parser.getValue(e, TAG_MAP_IMAGE)); map.put(TAG_ITEM_IMAGE, parser.getValue(e, TAG_ITEM_IMAGE)); System.out.println("Test : " + parser.getValue(e, TAG_ID)); // adding HashList to ArrayList whatToDoInfo.add(map); publishProgress(""); } return null; } @Override protected void onPostExecute(String result) { // TODO Auto-generated method stub super.onPostExecute(result); ProgressBar pb = (ProgressBar) findViewById(R.id.doProgress); pb.setVisibility(pb.INVISIBLE); } } When i run the code it throws the following exception. *java.lang.IllegalStateException: The content of the adapter has changed but ListView did not receive a notification. Make sure the content of your adapter is not modified from a background thread, but only from the UI thread.* But the same code works fine when the progressbar feature is omitted. I can't find where i'm going wrong. can someone please help me ? Thank you in advance.

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  • JavaScript source file not loading in IE8 Popup

    - by dkris
    I have an issue where the JavaScript source file is loading in popup for IE6, Chrome, Firefox, Safari and Opera. But the same source file is not loading up in IE8. As a result of this the HTML is not being replaced in the Popup and I am getting an error in IE8 popup saying tinyMCE is not defined I have referred to http://stackoverflow.com/questions/2949234/formatting-this-javascript-line and solved issue on all browsers except IE8. The JavaScript function is as follows: function openSupportPage() { var features="width=700,height=400,status=yes,toolbar=no,menubar=no,location=no,scrollbars=yes"; var winId=window.open('','',features); winId.document.open(); winId.document.write('<html><head><title>' + document.title + '</title><link rel="stylesheet" href="../css/default.css" type="text/css">\n'); var winDoc = winId.document; var sEl = winDoc.createElement("script"); sEl.src = "../js/tiny_mce/tiny_mce.js";/*TinyMCE source file*/ sEl.type="text/javascript"; winDoc.getElementsByTagName("head")[0].appendChild(sEl); winId.document.write('<script type="text/javascript">\n'); winId.document.write('function inittextarea() {\n'); winId.document.write('tinyMCE.init({ \n'); winId.document.write('elements : "content",\n'); winId.document.write('theme : "advanced",\n'); winId.document.write('readonly : true,\n'); winId.document.write('mode : "exact",\n'); winId.document.write('theme : "advanced",\n'); winId.document.write('readonly : true,\n'); winId.document.write('setup : function(ed) {\n'); winId.document.write('ed.onInit.add(function() {\n'); winId.document.write('tinyMCE.activeEditor.execCommand("mceToggleVisualAid");\n'); winId.document.write('});\n'); winId.document.write('}\n'); winId.document.write('});}</script>\n'); window.setTimeout(function () {/*using setTimeout to wait for the JS source file to load*/ winId.document.write('</head><body onload="inittextarea()">\n'); winId.document.write(' \n'); var hiddenFrameHTML = document.getElementById("HiddenFrame").innerHTML; hiddenFrameHTML = hiddenFrameHTML.replace(/&amp;/gi, "&"); hiddenFrameHTML = hiddenFrameHTML.replace(/&lt;/gi, "<"); hiddenFrameHTML = hiddenFrameHTML.replace(/&gt;/gi, ">"); winId.document.write(hiddenFrameHTML); winId.document.write('<textarea id="content" rows="10" style="width:100%">\n'); winId.document.write(document.getElementById(top.document.forms[0].id + ":supportStuff").innerHTML); winId.document.write('</textArea>\n'); var hiddenFrameHTML2 = document.getElementById("HiddenFrame2").innerHTML; hiddenFrameHTML2 = hiddenFrameHTML2.replace(/&amp;/gi, "&"); hiddenFrameHTML2 = hiddenFrameHTML2.replace(/&lt;/gi, "<"); hiddenFrameHTML2 = hiddenFrameHTML2.replace(/&gt;/gi, ">"); winId.document.write(hiddenFrameHTML2); winId.document.write('</body></html>\n'); winId.document.close(); }, 300); } Additional Information: Screen shot of the page Rendered HTML Original JSPF please help me with this one.

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  • dynamically drawing polylines on googlemaps using php/mysql

    - by arc
    Hi. I am new to the googlemaps API. I have written a small app for my mobile phone that periodically updates its location to an SQL databse. I would like to display this information on a googlemap in my browser. Ideally i'd like to then poll the database periodically and if any new co-ords have arrived, add them to the line. Best way of describing it is this; http://tiny.cc/HEIa0 In a quest to get to there, i've started on the documents on google and been modifying them to try and acheive what I want. It doesn't work - and i don't know enough to know why. I would love some advice as to why, and any pointers towards my ultimate goal would be very much welcomed. Google Maps AJAX + MySQL/PHP Example <script type="text/javascript"> //<![CDATA[ function load() { if (GBrowserIsCompatible()) { var map = new GMap2(document.getElementById("map")); map.addControl(new GSmallMapControl()); map.addControl(new GMapTypeControl()); map.setCenter(new GLatLng(47.614495, -122.341861), 13); GDownloadUrl("phpsqlajax_genxml.php", function(data) { var xml = GXml.parse(data); var line = []; var markers = xml.documentElement.getElementsByTagName("points"); for (var i = 0; i < points.length; i++) { var point = points.item(i); var lat = point.getAttribute("lat"); var lng = point.getAttribute("lng"); var latlng = new GLatLng(lat, lng); line.push(latlng); if (point.firstChild) { var station = point.firstChild.nodeValue; var marker = createMarker(latlng, station); map.addOverlay(marker); } } var polyline = new GPolyline(line, "#ff0000", 3, 1); map.addOverlay(polyline); }); } //]]> My php file is generating the following XML; <?xml version="1.0" encoding="UTF-8" ?> <points> <point lng="-122.340141" lat="47.608940"/> <point lng="-122.344391" lat="47.613590"/> <point lng="-122.356445" lat="47.624561"/> <point lng="-122.337654" lat="47.606365"/> <point lng="-122.345673" lat="47.612823"/> <point lng="-122.340363" lat="47.605961"/> <point lng="-122.345467" lat="47.613976"/> <point lng="-122.326584" lat="47.617214"/> <point lng="-122.342834" lat="47.610126"/> </points> I have successfully worked through this; http://code.google.com/apis/maps/articles/phpsqlajax.html before attempting to customise the code. Any pointers? Where am I go wrong?

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  • Function calls not working in my page

    - by Vivek Dragon
    I made an select menu that works with the google-font-Api. I made to function in JSBIN here is my work http://jsbin.com/ocutuk/18/ But when i made the copy of my code in a html page its not even loading the font names in page. i tried to make it work but still it is in dead end. This is my html code <!DOCTYPE html> <html> <head> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"> </script> <meta charset=utf-8 /> <title>FONT API</title> <script> function SetFonts(fonts) { for (var i = 0; i < fonts.items.length; i++) { $('#styleFont') .append($("<option></option>") .attr("value", fonts.items[i].family) .text(fonts.items[i].family)); } } var script = document.createElement('script'); script.src = 'https://www.googleapis.com/webfonts/v1/webfonts?key=AIzaSyB8Ua6XIfe-gqbkE8P3XL4spd0x8Ft7eWo&callback=SetFonts'; document.body.appendChild(script); WebFontConfig = { google: { families: ['ABeeZee', 'Abel', 'Abril Fatface', 'Aclonica', 'Acme', 'Actor', 'Adamina', 'Advent Pro', 'Aguafina Script', 'Akronim', 'Aladin', 'Aldrich', 'Alegreya', 'Alegreya SC', 'Alex Brush', 'Alfa Slab One', 'Alice', 'Alike', 'Alike Angular', 'Allan', 'Allerta', 'Allerta Stencil', 'Allura', 'Almendra', 'Almendra Display', 'Almendra SC', 'Amarante', 'Amaranth', 'Amatic SC', 'Amethysta', 'Anaheim', 'Andada', 'Andika', 'Angkor', 'Annie Use Your Telescope', 'Anonymous Pro', 'Antic', 'Antic Didone', 'Antic Slab', 'Anton', 'Arapey', 'Arbutus', 'Arbutus Slab', 'Architects Daughter', 'Archivo Black', 'Archivo Narrow', 'Arimo', 'Arizonia', 'Armata', 'Artifika', 'Arvo', 'Asap', 'Asset', 'Astloch', 'Asul', 'Atomic Age', 'Aubrey', 'Audiowide', 'Autour One', 'Average', 'Average Sans', 'Averia Gruesa Libre', 'Averia Libre', 'Averia Sans Libre', 'Averia Serif Libre', 'Bad Script', 'Balthazar', 'Bangers', 'Basic', 'Battambang', 'Baumans', 'Bayon', 'Belgrano', 'Belleza', 'BenchNine', 'Bentham', 'Berkshire Swash', 'Bevan', 'Bigelow Rules', 'Bigshot One', 'Bilbo', 'Bilbo Swash Caps', 'Bitter', 'Black Ops One', 'Bokor', 'Bonbon', 'Boogaloo', 'Bowlby One', 'Bowlby One SC', 'Brawler', 'Bree Serif', 'Bubblegum Sans', 'Bubbler One', 'Buda', 'Buenard', 'Butcherman', 'Butterfly Kids', 'Cabin', 'Cabin Condensed', 'Cabin Sketch', 'Caesar Dressing', 'Cagliostro', 'Calligraffitti', 'Cambo', 'Candal', 'Cantarell', 'Cantata One', 'Cantora One', 'Capriola', 'Cardo', 'Carme', 'Carrois Gothic', 'Carrois Gothic SC', 'Carter One', 'Caudex', 'Cedarville Cursive', 'Ceviche One', 'Changa One', 'Chango', 'Chau Philomene One', 'Chela One', 'Chelsea Market', 'Chenla', 'Cherry Cream Soda', 'Cherry Swash', 'Chewy', 'Chicle', 'Chivo', 'Cinzel', 'Cinzel Decorative', 'Clicker Script', 'Coda', 'Coda Caption', 'Codystar', 'Combo', 'Comfortaa', 'Coming Soon', 'Concert One', 'Condiment', 'Content', 'Contrail One', 'Convergence', 'Cookie', 'Copse', 'Corben', 'Courgette', 'Cousine', 'Coustard', 'Covered By Your Grace', 'Crafty Girls', 'Creepster', 'Crete Round', 'Crimson Text', 'Croissant One', 'Crushed', 'Cuprum', 'Cutive', 'Cutive Mono']} }; (function() { var wf = document.createElement('script'); wf.src = ('https:' == document.location.protocol ? 'https' : 'http') + '://ajax.googleapis.com/ajax/libs/webfont/1/webfont.js'; wf.type = 'text/javascript'; wf.async = 'true'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(wf, s); })(); $("#styleFont").change(function (){ var id =$('#styleFont option' +':selected').val(); $("#custom_text").css('font-family',id); }); </script> <style> #custom_text { font-family: Arial; resize: none; margin-top: 20px; width: 500px; } #styleFont { width: 100px; } </style> </head> <body> <select id="styleFont"> </select><br> <textarea id="custom_text"></textarea> </body> </html> How can i make it work. Whats the mistake i am making here.

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  • Ajax and using responseXML

    - by Banderdash
    Hello, I have a XML file that looks like this: <response> <library name="My Library"> <book id="1" checked-out="1"> <authors> <author>David Flanagan</author> </authors> <title>JavaScript: The Definitive Guide</title> <isbn-10>0596101996</isbn-10> </book> <book id="2" checked-out="1"> <authors> <author>John Resig</author> </authors> <title>Pro JavaScript Techniques (Pro)</title> <isbn-10>1590597273</isbn-10> </book> <book id="3" checked-out="0"> <authors> <author>Erich Gamma</author> <author>Richard Helm</author> <author>Ralph Johnson</author> <author>John M. Vlissides</author> </authors> <title>Design Patterns: Elements of Reusable Object-Oriented Software</title> <isbn-10>0201633612</isbn-10> </book> ... </library> </response> I'm using a simple JS script to, on click show all the titles of the books: <script type="text/javascript"> function loadXMLDoc() { if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 && xmlhttp.status==200) { xmlDoc=xmlhttp.responseXML; var txt=""; x=xmlDoc.getElementsByTagName("title"); for (i=0;i<x.length;i++) { txt=txt + x[i].childNodes[0].nodeValue + "<br />"; } document.getElementById("checkedIn").innerHTML=txt; } } xmlhttp.open("GET","ajax-response-data.xml",true); xmlhttp.send(); } </script> This works fine, as you can see here: http://clients.pixelbleed.net/ajax-test/ What I'd like to do is have the results post, on page load (not on click) into two separate DIV's depending on checked-out variable in the XML. So <book id="#" checked-out="1"> would post to the checkedIn div, <book id="#" checked-out="0"> posts to a checkedOut div. Also want to display the title and the author--would love any ideas as best method for accomplishing this. Apologize in advanced for the newbieness of my query.

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  • Blackberry XML Parsing Application not working

    - by Nirmal
    Hello All... I found one sample application from the Blackberry knowledgebase. From that application I have put that sample application on my eclipse plugin, and the code is as follows : import javax.microedition.io.*; import net.rim.device.api.ui.*; import net.rim.device.api.ui.component.*; import net.rim.device.api.ui.container.*; import net.rim.device.api.system.*; import net.rim.device.api.xml.parsers.*; import org.w3c.dom.*; import org.xml.sax.*; class XML_Parsing_Sample extends UiApplication { // creating a member variable for the MainScreen MainScreen _screen = new MainScreen(); // string variables to store the values of the XML document String _node, _element; Connection _connectionthread; public static void main(String arg[]) { XML_Parsing_Sample application = new XML_Parsing_Sample(); // create a new instance of the application // and start the application on the event thread application.enterEventDispatcher(); } public XML_Parsing_Sample() { _screen.setTitle("XML Parsing");// setting title _screen.add(new RichTextField("Requesting.....")); _screen.add(new SeparatorField()); pushScreen(_screen); // creating a screen // creating a connection thread to run in the background _connectionthread = new Connection(); _connectionthread.start();// starting the thread operation } public void updateField(String node, String element) { // receiving the parsed node and its value from the thread // and updating it here // so it can be displayed on the screen String title = "My App"; _screen.add(new RichTextField(node + " : " + element)); if (node.equals(title)) { _screen.add(new SeparatorField()); } } private class Connection extends Thread { public Connection() { super(); } public void run() { // define variables later used for parsing Document doc; StreamConnection conn; try { // providing the location of the XML file, // your address might be different conn = (StreamConnection) Connector .open("http://www.sufalamtech.com/demo/moviewebservice/Test.xml"); // next few lines creates variables to open a // stream, parse it, collect XML data and // extract the data which is required. // In this case they are elements, // node and the values of an element DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory .newInstance(); DocumentBuilder docBuilder = docBuilderFactory .newDocumentBuilder(); docBuilder.isValidating(); doc = docBuilder.parse(conn.openInputStream()); doc.getDocumentElement().normalize(); NodeList list = doc.getElementsByTagName("*"); _node = new String(); _element = new String(); // this "for" loop is used to parse through the // XML document and extract all elements and their // value, so they can be displayed on the device for (int i = 0; i < list.getLength(); i++) { Node value = list.item(i).getChildNodes().item(0); _node = list.item(i).getNodeName(); _element = value.getNodeValue(); updateField(_node, _element); }// end for }// end try // will catch any exception thrown by the XML parser catch (Exception e) { Dialog.alert("exception = " + e); } }// end connection function }// end connection class }// end XML_Parsing_Sample But when I am running this application, the simulator just showing me a Blank screen with label Requesting... Anybody help me out for this ? Thanks in advance...

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  • Google Chrome Frame and Facebook Javascript SDK - Cannot login

    - by Giannis Savvakis
    On the example below i have an html page with the javascript code needed to login to facebook. On the i have the Google Chrome Frame meta tag that makes the page run with google chrome frame. If you open this page with any browser the finish() callback runs normally. If you open it with Google Chrome Frame it never fires. So this means that every Facebook App that tries to login to gather user data cannot login. This happens if the page is opened with google frame. But even if i remove the meta tag so that the page can open with IE8 the page opens again with google chrome frame because Facebook opens google chrome frame by default. So because this is a Facebook app that runs inside an inside facebook.com it is forced to open with Google Chrome Frame! SERIOUS BUG! I have seen other people reporting it, someone has made a test facebook app also here: http://apps.facebook.com/gcftest/ appID and channelUrl are dummy in the example below. <html xmlns="http://www.w3.org/1999/xhtml" xmlns:fb="http://www.facebook.com/2008/fbml"> <head> <meta name="generator" content= "HTML Tidy for Linux/x86 (vers 11 February 2007), see www.w3.org" /> <meta charset="utf-8" /> <meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" /> <meta http-equiv="Pragma" content="no-cache" /> <meta http-equiv="Expires" content="0" /> <meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=IE8" /> <title>Facebook Login</title> <script type="text/javascript"> //<![CDATA[ // Load the SDK Asynchronously (function(d){ var js, id = 'facebook-jssdk', ref = d.getElementsByTagName('script')[0]; if (d.getElementById(id)) { return; } js = d.createElement('script'); js.id = id; js.async = true; js.src = "//connect.facebook.net/en_US/all.js"; ref.parentNode.insertBefore(js, ref); }(document)); var appID = '0000000000000'; var channelUrl = '//myhost/channel.html'; // Init the SDK upon load window.fbAsyncInit = function() { FB.init({ appId : appID, // App ID channelUrl : channelUrl, status : true, // check login status cookie : true, // enable cookies to allow the server to access the session xfbml : true // parse XFBML }); FB.Event.subscribe('auth.statusChange', function(response) { if(!response.authResponse) FB.login(finish, {scope: 'publish_actions,publish_stream'}); else finish(response); }); FB.getLoginStatus(finish); } function finish(response) { alert("Hello "+response.name); } //]]> </script> </head> <body> <h1>Facebook login</h1> <p>Do NOT close this window.</p> <p>please wait...</p> </body> </html>

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  • Creating an element and insertBefore is not working...

    - by sologhost
    Ok, I've been banging my head up against the wall on this and I have no clue why it isn't creating the element. Maybe something very small that I overlooked here. Basically, there is this Javascript code that is in a PHP document being outputted, like somewhere in the middle of when the page gets loaded, NOW, unfortunately it can't go into the header. Though I'm not sure that that is the problem anyways, but perhaps it is... hmmmmm. // Setting the variables needed to be set. echo ' <script type="text/javascript" src="' . $settings['default_theme_url'] . '/scripts/dpShoutbox.js"></script>'; echo ' <script type="text/javascript"> var refreshRate = ', $params['refresh_rate'], '; createEventListener(window); window.addEventListener("load", loadShouts, false); function loadShouts() { var alldivs = document.getElementsByTagName(\'div\'); var shoutCount = 0; var divName = "undefined"; for (var i = 0; i<alldivs.length; i++) { var is_counted = 0; divName = alldivs[i].getAttribute(\'name\'); if (divName.indexOf(\'dp_Reserved_Shoutbox\') < 0 && divName.indexOf(\'dp_Reserved_Counted\') < 0) continue; else if(divName == "undefined") continue; else { if (divName.indexOf(\'dp_Reserved_Counted\') == 0) { is_counted = 0; shoutCount++; continue; } else { shoutCount++; is_counted = 1; } } // Empty out the name attr. alldivs[i].name = \'dp_Reserved_Counted\'; var shoutId = \'shoutbox_area\' + shoutCount; // Build the div to be inserted. var shoutHolder = document.createElement(\'div\'); shoutHolder.setAttribute(\'id\', [shoutId]); shoutHolder.setAttribute(\'class\', \'dp_control_flow\'); shoutHolder.style.cssText = \'padding-right: 6px;\'; alldivs[i].parentNode.insertBefore(shoutHolder, alldivs[i]); if (is_counted == 1) { startShouts(refreshRate, shoutId); break; } } } </script>'; Also, I'm sure the other functions that I'm linking to within these functions work just fine. The problem here is that within this function, the div never gets created at all and I can't understand why? Furthermore Firefox, FireBug is telling me that the variable divName is undefined, even though I have attempted to take care of this within the function, though not sure why. Anyways, I need the created div element to be inserted just before the following HTML: echo ' <div name="dp_Reserved_Shoutbox" style="padding-bottom: 9px;"></div>'; I'm using name here instead of id because I don't want duplicate id values which is why I'm changing the name value and incrementing, since this function may be called more than 1 time. For example if there are 3 shoutboxes on the same page (Don't ask why...lol), I need to skip the other names that I already changed to "dp_Reserved_Counted", which I believe I am doing correctly. In any case, if I could I would place this into the header and have it called just once, but this isn't possible as these are loaded and no way of telling which one's they are, so it's directly hard-coded into the actual output on the page of where the shoutbox is within the HTML. Basically, not sure if that is the problem or not, but there must be some sort of work-around, unless the problem is within my code above... arrg Please help me. Thanks :)

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  • xPath insert before and after - With DOM and PHP

    - by Jens Törnell
    I need to add a class to a HTML structure. My class is called "container" and should start right after div/ul/li (the child of ul and its simblings, not grandchilds) and should end right before the closing of the same element. My whole code looks like this: <?php $content = ' <div class="sidebar-1"> <ul> <li> <h4>Title</h4> <ul> <li><a href="http://www.test.com">Test</a></li> <li><a href="http://www.test.com">Test</a></li> </ul> </li> <li> <p>Paragraf</p> </li> <li> <h4>New title</h4> <ul> <li>Some text</li> <li>Some text åäö</li> </ul> </li> </ul> </div> '; $doc = new DOMDocument(); $doc->loadHTML($content); $x = new DOMXPath($doc); $start_text = '<div class="container">'; $end_text = '</div>'; foreach($x->query('//div/ul/li') as $anchor) { $anchor->insertBefore(new DOMText($start_text),$anchor->firstChild); } echo $doc->saveXML($doc->getElementsByTagName('ul')->item(0)); ?> It works as far as i can add the class opening but not the closing element. I also get strange encoding doing this. I want the output to be the same encoding as the input. The result should be <div class="sidebar-1"> <ul> <li> <div class="content"> <h4>Title</h4> <ul> <li><a href="http://www.test.com">Test</a></li> <li><a href="http://www.test.com">Test</a></li> </ul> </div> </li> <li> <div class="content"> <p>Paragraf</p> </div> </li> <li> <div class="content"> <h4>New title</h4> <ul> <li>Some text</li> <li>Some text åäö</li> </ul> </div> </li> </ul> </div>

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  • How can I Add newer Data to the start of the xml file (Example inside)

    - by Ofear
    Hi All! After alot of work i finish to make a xml reader and writer... but my problem is that i want the newer data that i insert using my form will be added to the top of the xml file. and not in the bottom.. let me show you an example: this is the XML file: <?xml version="1.0" encoding="utf-8"?> <events> <record> <event>old event</event> <eventDate>1/1/2009</eventDate> <desc>old desc</desc> </record> <record> <event>newer event</event> <eventDate>12/12/2011</eventDate> <desc>newer desc</desc> </record> </events> now.. I want the XML file to be like this: newer data and then old data <?xml version="1.0" encoding="utf-8"?> <events> <record> <event>newer event</event> <eventDate>12/12/2011</eventDate> <desc>newer desc</desc> </record> <record> <event>old event</event> <eventDate>1/1/2009</eventDate> <desc>old desc</desc> </record> </events> This is my add.php (the file that get the POST information from the Form in the main.html : <?php $record = array( 'event' => $_POST['event'], 'eventDate' => $_POST['eventDate'], 'desc' => $_POST['desc'], ); $doc = new DOMDocument(); $doc->load( 'events.xml' ); $doc->formatOutput = true; $r = $doc->getElementsByTagName("events")->item(0); $b = $doc->createElement("record"); $event = $doc->createElement("event"); $event->appendChild( $doc->createTextNode( $record["event"] ) ); $b->appendChild( $event ); $eventDate = $doc->createElement("eventDate"); $eventDate->appendChild( $doc->createTextNode( $record["eventDate"] ) ); $b->appendChild( $eventDate ); $desc = $doc->createElement("desc"); $desc->appendChild( $doc->createTextNode( $record["desc"] ) ); $b->appendChild( $desc ); $r->appendChild( $b ); $doc->save("events.xml"); header("Location: {$_SERVER['HTTP_REFERER']}"); ?> Where do i need to edit to be able to make the *xml as i want?*

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  • Jquery, XML and Google Map

    - by EXPennD
    Hi, I'm integrating a Google Map in my website that user could add some thumbnails and details of their own house. Here's a code preview of what I want to happen. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> Jquery and Google Map // var locations = {}; function load() { var map = new GMap2(document.getElementById("map")); map.setCenter(new GLatLng(47.614495, -122.341861), 13); GDownloadUrl("markerdata.xml", function(data) { var xml = GXml.parse(data); var markers = xml.documentElement.getElementsByTagName("marker"); for (var i = 0; i < markers.length; i++) { var name = markers[i].getAttribute("name"); var address = markers[i].getAttribute("address"); var type = markers[i].getAttribute("type"); var latlng = new GLatLng(parseFloat(markers[i].getAttribute("lat")), parseFloat(markers[i].getAttribute("lng"))); var store = {latlng: latlng, name: name, address: address, type: type}; var latlngHash = (latlng.lat().toFixed(6) + "" + latlng.lng().toFixed(6)); latlngHash = latlngHash.replace(".","").replace(".", "").replace("-",""); if (locations[latlngHash] == null) { locations[latlngHash] = [] } locations[latlngHash].push(store); } for (var latlngHash in locations) { var stores = locations[latlngHash]; if (stores.length > 1) { map.addOverlay(createClusteredMarker(stores)); } else { map.addOverlay(createMarker(stores)); } } }); } function createMarker(stores) { var store = stores[0]; var newIcon = MapIconMaker.createMarkerIcon({width: 32, height: 32, primaryColor: "#00ff00"}); var marker = new GMarker(store.latlng, {icon: newIcon}); var html = "<b>" + store.name + "</b> <br/>" + store.address; GEvent.addListener(marker, 'click', function() { marker.openInfoWindowHtml(html); }); return marker; } function createClusteredMarker(stores) { var newIcon = MapIconMaker.createMarkerIcon({width: 44, height: 44, primaryColor: "#00ff00"}); var marker = new GMarker(stores[0].latlng, {icon: newIcon}); var html = ""; for (var i = 0; i < stores.length; i++) { html += "<b>" + stores[i].name + "</b> <br/>" + stores[i].address + "<br/>"; } GEvent.addListener(marker, 'click', function() { marker.openInfoWindowHtml(html); }); return marker; } //]]> description I want this feature to be fully interactive. If possible user can drag and drop a marker to the location on the Google map and the description field would be enabled after adding the marker so user could add details and submit it. Also here's my current situation. The reason why I want it to be done in XML is the Content Management System that I currently use for this project don't allow me to add Database and Php scripts. The only thing that I have access is I could add new HTML on the BODY section and also External Javascript on the HEAD section. Sorry about the way I write it, it sounds like demanding. Its because I'm still learning Jquery. Thanks everyone!

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  • How to use XSLT to tag specific nodes with unique, sequential, increasing integer ids?

    - by ~otakuj462
    Hi, I'm trying to use XSLT to transform a document by tagging a group of XML nodes with integer ids, starting at 0, and increasing by one for each node in the group. The XML passed into the stylesheet should be echoed out, but augmented to include this extra information. Just to be clear about what I am talking about, here is how this transformation would be expressed using DOM: states = document.getElementsByTagName("state"); for( i = 0; i < states.length; i++){ states.stateNum = i; } This is very simple with DOM, but I'm having much more trouble doing this with XSLT. The current strategy I've devised has been to start with the identity transformation, then create a global variable which selects and stores all of the nodes that I wish to number. I then create a template that matches that kind of node. The idea, then, is that in the template, I would look up the matched node's position in the global variable nodelist, which would give me a unique number that I could then set as an attribute. The problem with this approach is that the position function can only be used with the context node, so something like the following is illegal: <template match="state"> <variable name="stateId" select="@id"/> <variable name="uniqueStateNum" select="$globalVariable[@id = $stateId]/position()"/> </template> The same is true for the following: <template match="state"> <variable name="stateId" select="@id" <variable name="stateNum" select="position($globalVariable[@id = $stateId])/"/> </template> In order to use position() to look up the position of an element in $globalVariable, the context node must be changed. I have found a solution, but it is highly suboptimal. Basically, in the template, I use for-each to iterate through the global variable. For-each changes the context node, so this allows me to use position() in the way I described. The problem is that this turns what would normally be an O(n) operation into an O(n^2) operation, where n is the length of the nodelist, as this require iterating through the whole list whenever the template is matched. I think that there must be a more elegant solution. Altogether, here is my current (slightly simplified) xslt stylesheet: <?xml version="1.0"?> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:s="http://www.w3.org/2005/07/scxml" xmlns="http://www.w3.org/2005/07/scxml" xmlns:c="http://msdl.cs.mcgill.ca/" version="1.0"> <xsl:output method="xml"/> <!-- we copy them, so that we can use their positions as identifiers --> <xsl:variable name="states" select="//s:state" /> <!-- identity transform --> <xsl:template match="@*|node()"> <xsl:copy> <xsl:apply-templates select="@*|node()"/> </xsl:copy> </xsl:template> <xsl:template match="s:state"> <xsl:variable name="stateId"> <xsl:value-of select="@id"/> </xsl:variable> <xsl:copy> <xsl:apply-templates select="@*"/> <xsl:for-each select="$states"> <xsl:if test="@id = $stateId"> <xsl:attribute name="stateNum" namespace="http://msdl.cs.mcgill.ca/"> <xsl:value-of select="position()"/> </xsl:attribute> </xsl:if> </xsl:for-each> <xsl:apply-templates select="node()"/> </xsl:copy> </xsl:template> </xsl:stylesheet> I'd appreciate any advice anyone can offer. Thanks.

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  • Java saying XML Document Not Well Formed

    - by Pyroclastic
    Hey all. Java's XML parser seems to be thinking that my XML document is not well formed following the root element, but I've validated it with several tools and they all disagree. It's probably an error in my code rather than in the document itself, I'd really appreciate any help you all could offer me. Here is my Java method: private void loadFromXMLFile(File f) throws ParserConfigurationException, IOException, SAXException { File file = f; DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); DocumentBuilder db; Document doc = null; db = dbf.newDocumentBuilder(); doc = db.parse(file); doc.getDocumentElement().normalize(); String desc = ""; String due = ""; String comment = ""; NodeList tasksList = doc.getElementsByTagName("task"); for (int i = 0; i < tasksList.getLength(); i++) { NodeList attributes = tasksList.item(i).getChildNodes(); for (int j = 0; i < attributes.getLength(); j++) { Node attribute = attributes.item(i); if (attribute.getNodeName() == "description") { desc = attribute.getTextContent(); } if (attribute.getNodeName() == "due") { due = attribute.getTextContent(); } if (attribute.getNodeName() == "comment") { comment = attribute.getTextContent(); } tasks.add(new Task(desc, due, comment)); } desc = ""; due = ""; comment = ""; } } And here is the XML file I'm trying to load: <?xml version="1.0"?> <tasklist> <task> <description>Task 1</description> <due>Due date 1</due> <comment>Comment 1</comment> <completed>false</completed> </task> <task> <description>Task 2</description> <due>Due date 2</due> <comment>Comment 2</comment> <completed>false</completed> </task> <task> <description>Task 3</description> <due>Due date 3</due> <comment>Comment 3</comment> <completed>true</completed> </task> </tasklist> And here is the error message java is throwing for me: run: [Fatal Error] tasks.xml:28:3: The markup in the document following the root element must be well-formed. May 17, 2010 6:07:02 PM todolist.TodoListGUI SEVERE: null org.xml.sax.SAXParseException: The markup in the document following the root element must be well-formed. at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:239) at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:283) at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:208) at todolist.TodoListGUI.loadFromXMLFile(TodoListGUI.java:199) at todolist.TodoListGUI.(TodoListGUI.java:42) at todolist.Main.main(Main.java:25) BUILD SUCCESSFUL (total time: 19 seconds) For reference TodoListGUI.java:199 is doc = db.parse(file); If context is helpful to anyone here, I'm trying to write a simple GUI application to manage a todo list that can read and write to and from XML files defining the tasks. Any advice is appreciated!

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  • Delete one row in html table marqued by a check box with javascript

    - by kawtousse
    Hi everyone, I build dynamically my HTML table from database like that: for(i=0;i< nomCols.length;i++) { retour.append(("<td bgcolor=#0066CC>")+ nomCols[i] + "</td>"); } retour.append("</tr>"); retour.append("<tr>"); try { s= HibernateUtil.currentSession(); tx=s.beginTransaction(); Query query = s.createQuery(HQL_QUERY); // inner join projecttasks.ProjectTypeCode as projects");// inner join projecttasks.taskCode as task inner join projects.projectCode as wa;"); for(Iterator it=query.iterate();it.hasNext();) { if(it.hasNext()){ Dailytimesheet object=(Dailytimesheet)it.next(); retour.append("<td><input type=checkbox name=cb id=cb /> </td>"); retour.append("<td>" +object.getTrackingDate() + "</td>"); retour.append("<td>" +object.getActivity() + "</td>"); retour.append("<td>" +object.getProjectCode() + "</td>"); retour.append("<td>" +object.getWAName() + "</td>"); retour.append("<td>" +object.getTaskCode() +"</td>"); retour.append("<td>" +object.getTimeSpent() + "</td>"); retour.append("<td>" +object.getPercentTaskComplete() + "</td>"); } retour.append("</tr>"); } //terminer la table. retour.append (""); tx.commit(); } catch (HibernateException e) { retour.append ("</table><H1>ERREUR:</H1>" +e.getMessage()); e.printStackTrace(); } return retour; } so I want that all check boxes having the same id. When trying to delete one row in my table witch have the check box checked i found a problem with that. Iam using simple javascript like this: function DeleteARow() { //var Rows = document.getElementById('sheet').getElementsByTagName('tr'); //var RowsCount = Rows.length; //alert('Your table has ' + RowsCount + ' rows.'); if (document.getElementById('cb').checked==true) { document.getElementById('cb').parentNode('td').parentNode('tr').remove(); }} It doesn't work approperly and only the first row have the id 'cb'. Many thanks for your help.

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  • Loading jQuery Consistently in a .NET Web App

    - by Rick Strahl
    One thing that frequently comes up in discussions when using jQuery is how to best load the jQuery library (as well as other commonly used and updated libraries) in a Web application. Specifically the issue is the one of versioning and making sure that you can easily update and switch versions of script files with application wide settings in one place and having your script usage reflect those settings in the entire application on all pages that use the script. Although I use jQuery as an example here, the same concepts can be applied to any script library - for example in my Web libraries I use the same approach for jQuery.ui and my own internal jQuery support library. The concepts used here can be applied both in WebForms and MVC. Loading jQuery Properly From CDN Before we look at a generic way to load jQuery via some server logic, let me first point out my preferred way to embed jQuery into the page. I use the Google CDN to load jQuery and then use a fallback URL to handle the offline or no Internet connection scenario. Why use a CDN? CDN links tend to be loaded more quickly since they are very likely to be cached in user's browsers already as jQuery CDN is used by many, many sites on the Web. Using a CDN also removes load from your Web server and puts the load bearing on the CDN provider - in this case Google - rather than on your Web site. On the downside, CDN links gives the provider (Google, Microsoft) yet another way to track users through their Web usage. Here's how I use jQuery CDN plus a fallback link on my WebLog for example: <!DOCTYPE HTML> <html> <head> <script src="//ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.min.js"></script> <script> if (typeof (jQuery) == 'undefined') document.write(unescape("%3Cscript " + "src='/Weblog/wwSC.axd?r=Westwind.Web.Controls.Resources.jquery.js' %3E%3C/script%3E")); </script> <title>Rick Strahl's Web Log</title> ... </head>   You can see that the CDN is referenced first, followed by a small script block that checks to see whether jQuery was loaded (jQuery object exists). If it didn't load another script reference is added to the document dynamically pointing to a backup URL. In this case my backup URL points at a WebResource in my Westwind.Web  assembly, but the URL can also be local script like src="/scripts/jquery.min.js". Important: Use the proper Protocol/Scheme for  for CDN Urls [updated based on comments] If you're using a CDN to load an external script resource you should always make sure that the script is loaded with the same protocol as the parent page to avoid mixed content warnings by the browser. You don't want to load a script link to an http:// resource when you're on an https:// page. The easiest way to use this is by using a protocol relative URL: <script src="//ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.min.js"></script> which is an easy way to load resources from other domains. This URL syntax will automatically use the parent page's protocol (or more correctly scheme). As long as the remote domains support both http:// and https:// access this should work. BTW this also works in CSS (with some limitations) and links. BTW, I didn't know about this until it was pointed out in the comments. This is a very useful feature for many things - ah the benefits of my blog to myself :-) Version Numbers When you use a CDN you notice that you have to reference a specific version of jQuery. When using local files you may not have to do this as you can rename your private copy of jQuery.js, but for CDN the references are always versioned. The version number is of course very important to ensure you getting the version you have tested with, but it's also important to the provider because it ensures that cached content is always correct. If an existing file was updated the updates might take a very long time to get past the locally cached content and won't refresh properly. The version number ensures you get the right version and not some cached content that has been changed but not updated in your cache. On the other hand version numbers also mean that once you decide to use a new version of the script you now have to change all your script references in your pages. Depending on whether you use some sort of master/layout page or not this may or may not be easy in your application. Even if you do use master/layout pages, chances are that you probably have a few of them and at the very least all of those have to be updated for the scripts. If you use individual pages for all content this issue then spreads to all of your pages. Search and Replace in Files will do the trick, but it's still something that's easy to forget and worry about. Personaly I think it makes sense to have a single place where you can specify common script libraries that you want to load and more importantly which versions thereof and where they are loaded from. Loading Scripts via Server Code Script loading has always been important to me and as long as I can remember I've always built some custom script loading routines into my Web frameworks. WebForms makes this fairly easy because it has a reasonably useful script manager (ClientScriptManager and the ScriptManager) which allow injecting script into the page easily from anywhere in the Page cycle. What's nice about these components is that they allow scripts to be injected by controls so components can wrap up complex script/resource dependencies more easily without having to require long lists of CSS/Scripts/Image includes. In MVC or pure script driven applications like Razor WebPages  the process is more raw, requiring you to embed script references in the right place. But its also more immediate - it lets you know exactly which versions of scripts to use because you have to manually embed them. In WebForms with different controls loading resources this often can get confusing because it's quite possible to load multiple versions of the same script library into a page, the results of which are less than optimal… In this post I look a simple routine that embeds jQuery into the page based on a few application wide configuration settings. It returns only a string of the script tags that can be manually embedded into a Page template. It's a small function that merely a string of the script tags shown at the begging of this post along with some options on how that string is comprised. You'll be able to specify in one place which version loads and then all places where the help function is used will automatically reflect this selection. Options allow specification of the jQuery CDN Url, the fallback Url and where jQuery should be loaded from (script folder, Resource or CDN in my case). While this is specific to jQuery you can apply this to other resources as well. For example I use a similar approach with jQuery.ui as well using practically the same semantics. Providing Resources in ControlResources In my Westwind.Web Web utility library I have a class called ControlResources which is responsible for holding resource Urls, resource IDs and string contants that reference those resource IDs. The library also provides a few helper methods for loading common scriptscripts into a Web page. There are specific versions for WebForms which use the ClientScriptManager/ScriptManager and script link methods that can be used in any .NET technology that can embed an expression into the output template (or code for that matter). The ControlResources class contains mostly static content - references to resources mostly. But it also contains a few static properties that configure script loading: A Script LoadMode (CDN, Resource, or script url) A default CDN Url A fallback url They are  static properties in the ControlResources class: public class ControlResources { /// <summary> /// Determines what location jQuery is loaded from /// </summary> public static JQueryLoadModes jQueryLoadMode = JQueryLoadModes.ContentDeliveryNetwork; /// <summary> /// jQuery CDN Url on Google /// </summary> public static string jQueryCdnUrl = "//ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.min.js"; /// <summary> /// jQuery CDN Url on Google /// </summary> public static string jQueryUiCdnUrl = "//ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/jquery-ui.min.js"; /// <summary> /// jQuery UI fallback Url if CDN is unavailable or WebResource is used /// Note: The file needs to exist and hold the minimized version of jQuery ui /// </summary> public static string jQueryUiLocalFallbackUrl = "~/scripts/jquery-ui.min.js"; } These static properties are fixed values that can be changed at application startup to reflect your preferences. Since they're static they are application wide settings and respected across the entire Web application running. It's best to set these default in Application_Init or similar startup code if you need to change them for your application: protected void Application_Start(object sender, EventArgs e) { // Force jQuery to be loaded off Google Content Network ControlResources.jQueryLoadMode = JQueryLoadModes.ContentDeliveryNetwork; // Allow overriding of the Cdn url ControlResources.jQueryCdnUrl = "http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"; // Route to our own internal handler App.OnApplicationStart(); } With these basic settings in place you can then embed expressions into a page easily. In WebForms use: <!DOCTYPE html> <html> <head runat="server"> <%= ControlResources.jQueryLink() %> <script src="scripts/ww.jquery.min.js"></script> </head> In Razor use: <!DOCTYPE html> <html> <head> @Html.Raw(ControlResources.jQueryLink()) <script src="scripts/ww.jquery.min.js"></script> </head> Note that in Razor you need to use @Html.Raw() to force the string NOT to escape. Razor by default escapes string results and this ensures that the HTML content is properly expanded as raw HTML text. Both the WebForms and Razor output produce: <!DOCTYPE html> <html> <head> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js" type="text/javascript"></script> <script type="text/javascript"> if (typeof (jQuery) == 'undefined') document.write(unescape("%3Cscript src='/WestWindWebToolkitWeb/WebResource.axd?d=-b6oWzgbpGb8uTaHDrCMv59VSmGhilZP5_T_B8anpGx7X-PmW_1eu1KoHDvox-XHqA1EEb-Tl2YAP3bBeebGN65tv-7-yAimtG4ZnoWH633pExpJor8Qp1aKbk-KQWSoNfRC7rQJHXVP4tC0reYzVw2&t=634535391996872492' type='text/javascript'%3E%3C/script%3E"));</script> <script src="scripts/ww.jquery.min.js"></script> </head> which produces the desired effect for both CDN load and fallback URL. The implementation of jQueryLink is pretty basic of course: /// <summary> /// Inserts a script link to load jQuery into the page based on the jQueryLoadModes settings /// of this class. Default load is by CDN plus WebResource fallback /// </summary> /// <param name="url"> /// An optional explicit URL to load jQuery from. Url is resolved. /// When specified no fallback is applied /// </param> /// <returns>full script tag and fallback script for jQuery to load</returns> public static string jQueryLink(JQueryLoadModes jQueryLoadMode = JQueryLoadModes.Default, string url = null) { string jQueryUrl = string.Empty; string fallbackScript = string.Empty; if (jQueryLoadMode == JQueryLoadModes.Default) jQueryLoadMode = ControlResources.jQueryLoadMode; if (!string.IsNullOrEmpty(url)) jQueryUrl = WebUtils.ResolveUrl(url); else if (jQueryLoadMode == JQueryLoadModes.WebResource) { Page page = new Page(); jQueryUrl = page.ClientScript.GetWebResourceUrl(typeof(ControlResources), ControlResources.JQUERY_SCRIPT_RESOURCE); } else if (jQueryLoadMode == JQueryLoadModes.ContentDeliveryNetwork) { jQueryUrl = ControlResources.jQueryCdnUrl; if (!string.IsNullOrEmpty(jQueryCdnUrl)) { // check if jquery loaded - if it didn't we're not online and use WebResource fallbackScript = @"<script type=""text/javascript"">if (typeof(jQuery) == 'undefined') document.write(unescape(""%3Cscript src='{0}' type='text/javascript'%3E%3C/script%3E""));</script>"; fallbackScript = string.Format(fallbackScript, WebUtils.ResolveUrl(ControlResources.jQueryCdnFallbackUrl)); } } string output = "<script src=\"" + jQueryUrl + "\" type=\"text/javascript\"></script>"; // add in the CDN fallback script code if (!string.IsNullOrEmpty(fallbackScript)) output += "\r\n" + fallbackScript + "\r\n"; return output; } There's one dependency here on WebUtils.ResolveUrl() which resolves Urls without access to a Page/Control (another one of those features that should be in the runtime, not in the WebForms or MVC engine). You can see there's only a little bit of logic in this code that deals with potentially different load modes. I can load scripts from a Url, WebResources or - my preferred way - from CDN. Based on the static settings the scripts to embed are composed to be returned as simple string <script> tag(s). I find this extremely useful especially when I'm not connected to the internet so that I can quickly swap in a local jQuery resource instead of loading from CDN. While CDN loading with the fallback works it can be a bit slow as the CDN is probed first before the fallback kicks in. Switching quickly in one place makes this trivial. It also makes it very easy once a new version of jQuery rolls around to move up to the new version and ensure that all pages are using the new version immediately. I'm not trying to make this out as 'the' definite way to load your resources, but rather provide it here as a pointer so you can maybe apply your own logic to determine where scripts come from and how they load. You could even automate this some more by using configuration settings or reading the locations/preferences out of some sort of data/metadata store that can be dynamically updated instead via recompilation. FWIW, I use a very similar approach for loading jQuery UI and my own ww.jquery library - the same concept can be applied to any kind of script you might be loading from different locations. Hopefully some of you find this a useful addition to your toolset. Resources Google CDN for jQuery Full ControlResources Source Code ControlResource Documentation Westwind.Web NuGet This method is part of the Westwind.Web library of the West Wind Web Toolkit or you can grab the Web library from NuGet and add to your Visual Studio project. This package includes a host of Web related utilities and script support features. © Rick Strahl, West Wind Technologies, 2005-2011Posted in ASP.NET  jQuery   Tweet (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

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