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  • how to get varchar as byte[] using DataReader in Ado.Net?

    - by Krishna
    how to get varchar as byte[] data using DataReader in Ado.Net? We have tried the following code. if (!objDataReader.IsDBNull(i)) { long len = objDataReader.GetBytes(i, 0, null, 0, 0); byte[] buffer = new byte[len]; objDataReader.GetBytes(i, 0, buffer, 0, (int)len); } But the above code gives the error ("Unable to cast object of type 'System.String' to type 'System.Byte[]'.")

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  • HttpWebRequest possibly slowing website

    - by Steven Smith
    Using Visual studio 2012, C#.net 4.5 , SQL Server 2008, Feefo, Nopcommerce Hey guys I have Recently implemented a new review service into a current site we have. When the change went live the first day all worked fine. Since then though the sending of sales to Feefo hasnt been working, There are no logs either of anything going wrong. In the OrderProcessingService.cs in Nop Commerce's Service, i call a HttpWebrequest when an order has been confirmed as completed. Here is the code. var email = HttpUtility.UrlEncode(order.Customer.Email.ToString()); var name = HttpUtility.UrlEncode(order.Customer.GetFullName().ToString()); var description = HttpUtility.UrlEncode(productVariant.ProductVariant.Product.MetaDescription != null ? productVariant.ProductVariant.Product.MetaDescription.ToString() : "product"); var orderRef = HttpUtility.UrlEncode(order.Id.ToString()); var productLink = HttpUtility.UrlEncode(string.Format("myurl/p/{0}/{1}", productVariant.ProductVariant.ProductId, productVariant.ProductVariant.Name.Replace(" ", "-"))); string itemRef = ""; try { itemRef = HttpUtility.UrlEncode(productVariant.ProductVariant.ProductId.ToString()); } catch { itemRef = "0"; } var url = string.Format("feefo Url", login, password,email,name,description,orderRef,productLink,itemRef); var request = (HttpWebRequest)WebRequest.Create(url); request.KeepAlive = false; request.Timeout = 5000; request.Proxy = null; using (var response = (HttpWebResponse)request.GetResponse()) { if (response.StatusDescription == "OK") { var stream = response.GetResponseStream(); if(stream != null) { using (var reader = new StreamReader(stream)) { var content = reader.ReadToEnd(); } } } } So as you can see its a simple webrequest that is processed on an order, and all product variants are sent to feefo. Now: this hasnt been happening all week since the 15th (day of the implementation) the site has been grinding to a halt recently. The stream and reader in the the var content is there for debugging. Im wondering does the code redflag anything to you that could relate to the process of website? Also note i have run some SQL statements to see if there is any deadlocks or large escalations, so far seems fine, Logs have also been fine just the usual logging of Bots. Any help would be much appreciated! EDIT: also note that this code is in a method that is called and wrapped in A try catch UPDATE: well forget about the "not sending", thats because i was just told my code was rolled back last week

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  • How to add ACTIVE DOMAIN user to Sharepoint group

    - by standley-nguyen
    Hi all. I got an exception when executing this snippet code SPSecurity.RunWithElevatedPrivileges(delegate() { using (SPSite site = new SPSite(siteUrl.Trim())) { using (SPWeb web = site.OpenWeb()) { try { web.AllowUnsafeUpdates = true; SPUser spUser = web.AllUsers[userName]; if (spUser != null) { SPGroup spGroup = web.Groups[groupName]; if (spGroup != null) spGroup.AddUser(spUser); } } catch (Exception ex) { this.TraceData(LogLevel.Error, "Error at function Named [AddUserToSPGroupWidget.AddUserToGroup] . With Error Message: " + ex.ToString()); } finally { web.AllowUnsafeUpdates = false; } } } }); PLease guide me. Thanks in advance.

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  • How to create own dotnet obfuscator

    - by Rajesh Rolen- DotNet Developer
    I know that dot net dlls and exe contain their assemblies with them so every body can extract code from it. so to tell me how can i create my own dotnet obfuscator and tell me if their exist any other way to protect my application to deassemble. and plez dont give me link of any paid obfuscator. i would prefer code sample in c# or vb.net

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  • jQuery tablesorter - loss of functionality after AJAX call

    - by Nick
    I have recently been experimenting with the tablesorter plugin for jQuery. I have successfully got it up and running in once instance, and am very impressed. However, I have tried to apply the tablesorter to a different table, only to encounter some difficulties... Basically the table causing a problem has a <ul> above it which acts as a set of tabs for the table. so if you click one of these tabs, an AJAX call is made and the table is repopulated with the rows relevant to the specific tab clicked. When the page initially loads (i.e. before a tab has been clicked) the tablesorter functionality works exactly as expected. But when a tab is clicked and the table repopulated, the functionality disappears, rendering it without the sortable feature. Even if you go back to the original tab, after clicking another, the functionality does not return - the only way to do so is a physical refresh of the page in the browser. I have seen a solution which seems similar to my problem on this site, and someone recommends using the jQuery plugin, livequery. I have tried this but to no avail :-( If someone has any suggestions I would be most appreciative. I can post code snippets if it would help (though I know the instantiation code for tablesorter is fine as it works on tables with no tabs - so it's definitely not that!) EDIT: As requested, here are some code snippets: The table being sorted is <table id="#sortableTable#">..</table>, the instantiation code for tablesorter I am using is: $(document).ready(function() { $("#sortableTable").tablesorter( { headers: //disable any headers not worthy of sorting! { 0: { sorter: false }, 5: { sorter: false } }, sortMultiSortKey: 'ctrlKey', debug:true, widgets: ['zebra'] }); }); And I tried to rig up livequery as follows: $("#sortableTable").livequery(function(){ $(this).tablesorter(); }); This has not helped though... I am not sure whether I should use the id of the table with livequery as it is the click on the <ul> I should be responding to, which is of course not part of the table itself. I have tried a number of variations in the hope that one of them will help, but to no avail :-(

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  • Compressing as GZip WCF requests (SOAP and REST)

    - by Joannes Vermorel
    I have a .NET 3.5 web app hosted on Windows Azure that exposes several WCF endpoints (both SOAP and REST). The endpoints typically receive 100x more data than they serve (lot of data is upload, much fewer is downloaded). Hence, I am willing to take advantage from HTTP GZip compression but not from the server viewpoint, but rather from the client viewpoint, sending compressed requests (returning compressed responses would be fine, but won't bring much gain anyway). Here is the little C# snippet used on the client side to activate WCF: var binding = new BasicHttpBinding(); var address = new EndpointAddress(endPoint); _factory = new ChannelFactory<IMyApi>(binding, address); _channel = _factory.CreateChannel(); Any idea how to adjust the behavior so that compressed HTTP requests can be made?

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  • GPC Polygon Initialization

    - by Dan
    I am using the GPC Polygon Clipping lib (http://www.cs.man.ac.uk/~toby/alan/software) and want to create a polygon programatically. I only see code for how to create one from a file. How can I do the initialization in my code?

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  • 'Lexical' scoping of type parameters in C#

    - by leppie
    I have 2 scenarios. This fails: class F<X> { public X X { get; set; } } error CS0102: The type 'F' already contains a definition for 'X' This works: class F<X> { class G { public X X { get; set; } } } The only logical explanation is that in the second snippet the type parameter X is out of scope, which is not true... Why should a type parameter affect my definitions in a type? IMO, for consistency, either both should work or neither should work. Any other ideas? PS: I call it 'lexical', but it probably is not not the correct term.

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  • Flurry's not collecting any data from my iPhone-app

    - by swalkner
    Hi all, I want to use Flurry to collect some statistics, so I registered and created an app in Flurry. Then, I put the following code in my appDidFinishLaunching: [FlurryAPI startSession:@"code here"]; Afterwards, I installed the app on my iPhone and ran it - but I don't see any data online. Am I missing something? And is data also collected from the simulator? Thanks a lot, Stefan

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  • readUTF timeout

    - by Hassan Voyeau
    I am getting a timeout with the following code at readUTF. Any idea why? hc = (HttpConnection) Connector.open("http://twitter.com/statuses/user_timeline/" + username + ".json"); int rc = hc.getResponseCode(); if (rc != HttpConnection.HTTP_OK) { throw new IOException("HTTP response code: " + rc); } DataInputStream dataInputStream = hc.openDataInputStream(); String list = dataInputStream.readUTF();

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  • Flash (ActionScript 3): how to build a remoting application

    - by Lothar
    Hi, I'm looking for examples (code) of applications that uses Flash (NOT Flex) and Remoting classes for ActionScript 3 (NetConnection). Once there was ARP, a repository of code of this kind, but it seems there is not anymore. I'm trying to figure out how to build an applications that makes heavy use of calls to WebORB and responders. I need an architect point of view, NOT a sample of communication between parts, but a real world scenario.

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  • Migrating from hand-written persistence layer to ORM

    - by Sergey Mikhanov
    Hi community, We are currently evaluating options for migrating from hand-written persistence layer to ORM. We have a bunch of legacy persistent objects (~200), that implement simple interface like this: interface JDBC { public long getId(); public void setId(long id); public void retrieve(); public void setDataSource(DataSource ds); } When retrieve() is called, object populates itself by issuing handwritten SQL queries to the connection provided using the ID it received in the setter (this usually is the only parameter to the query). It manages its statements, result sets, etc itself. Some of the objects have special flavors of retrive() method, like retrieveByName(), in this case a different SQL is issued. Queries could be quite complex, we often join several tables to populate the sets representing relations to other objects, sometimes join queries are issued on-demand in the specific getter (lazy loading). So basically, we have implemented most of the ORM's functionality manually. The reason for that was performance. We have very strong requirements for speed, and back in 2005 (when this code was written) performance tests has shown that none of mainstream ORMs were that fast as hand-written SQL. The problems we are facing now that make us think of ORM are: Most of the paths in this code are well-tested and are stable. However, some rarely-used code is prone to result set and connection leaks that are very hard to detect We are currently squeezing some additional performance by adding caching to our persistence layer and it's a huge pain to maintain the cached objects manually in this setup Support of this code when DB schema changes is a big problem. I am looking for an advice on what could be the best alternative for us. As far as I know, ORMs has advanced in last 5 years, so it might be that now there's one that offers an acceptable performance. As I see this issue, we need to address those points: Find some way to reuse at least some of the written SQL to express mappings Have the possibility to issue native SQL queries without the necessity to manually decompose their results (i.e. avoid manual rs.getInt(42) as they are very sensitive to schema changes) Add a non-intrusive caching layer Keep the performance figures. Is there any ORM framework you could recommend with regards to that?

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  • How to do something firstly when the asp.net server start

    - by Edwin Tai
    Hi all I need an interface that can be run firstly when the application start. We can write some code in Application_Start of global.ascx. Is there any other method to finish it after some configurations in web.config,i don't wanna write any code in global.ascx You know,we can implement the Interface 'IHttpModule' to diy each request. But the interface is not fix to application start. which one is i wanna? Thanks

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  • Walking a hierarchy table with Linq

    - by Retrocoder
    I have a table with two columns, GroupId and ParentId (both are GUIDS). The table forms a hierarchy so I can look for a value in the “GroupId” filed, when I have found it I can look at its ParentId. This ParentId will also appear in the GroupId of a different record. I can use this to walk up the hierarchy tree from any point to the root (root is an empty GUID). What I’d like to do is get a list of records when I know a GroupId. This would be the record with the GroupId and all the parents back to the root record. Is this possible with Linq and if so, can anyone provide a code snippet?

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  • CSharp Compiler and Windows.Forms

    - by j-t-s
    Hi All I've just created a little app that programmatically compiles code using the C# Compiler, and it works brilliantly. But, one thing that I need it to do is compile Windows.Forms code. Like, I can create a console app with it, but I can't create a GUI-based form. Here's the link that got me started: http://support.microsoft.com/kb/304655 Can somebody please help? Thank you :)

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  • Application with both console and gui mode

    - by mridang
    Hi, I have a python console app. Like most python console apps it uses the OptionParser module to take arguments. I've now developed a GUI for my app using wxPython and i'd like to integrate the two. I'd like my app to be run both from the console and from the OS's UI. When it is invoked from the console it runs as a console app and when it is double clicked in the OS's UI, it runs as a GUI app. How could I do something like this? Could someone show me a a snippet of what the __main__ block should be like? Thanks a ton.

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  • embed a jquery script after jquery is loaded by widget

    - by matthew k
    http://stackoverflow.com/a/6065421 was helpful to see how to confirm jquery has been loaded. my widget will need a class that was written using jquery. may i have some assistance on embedding this other class built using jquery? thank you, below is the snippet from the above link with my code added in the final portion as noted in the code comments: (function(window, document, version, callback) { var j, d; var loaded = false; if (!(j = window.jQuery) || version > j.fn.jquery || callback(j, loaded)) { var script = document.createElement("script"); script.type = "text/javascript"; script.src = "/media/jquery.js"; script.onload = script.onreadystatechange = function() { if (!loaded && (!(d = this.readyState) || d == "loaded" || d == "complete")) { callback((j = window.jQuery).noConflict(1), loaded = true); j(script).remove(); } }; document.documentElement.childNodes[0].appendChild(script) } })(window, document, "1.3", function($, jquery_loaded) { //my code added below var script_tag = document.createElement('script'); script_tag.setAttribute("type","text/javascript"); script_tag.setAttribute("src", "http://mysite.com/widget/slides.jquery.js"); (document.getElementsByTagName("head")[0] || document.documentElement).appendChild(script_tag); $('#slides').slides({}); //this line gives an error. }); right now, i am trying the following based on the response(s) provided to this question (line that throws error is noted with a comment): //this function is called after jquery being embedded has been confirmed. {mysite} placeholder is nonexistent in actual code. function main() { jQuery(document).ready(function($) { var css_link = $("<link>", { rel: "stylesheet", type: "text/css", href: "http://mysite/widget/widget.css" }); css_link.appendTo('head'); $('#crf_widget').after('<div id="crf_widget_container"></div>'); /******* Load HTML *******/ var jsonp_url = "http://mysite/widget.php?callback=?"; $.getJSON(jsonp_url, function(data) { $('#crf_widget_container').html(data); $('#category_sel').change(function(){ alert(this.value); }); $.getScript("http://mysite/widget/slides.jquery.js", function(data, textStatus, jqxhr) { alert(1); //fires ok $('#slides').slides({}); //errors }); }); }); }

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  • decent html5 offline storage and caching examples

    - by Nils
    I'm keen to test out html offline storage and caching with a view to developing a prototype to show off the offline web application capabilities of html5. I've found some webkit-specific samples, but I'm battling to find any decent code samples that even work at all in Firefox 3.6 For a sample, I'd be happy with something that works with the following: Our company uses jquery extensively so I'd prefer samples that use that library or pure javascript. It should at least work on firefox (3.6+ is fine) Can anyone point me to some links that provide some guidance and code samples?

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  • How to comment in jspx page

    - by ricky
    How to comment the code in jspx page? I have tried several methods, <%-- --, but it doesn't not work! So I have to: code, it is really urgly, Is there any other ways? Any help is appreciated!

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  • What are "Location" and "Repositories" in the VisualSVN?

    - by Roman
    I am trying to install VisualSVN to manage my code with other users. In the middle of the installation I have a window saying "Change if necessary installation path and initial VisualSVN Server setting". And after that (in the same window) I have two fields: "Location" and "Repositories". What these two parameters mean? I know URL where the common code is stored. Should I specify this URL in the "repositories" field?

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  • Why are my Windows 7 updates continuously failing?

    - by Chris C.
    I'm an advanced level user here with an odd issue. I have two Windows Updates that are failing to install, every single time. I'm getting a mysterious "Code 1" error on both updates, an error for which I'm having difficulty finding a solution. The updates in question are: Security Update for Microsoft Visual C++ 2008 Service Pack 1 Redistributable Package (KB2538243) System Update Readiness Tool for Windows 7 for x64-based Systems (KB947821) [May 2011] Because these updates are failing, the Shut Down button in my start menu always has the shield icon next to it, indicating that "new" updates will be installed on shut down. But, of course, they'll fail and when the PC is restarted, the shield icon is still there. When checking the update history and viewing the details of the failed updates, I get the following: Security Update for Microsoft Visual C++ 2008 Service Pack 1 Redistributable Package (KB2538243) Installation date: ?6/?29/?2011 3:00 AM Installation status: Failed Error details: Code 1 Update type: Important A security issue has been identified leading to MFC application vulnerability in DLL planting due to MFC not specifying the full path to system/localization DLLs. You can protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer. More information: http://go.microsoft.com/fwlink/?LinkId=216803 and: System Update Readiness Tool for Windows 7 for x64-based Systems (KB947821) [May 2011] Installation date: ?6/?28/?2011 3:00 AM Installation status: Failed Error details: Code 1 Update type: Important This tool is being offered because an inconsistency was found in the Windows servicing store which may prevent the successful installation of future updates, service packs, and software. This tool checks your computer for such inconsistencies and tries to resolve issues if found. More information: http://support.microsoft.com/kb/947821 About My System I'm running Windows 7 Home Premium 64-bit. This is a custom PC build and the OS was installed fresh, not an upgrade from a previous version. I've been running this system for about four months. Windows Updates aside, the system is usually quite stable.

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  • loading javascript file after jquery.ready

    - by Spines
    I want to load a javascript file at the end of jquery.ready so that the code in my ready handler doesn't have to wait to execute until this large javascript file is loaded. My jquery.ready code doesn't rely on this javascript file at all. Would this be a good way to do that? $(function(){ ... ... $('head').append('<script type="text/javascript" src="/largejs.js"></script>'); });

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  • Myself throwing NullReferenceException... needs help

    - by Amit Ranjan
    I know it might be a weird question and its Title too, but i need your help. I am a .net dev , working on platform for the last 1.5 years. I am bit confused on the term usually we say " A Good Programmer ". I dont know ,what are the qualities of a good programmer ? Is the guy who writes a bug free code? or Can develop applications solely? or blah blah blah...lots of points. I dont know... But as far i am concerned , I know I am not a good programmer, still in learning phase an needs a lot to learn in coming days. So you guys are requested to please help me with this two problems of mine My first problem is regarding the proper Error Handling, which is a most debatable aspect of programming. We all know we use ` try { } catch { } finally { } ` in our code to manage exception. But even if I use try { } catch(exception ex) { throw ex } finally { } , different guys have different views. I still dont know the good way to handle errors. I can write code, use try-catch but still i feel I lacks something. When I saw the codes generated by .net fx tools even they uses throw ex or `throw new Exception("this is my exception")`.. I am just wondering what will be the best way to achieve the above. All means the same thing but why we avoid something. If it has some demerits then it must be made obselete.Anyways I still dont have one [how to handle errors efficiently?]. I generally follow the try-catch(execoption ex){throw ex}, and usually got stucked in debates with leads why you follow this why not that... 2.Converting your entire code blocks in modules using Design patterns of some OOPs concepts. How do you guys decide what architeture or pattern will be the best for my upcoming application based on its working, flow etc. I need to know what you guys can see that I can't. Since I know , I dont have that much experience but I can say, with my experience that experience doesnot comes either from degree/certificates or success you made instead it cames from failures you faced or got stucking situations. Pleas help me out.

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