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• How to add dynamic profile fields in Invision Power Board?

  - by user361908

  I run a game server and want to link the persons in game character name and stats to Invision Power Board. I've setup IPB so players currently login with their in game login. That means their username on the forum is the same as their username for the game. They can have multiple characters on 1 account so ideally I'd like to allow them to choose a main character and display an actual image of that character and allow them to display other characters if they are online. Currently I'm doing something like this by hacking profileFields.php but it's messy and not very efficient on the user or server end. My code currently uses 2 custom fields which the player can enter their character names in. To display only their main character they enter the name in the first field. To also display other characters if they are online they enter the same name into the second field. To resolve the IDs I have to run a lot of queries. I know PHP but I am not familiar with IPBs code at all. I just need pointed in a direction where I can combine the 2 fields into 1 field. tl;dr: Here is my setup: Invision Power Board 3 Data is stored in MySQL on the same server the forum is hosted on. Usernames on the forum are identical to usernames in the game Here is a breakdown of what I'd like to do: In the edit profile section I need to resolve the forum username to the games account id then: Display a list of characters and allow them to choose which characters they want to display if they are online as well as a default character that will be displayed if none are online. In the posts user info pane: Display the online character or the default if none are online. Here is what I need to know: How to generate a list of characters in the profile edit form and allow selection (checkbox) of each character to display as well as the selection of a default character (radio or dropdown?) How to fetch the data and place it in the posts user info pane

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• jQuery urlencode/decode patch help

  - by jeerose

  Hi Gang, I'm using this jQuery urlencode and urldecode plugin - very simple and easy to use but it doesn't, in its original form, remove + from the string. The one comment on the home page suggests a patch but I don't know how to implement it. Can anyone help me out? The Page: http://www.digitalbart.com/jquery-and-urlencode/ //URL Encode/Decode $.extend({URLEncode:function(c){var o='';var x=0;c=c.toString(); var r=/(^[a-zA-Z0-9_.]*)/; while(x<c.length){var m=r.exec(c.substr(x)); if(m!=null && m.length>1 && m[1]!=''){o+=m[1];x+=m[1].length; }else{if(c[x]==' ')o+='+';else{var d=c.charCodeAt(x);var h=d.toString(16); o+='%'+(h.length<2?'0':'')+h.toUpperCase();}x++;}}return o;}, URLDecode:function(s){var o=s;var binVal,t;var r=/(%[^%]{2})/; while((m=r.exec(o))!=null && m.length>1 && m[1]!=''){ b=parseInt(m[1].substr(1),16); t=String.fromCharCode(b);o=o.replace(m[1],t);}return o;} }); The proposed Patch: function dummy_url_decode(url) { // fixed -- + char decodes to space char var o = url; var binVal, t, b; var r = /(%[^%]{2}|\+)/; while ((m = r.exec(o)) != null && m.length > 1 && m[1] != '') { if (m[1] == '+') { t = ' '; } else { b = parseInt(m[1].substr(1), 16); t = String.fromCharCode(b); } o = o.replace(m[1], t); } return o; } Thanks!

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• how to pass the parameters to the urlconnection in java/android?

  - by androidbase

  hi all, i can establish a connection using HttpUrlConnection. my code below. client = new DefaultHttpClient(); URL action_url = new URL(actionUrl); conn = (HttpURLConnection) action_url.openConnection(); conn.setDoOutput(true); conn.setDoInput(true); conn.setRequestProperty("domain", "bschool.hbs.edu"); conn.setRequestProperty("userType", "2"); conn.setRequestProperty("referer", "http://www.alumni.hbs.edu/"); conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); conn.setRequestMethod(HttpPost.METHOD_NAME); DataOutputStream ds = new DataOutputStream(conn.getOutputStream()); String content = "username=username1&password=password11"; Log.v(TAG, "content: " + content); ds.writeBytes(content); ds.flush(); ds.close(); InputStream in = conn.getInputStream();//**getting filenotfound exception here.** BufferedReader reader = new BufferedReader( new InputStreamReader(in)); StringBuilder str1 = new StringBuilder(); String line = null; while ((line = reader.readLine()) != null) { str1.append(line); Log.v(TAG, "line:" + line); } in.close(); s = str1.toString(); getting filenotfound exception. dont know why? else give me some suggestion to pass username and passwrod parameter to the url by code..

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• DataGridView row is still dirty after committing changes

  - by Ecyrb

  DataGridView.IsCurrentRowDirty remains true after I commit changes to the database. I want to set it to false so it doesn't trigger RowValidating when it loses focus. I have a DataGridView bound to a BindingList<T>. I handle the CellEndEdit event and save changes to the database. After saving those changes I would like DataGridView.IsCurrentRowDirty to be set to true, since all cells in the row are up-to-date; however, it's set to false. This causes problems for me because when the row does lose focus it will trigger RowValidating, which I handle and validate all three cells in. So even though all the cells are valid and none are dirty it will still validate them all. That's a waste. Here's an example of what I have: void dataGridView_CellValidating(object sender, DataGridViewCellValidatingEventArgs e) { // Ignore cell if it's not dirty if (dataGridView.isCurrentCellDirty) return; // Validate current cell. } void dataGridView_RowValidating(object sender, DataGridViewCellCancelEventArgs e) { // Ignore Row if it's not dirty if (!dataGridView.IsCurrentRowDirty) return; // Validate all cells in the current row. } void dataGridView_CellEndEdit(object sender, DataGridViewCellEventArgs e) { // Validate all cells in the current row and return if any are invalid. // If they are valid, save changes to the database // This is when I would expect dataGridView.IsCurrentRowDirty to be false. // When this row loses focus it will trigger RowValidating and validate all // cells in this row, which we already did above. } I've read posts that said I could call the form's Validate() method, but that will cause RowValidating to fire, which is what I'm trying to avoid. Any idea how I can set DataGridView.IsCurrentRowDirty to true? Or maybe a way to prevent RowValidating from unnecessarily validating all the cells?

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• How to retrieve value from DropDownListFor html helper in ASP.NET MVC2?

  - by Eedoh

  Hello I know there was few similar questions here about DropDownListFor, but neither helped me... I use Entity Framework as ORM in my project. There's EF model called "Stete". Stete has Foreign on EF model called "Drustva" Now I'm trying to make a form for editing the data, for Stete model. I managed to display everything, including Stete.Drustva.Naziv property, but I can't get this last property in my handler method [HttpPost]. It always return 0, no matter what I select in drop down list. Here's the code: DrustvaController: public static IEnumerable<SelectListItem> DrustvaToSelectListItemsById(this KnjigaStetnikaEntities pEntities, int Id) { IEnumerable<Drustva> drustva = (from d in pEntities.Drustva select d).ToList(); return drustva.OrderBy(drustvo => drustvo.Naziv).Select(drustvo => new SelectListItem { Text = drustvo.Naziv, Value = drustvo.Id.ToString(), Selected = (drustvo.Id == Id)? true : false }); } SteteController: private IEnumerable<SelectListItem> privremenaListaDrustava(int Id) { using (var ctx = new KnjigaStetnikaEntities()) { return ctx.DrustvaToSelectListItemsById(Id); } } public ActionResult IzmijeniPodatkeStete(Int32 pBrojStete) { PretragaStetaModel psm = new PretragaStetaModel(); ViewData["drustva"] = privremenaListaDrustava(psm.VratiStetuPoBrojuStete(pBrojStete).Drustva.Id); ViewData.Model = new Models.Stete(); return View("EditView", (Stete.Models.Stete)psm.GetSteta(pBrojStete)); } EditView: <div class="editor-label"> <%: Html.Label("Društvo") %> </div> <div class="editor-field"> <%: Html.DropDownListFor(m => m.Drustva.Naziv, ViewData["drustva"] as IEnumerable<SelectListItem>) %> <%: Html.ValidationMessageFor(model => model.FKDrustvo) %> </div> I am sorry for not translating names of the objects into english, but they hardly have appropriate translation. If necessary, I can try creating similar example...

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• Is HttpContextWrapper all that....useful?

  - by bakasan

  I've been going through the process of cleaning up our controller code to make each action as testable. Generally speaking, this hasn't been too difficult--where we have opportunity to use a fixed object, like say FormsAuthentication, we generally introduce some form of wrapper as appropriate and be on our merry way. For reasons not particularly germaine to this conversation, when it came to dealing with usage of HttpContext, we decided to use the newly created HttpContextWrapper class rather than inventing something homegrown. One thing we did introduce was the ability to swap in a HttpContextWrapper (like say, for unit testing). This was wholly inspired by the way Oren Eini handles unit testing with DateTimes (see article, a pattern we also use) public static class FooHttpContext { public static Func<HttpContextWrapper> Current = () => new HttpContextWrapper(HttpContext.Current); public static void Reset() { Current = () => new HttpContextWrapper(HttpContext.Current); } } Nothing particularly fancy. And it works just fine in our controller code. The kicker came when we go to write unit tests. We're using Moq as our mocking framework, but alas var context = new Mock<HttpContextWrapper>() breaks since HttpContextWrapper doesn't have a parameterless ctor. And what does it take as a ctor parameter? A HttpContext object. So I find myself in a catch 22. I'm using the prescribed way to decouple HttpContext--but I can't mock a value in because the original HttpContext object was sealed and therefore difficult to test. I can map HttpContextBase, which both derive from--but that doesn't really get me what I'm after. Am I just missing the point somewhere with regard to HttpContextWrapper? I can find ways to work around the issue, but we are kind of fond of remaining consistent in decoupling using the Function delegate pattern--but it seems like we're not fully grokking intent of the wrapper.

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• Boosting my GA with Neural Networks and/or Reinforcement Learning

  - by AlexT

  As I have mentioned in previous questions I am writing a maze solving application to help me learn about more theoretical CS subjects, after some trouble I've got a Genetic Algorithm working that can evolve a set of rules (handled by boolean values) in order to find a good solution through a maze. That being said, the GA alone is okay, but I'd like to beef it up with a Neural Network, even though I have no real working knowledge of Neural Networks (no formal theoretical CS education). After doing a bit of reading on the subject I found that a Neural Network could be used to train a genome in order to improve results. Let's say I have a genome (group of genes), such as 1 0 0 1 0 1 0 1 0 1 1 1 0 0... How could I use a Neural Network (I'm assuming MLP?) to train and improve my genome? In addition to this as I know nothing about Neural Networks I've been looking into implementing some form of Reinforcement Learning, using my maze matrix (2 dimensional array), although I'm a bit stuck on what the following algorithm wants from me: (from http://people.revoledu.com/kardi/tutorial/ReinforcementLearning/Q-Learning-Algorithm.htm) 1. Set parameter , and environment reward matrix R 2. Initialize matrix Q as zero matrix 3. For each episode: * Select random initial state * Do while not reach goal state o Select one among all possible actions for the current state o Using this possible action, consider to go to the next state o Get maximum Q value of this next state based on all possible actions o Compute o Set the next state as the current state End Do End For The big problem for me is implementing a reward matrix R and what a Q matrix exactly is, and getting the Q value. I use a multi-dimensional array for my maze and enum states for every move. How would this be used in a Q-Learning algorithm? If someone could help out by explaining what I would need to do to implement the following, preferably in Java although C# would be nice too, possibly with some source code examples it'd be appreciated.

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• UIWebView is ignoring cookies?!

  - by A. Miladinovic

  Hello everybody, I am creating an app for the iPhone that fetches a specific page from a website, but to be able to view this site you need to log in with a username and a password. I've created this code: NSString *urlAddress = @"http://www.wdg-hamburg.de"; NSURL *url = [NSURL URLWithString:urlAddress]; NSString *post = @"name=loginname&pass=pass&form_id=user_login&op=Anmelden"; NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding]; NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]]; NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url]; [request setHTTPMethod: @"POST"]; [request setValue:postLength forHTTPHeaderField:@"Content-Length"]; [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"]; [request setHTTPBody:postData]; [vPlan loadRequest:request]; But I am not logged in at the UIWebView! I am logging NSHTTPCookieStorage to the console and it shows me the necessary cookie, but I dont get logged in. Does anybody knows how I can fix that? Kind regards, A. Miladinovic

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• Asp.Net MVC EditorTemplate Model is lost after Post

  - by Farrell

  I have a controller with two simple Methods: UserController Methods: [AcceptVerbs(HttpVerbs.Get)] public ActionResult Details(string id) { User user = UserRepo.UserByID(id); return View(user); } [AcceptVerbs(HttpVerbs.Post)] public ActionResult Details(User user) { return View(user); } Then there is one simple view for displaying the details: <% using (Html.BeginForm("Details", "User", FormMethod.Post)) {%> <fieldset> <legend>Userinfo</legend> <%= Html.EditorFor(m => m.Name, "LabelTextBoxValidation")%> <%= Html.EditorFor(m => m.Email, "LabelTextBoxValidation")%> <%= Html.EditorFor(m => m.Telephone, "LabelTextBoxValidation")%> </fieldset> <input type="submit" id="btnChange" value="Change" /> <% } %> As you can see, I use an editor template "LabelTextBoxValidation": <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<string>" %> <%= Html.Label("") %> <%= Html.TextBox(Model,Model)%> <%= Html.ValidationMessage("")%> Showing user information is no problem. The view renders perfectly user details. When I submit the form, the object user is lost. I debugged on the row "return View(User);" in the Post Details method, the user object is filled with nullable values. If I dont use the editor template, the user object is filled with correct data. So there has to be something wrong with the editor template, but can't figure out what it is. Suggestions?

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• Paperclip and tempfile with Rails

  - by Eric Koslow

  I'm trying to write a rails application where users can upload images, but Paperclip doesn't seem to be working for me. I've gone through all the basic steps (added has_attached_file, the migration, making the form multipart) but I keep getting the same error whenever I try uploading an image: can't convert nil into Integer Looking at the top of the stack ...rails3/lib/paperclip/processor.rb:46:in `sprintf' ...rails3/lib/paperclip/processor.rb:46:in `make_tmpname' .../ruby-1.9.2-head/lib/ruby/1.9.1/tmpdir.rb:154:in `create' .../ruby-1.9.2-head/lib/ruby/1.9.1/tempfile.rb:134:in `initialize' It seems the problem is in the tempfile. My code: _form.rb <%= form_for @high_school, :html => {:multipart => true} do |f| %> <%= f.error_messages %> ... <div class="field"> <%= f.file_field :photo %> </div> <div class="actions"> <%= f.submit %> </div> <% end %> model/high_school.rb ... validates_length_of :password, :minimum => 4, :allow_blank => true has_attached_file :photo has_many :students ... Is this a known problem? I basically followed the instructions from the github to the letter. My environment: Rails3 and Ruby 1.9.2dev Thank you!

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• MS Access 2003: Can data disappear from records and how do I test for this and prevent it?

  - by user328960

  Problem and about the database: Data from a record in Access 2003 database has disappeared. This database has 1 backend and 3 frontends, multiple users and is hosted on Citrix. Within this database, we have records of all clients served, ranging in the 1000s. Background info: The form for client data entry is set up with various subforms, including both a "programs enrolled" subform and a "services" subform. A client can be enrolled in multiple programs. Once enrolled in a program, services can be entered for that program area using the services subform. There are multiple fields in the services subform, one of which is a drop-down field allowing you to choose from the programs a client has been enrolled in (the list is updated for that client whenever he is enrolled in a new program). The problem details: For one specific record and one specific program area, the program has disappeared from the "programs enrolled" subform and all of the related services have disappeared from the "services" subform for a period of 3 months of data entry. However, other programs and services for this record did not disappear. Questions: Is the disappearance of data a common Access 2003 problem? Are there tests in place that can be run to see if data is disappearing and catch that data? If so, what are they? If there is specific code involved, what is it? What can be done to prevent the disappearing of data (other than using a different database)?

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• SmartGWT TreeGrid Selection

  - by wonderbread988

  I have a SmartGWT webapp that uses a TreeGrid with a dataSource. I would like this treeGrid to preselect values saved in a cookie. I have gotten the value to be saved in the cookie correctly, however I have tried several different methods of getting the treeGrid to select these values and I can not get it to work. I am attempting to do this in the onmoduleLoad method in my entry point. I have tried: Cookies.setCookie( "selectedUnit", TreeGrid.getSelectedPaths() ) to set the cookie and then when the page is reloaded: TreeGrid.setSelectedPaths( Cookies.getCookie("selectedUnit" ) When I could not get that to work, I tried storing just the id of the item selected: Cookies.setCookies( "selectedUnit", TreeGrid.getSelected().getAttribute("id") ) and then onLoad attempting to find that record and select it: TreeGrid.selectRecord( TreeGrid.getTree().find("id", Cookies.getCookie("selectedUnit") ) ) This did not work either, so finally I tried storing TreeGrid.getSelectedState() and upon retrieving that value form the cookie onLoad, passing it to TreeGrid.setSelectedState() similar to my first attempt, but passing state instead of path. I could not get any of these things to work. Can I not tell the TreeGrid to select an item in the 'OnmoduleLoad' method? Is this action only valid after the TreeGrid has been drawn? If that is the case where and how can I do this? Thank you in advance for any help you can give.

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• Faster way to transfer table data from linked server

  - by spender

  After much fiddling, I've managed to install the right ODBC driver and have successfully created a linked server on SQL Server 2008, by which I can access my PostgreSQL db from SQL server. I'm copying all of the data from some of the tables in the PgSQL DB into SQL Server using merge statements that take the following form: with mbRemote as ( select * from openquery(someLinkedDb,'select * from someTable') ) merge into someTable mbLocal using mbRemote on mbLocal.id=mbRemote.id when matched /*edit*/ /*clause below really speeds things up when many rows are unchanged*/ /*can you think of anything else?*/ and not (mbLocal.field1=mbRemote.field1 and mbLocal.field2=mbRemote.field2 and mbLocal.field3=mbRemote.field3 and mbLocal.field4=mbRemote.field4) /*end edit*/ then update set mbLocal.field1=mbRemote.field1, mbLocal.field2=mbRemote.field2, mbLocal.field3=mbRemote.field3, mbLocal.field4=mbRemote.field4 when not matched then insert ( id, field1, field2, field3, field4 ) values ( mbRemote.id, mbRemote.field1, mbRemote.field2, mbRemote.field3, mbRemote.field4 ) WHEN NOT MATCHED BY SOURCE then delete; After this statement completes, the local (SQL Server) copy is fully in sync with the remote (PgSQL server). A few questions about this approach: is it sane? it strikes me that an update will be run over all fields in local rows that haven't necessarily changed. The only prerequisite is that the local and remote id field match. Is there a more fine grained approach/a way of constraining the merge statment to only update rows that have actually changed?

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• UpdateModel() fails after migration from MVC 1.0 to MVC 2.0

  - by Alastair Pitts

  We are in the process of migrating our ASP.NET MVC 1.0 web app to MVC 2.0 but we have run into a small snag. In our report creation wizard, it is possible leave the Title text box empty and have it be populated with a generic title (in the post action). The code that does the update on the model of the Title is: if (TryUpdateModel(reportToEdit, new[] { "Title" })) { //all ok here try to create (custom validation and attach to graph to follow) //if title is empty get config subject if (reportToEdit.Title.Trim().Length <= 0) reportToEdit.Title = reportConfiguration.Subject; if (!_service.CreateReport(1, reportToEdit, SelectedUser.ID, reportConfigID, reportCategoryID, reportTypeID, deviceUnitID)) return RedirectToAction("Index"); } In MVC 1.0, this works correctly,the reportToEdit has an empty title if the textbox is empty, which is then populated with the Subject property. In MVC 2.0 this fails/returns false. If I add the line above: UpdateModel(reportToEdit, new[] { "Title" }); it throws System.InvalidOperationException was unhandled by user code Message="The model of type 'Footprint.Web.Models.Reports' could not be updated." Source="System.Web.Mvc" StackTrace: at System.Web.Mvc.Controller.UpdateModel[TModel](TModel model, String prefix, String[] includeProperties, String[] excludeProperties, IValueProvider valueProvider) at System.Web.Mvc.Controller.UpdateModel[TModel](TModel model, String[] includeProperties) at Footprint.Web.Controllers.ReportsController.Step1(FormCollection form) in C:\TFS Workspace\ExtBusiness_Footprint\Branches\apitts_uioverhaul\Footprint\Footprint.Web\Controllers\ReportsController.cs:line 398 at lambda_method(ExecutionScope , ControllerBase , Object[] ) at System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClassd.<InvokeActionMethodWithFilters>b__a() at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) InnerException: Reading the MVC2 Release notes I see this breaking change: Every property for model objects that use IDataErrorInfo to perform validation is validated, regardless of whether a new value was set. In ASP.NET MVC 1.0, only properties that had new values set would be validated. In ASP.NET MVC 2, the Error property of IDataErrorInfo is called only if all the property validators were successful. but I'm confused how this is affecting me. I'm using the entity framework generated classes. Can anyone pinpoint why this is failing?

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• asp.net mvc, IIS 6 vs IIS7.5, and integrated windows authentication causing javascript errors?

  - by chris

  This is a very strange one. I have an asp.net MVC 1 app. Under IIS6, with no anon access - only integrated windows auth - every thing works fine. I have the following on most of my Foo pages: <% using (Html.BeginForm()) { %> Show All: <%= Html.CheckBox("showAll", new { onClick = "$(this).parent('form:first').submit();" })%> <% } %> Clicking on the checkbox causes a post, the page is reloaded, everything is good. When I look at the access logs, that's what I see, with one oddity - the js library is requested during the page first request, but not for any subsequent page requests. Log looks like: GET / 401 GET / 200 GET /Content/Site.css 304 GET /Scripts/jquery-1.3.2.min.js 401 GET /Scripts/jquery-ui-1.7.2.custom.min.js 401 GET /Scripts/jquery.tablesorter.min.js 401 GET /Scripts/jquery-1.3.2.min.js 304 GET /Scripts/jquery-ui-1.7.2.custom.min.js 304 GET /Scripts/jquery.tablesorter.min.js 304 GET /Content/Images/logo.jpg 401 GET /Content/Images/logo.jpg 304 GET /Foo 401 GET /Foo 200 POST /Foo/Delete 302 GET /Foo/List 200 POST /Foo/List 200 This corresponds to home page, click on "Foo", delete a record, click a checkbox (which causes the 2nd POST). Under IIS7.5, it sometimes fails - the click on the check box doesn't cause a postback, but there are no obvious reasons why. I've noticed under IIS7.5 that every single page request re-issues the requests for the js libraries - the first one a 401, followed by either a 200 (OK) or 304 (not modified), as opposed to the above log extract where that only happened during the 1st request. Is there any way to eliminate the 401 requests? Could a timing issue have something to do with the click being ignored? Would increasing the number of concurrent connections help? Any other ideas? I'm at a bit of a loss to explain this.

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• Ajax Asynchronous in IE - Error "The Data Necessary to Complete This Operation is Not Yet Available"

  - by Supernovah

  Hey there. I have a 100% valid Ajax model written in Javascript with a few inputs I use being, Get or Post method, What page to communicate with, What String to send to that page and What element on my own page I might be fiddling with when I receive my response. The problem is that, should I set the request to Asynchronous (Hence Ajax), IE returns the error "The Data Necessary to Complete This Operation is Not Yet Available" in the onreadystatechange event where all I do is check if the readystate is 4 and the status is 200. The error doesn't come up in Firefox or Chrome as I would exepect as the Ajax is Asynchronous. Heres a snippet from the Post method xmlhttp.open("POST", commPage, true); xmlhttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=UTF-8"); xmlhttp.onreadystatechange = function() { if (xmlhttp.readyState == 4 && xmlhttp.status == 200) { j = xmlhttp.responseText; i.innerHTML = j; } } xmlhttp.send(str); Edit: I should point out that in IE, I'm using the ActiveX Control - Msxml2.XMLHTTP or Microsoft.XMLHTTP or whichever returns true first.

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• NAudio demos not working anymore

  - by Kurru

  I just tried to run the NAudio demos and I'm getting a weird error: System.BadImageFormatException: Could not load file or a ssembly 'NAudio, Version=1.3.8.0, Culture=neutral, PublicKeyToken=null' or one o f its dependencies. An attempt was made to load a program with an incorrect form at. File name: 'NAudio, Version=1.3.8.0, Culture=neutral, PublicKeyToken=null' at NAudioWpfDemo.AudioGraph..ctor() at NAudioWpfDemo.ControlPanelViewModel..ctor(IWaveFormRenderer waveFormRender er, SpectrumAnalyser analyzer) in C:\Users\Admin\Downloads\NAudio-1.3\NAudio-1-3 \Source Code\NAudioWpfDemo\ControlPanelViewModel.cs:line 23 at NAudioWpfDemo.MainWindow..ctor() in C:\Users\Admin\Downloads\NAudio-1.3\NA udio-1-3\Source Code\NAudioWpfDemo\MainWindow.xaml.cs:line 15 WRN: Assembly binding logging is turned OFF. To enable assembly bind failure logging, set the registry value [HKLM\Software\M icrosoft\Fusion!EnableLog] (DWORD) to 1. Note: There is some performance penalty associated with assembly bind failure lo gging. To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fus ion!EnableLog]. Since the last time I used NAudio demos I have changed from 32bit Windows XP to 64bit Windows 7. Would this cause this issue? Its very annoying as I was about to try my hand at audio in C# again

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• HL7 parsing in PHP

  - by Narcissus

  Hi all, I'm looking into options for parsing HL7 messages via PHP. I'm aware of the Net_HL7 package on PEAR but to be perfectly honest, I don't think that I want to base my code around a seemingly 'abandoned' package and even if I did, I just don't think that my brain suits the functions 'correctly'. Maybe if I had more of an HL7 background it would make a bit more sense, I don't know. Anyway: I'm guessing that 95% of the time, I'm going to be parsing and reading data from messages. The other 5%, I'll be creating and/or sending messages. I don't necessarily need to do any form of validation on the messages themselves, I just need to pull/push data. I definitely need support for 'non-XML' HL7 v2.x, but naturally XML-based v2 and v3 would be a bonus. So does anyone have any suggestions as to other libraries that I might use? I'm looking for pure PHP solutions as I want to have minimal requirements on the server that aren't "copy this directory here". Thanks!

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• Converting formCollection array to objects in the controller

  - by bergin

  in my view I have several [n].propertyName array fields I want to turn the formCollection fields into objects myobject[n].propertyName when it goes to the controller. so for example, the context: View: foreach (var item in Model.SSSubjobs.AsEnumerable()) <%: Html.Hidden("["+c+"].sssj_id", item.sssj_id ) %> <%: Html.Hidden("["+c+"].order_id", item.order_id ) %> <%: Html.TextBox("["+c+"].farm", item.farm %> <%: Html.TextBox("["+c+"].field", item.field %> c++; Controller: I want to take the above [0].sssj_id and turn into sssj[0].sssj_id or a list of sssj objects My first idea was to look in the form collection for things starting with "[" but I have a feeling this isnt right... this is as far as I got: public IList<SoilSamplingSubJob> extractSSSJ(FormCollection c) { IList<SoilSamplingSubJob> sssj_list=null; SoilSamplingSubJob sssj; var n=0; foreach (var key in c.AllKeys) // iterate through the formcollection { var value = c[key]; if(key.StartsWith("[")) // ie turn [0].gps_pk_chx into sssj.gps_pk_chx ??? } return sssj_list; }

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• StackOverflow in VB.NET SQLite query

  - by Majgel

  I have an StackOverflowException in one of my DB functions that I don't know how to deal with. I have a SQLite database with one table "tblEmployees" that holds records for each employees (several thousand posts) and usually this function runs without any problem. But sometimes after the the function is called a thousand times it breaks with an StackOverflowException at the line "ReturnTable.Load(reader)" with the message: An unhandled exception of type 'System.StackOverflowException' occurred in System.Data.SQLite.dll If I restart the application it has no problem to continue with the exact same post it last crashed on. I can also make the exactly same DB-call from SQLite Admin at the crash time without no problems. Here is the code: Public Function GetNextEmployeeInQueue() As String Dim NextEmployeeInQueue As String = Nothing Dim query As [String] = "SELECT FirstName FROM tblEmployees WHERE Checked=0 LIMIT 1;" Try Dim ReturnTable As New DataTable() Dim mycommand As New SQLiteCommand(cnn) mycommand.CommandText = query Dim reader As SQLiteDataReader = mycommand.ExecuteReader() ReturnTable.Load(reader) reader.Close() If ReturnTable.Rows.Count > 0 Then NextEmployeeInQueue = ReturnTable.Rows(0)("FirstName").ToString() Else MsgBox("No more employees found in queue") End If Catch fail As Exception MessageBox.Show("Error: " & fail.Message.ToString()) End Try If NextEmployeeInQueue IsNot Nothing Then Return NextEmployeeInQueue Else Return "No more records in queue" End If End Function When crashes, the reader has "Property evaluation failed." in all values. I assume there is some problem with allocated memory that isn't released correctly, but can't figure out what object it's all about. The DB-connection opens when the DB-class object is created and closes on main form Dispose. Should I maybe dispose the mycommand object every time in a finally block? But wouldn't that result in a closed DB-connection?

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• LINQ to Entities pulling back entire table

  - by Focus

  In my application I'm pulling back a user's "feed". This contains all of that user's activities, events, friend requests from other users, etc. When I pull back the feed I'm calling various functions to filter the request along the way. var userFeed = GetFeed(db); // Query to pull back all data userFeed = FilterByUser(userFeed, user, db); // Filter for the user userFeed = SortFeed(userFeed, page, sortBy, typeName); // Sort it The data that is returned is exactly what I need, however when I look at a SQL Profile Trace I can see that the query that is getting this data does not filter it at the database level and instead is selecting ALL data in the table(s). This query does not execute until I iterate through the results on my view. All of these functions return an IEnumerable object. I was under the impression that LINQ would take all of my filters and form one query to pull back the data I want instead of pulling back all the data and then filtering it on the server. What am I doing wrong or what don't I understand about the way LINQ evaluates queries?

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• dbExpress error in Delphi 2010

  - by JosephStyons

  The below code works in Delphi 2007, but it gives me this error in Delphi 2010: --------------------------- Error --------------------------- Cannot load oci.dll library (error code 127). The oci.dll library may be missing from the system path or you may have an incompatible version of the library installed. --------------------------- OK Details >> --------------------------- The exception is raised when I set "connected" to "true". I have tried placing a copy of "oci.dll" in the same folder as the .exe file, but I get the same message. I also get this message when using the form designer and a visible TSQLConnection component. Any thoughts? function TDBExpressConnector.GetConnection(username, password, servername: string) : TSQLConnection; begin //take a username, password, and server //return a connected TSQLConnection try FSqlDB := TSQLConnection.Create(nil); with FSqlDB do begin Connected := False; DriverName := 'Oracle'; GetDriverFunc := 'getSQLDriverORACLE'; KeepConnection := True; LibraryName := 'dbxora30.dll'; ConnectionName := 'OracleConnection';; Params.Clear; Params.Add('DriverName=Oracle'); Params.Add('DataBase=' + servername); Params.Add('User_Name=' + username); Params.Add('Password=' + password); Params.Add('RowsetSize=20'); Params.Add('BlobSize=-1'); Params.Add('ErrorResourceFile='); Params.Add('LocaleCode=0000'); Params.Add('Oracle TransIsolation=ReadCommited'); Params.Add('OS Authentication=False'); Params.Add('Multiple Transaction=False'); Params.Add('Trim Char=False'); Params.Add('Decimal Separator=.'); LoginPrompt := False; Connected := True; end; Result := FSqlDB; except on e:Exception do raise; end; //try-except end;

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• NSURLConnection sendSynchronousRequest: fails when using POST

  - by Combat

  I'm using a custom NSURLCache to intercept calls for certain web pages in order to modify them dynamically. Inside cachedResponseForRequest: I modify the request, then send it out using sendSynchronousRequest. This works very well until you attempt to submit a form. If there is post data it fails. If i remove the HTTPBody and set the request to GET, it succeeds. But i need it to work with POST. If i send the request asynchronously it also works which is why i can't figure out why the synchronous request fails. Here's my stack trace: Date/Time: 2010-01-17 12:37:55.416 -0800 OS Version: iPhone OS 3.1.2 (7D11) Report Version: 104 Exception Type: EXC_BAD_ACCESS (SIGBUS) Exception Codes: KERN_PROTECTION_FAILURE at 0x0000001c Crashed Thread: 2 Thread 2 Crashed: 0 CFNetwork 0x0000b4e4 HTTPMessage::copyHeaderFieldValue(__CFString const*) + 18 1 CFNetwork 0x0000b4c8 CFHTTPMessageCopyHeaderFieldValue + 16 2 CFNetwork 0x0000e022 HTTPProtocol::createStream() + 328 3 CFNetwork 0x0000de8a HTTPProtocol::createAndOpenStream() + 458 4 CFNetwork 0x0000cba2 HTTPProtocol::startLoad() + 278 5 CFNetwork 0x0000c8da URLConnectionLoader::loaderScheduleOriginLoad(_CFURLRequest const*) + 216 6 CFNetwork 0x0000c77c URLConnectionLoader::loaderScheduleLoad(_CFURLRequest const*) + 280 7 CFNetwork 0x0000c5e6 URLConnectionLoader::LoaderConnectionEventQueue::processAllEventsAndConsumePayload(XConnectionEventInfo, long) + 134 8 CFNetwork 0x0000c53a URLConnectionLoader::processEvents() + 60 9 CFNetwork 0x0000a892 URLConnection::multiplexerClientPerform(RunLoopMultiplexer) + 30 10 CFNetwork 0x0000a812 MultiplexerSource::perform() + 86 11 CFNetwork 0x0000a7b2 MultiplexerSource::_perform(void*) + 2 12 CoreFoundation 0x000573a0 CFRunLoopRunSpecific + 1908 13 CoreFoundation 0x00056c18 CFRunLoopRunInMode + 44 14 Foundation 0x0005a998 +[NSURLConnection(NSURLConnectionReallyInternal) _resourceLoadLoop:] + 172 15 Foundation 0x00053ac6 -[NSThread main] + 42 16 Foundation 0x00001d0e __NSThread_main_ + 852 17 libSystem.B.dylib 0x0002b7b0 _pthread_body + 20 As you can see, copyHeaderFieldValue is causing the crash. What I don't understand is why.

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• WCF Named Pipe IPC

  - by Peter M

  I have been trying to get up to speed on Named Pipes this week. The task I am trying to solve with them is that I have an existing windows service that is acting as a device driver that funnels data from an external device into a database. Now I have to modify this service and add an optional user front end (on the same machine, using a form of IPC) that can monitor the data as it passes between the device and the DB as well as send some commands back to the service. My initial ideas for the IPC were either named pipes or memory mapped files. So far I have been working through the named pipe idea using WCF Tutorial Basic Interprocess Communication . My idea is to set the Windows service up with an additional thread that implements the WCF NamedPipe Service and use that as a conduit to the internals of my driver. I have the sample code working, however I can not get my head around 2 issues that I am hoping that someone here can help me with: In the tutorial the ServiceHost is instantiated with a typeof(StringReverser) rather than by referencing a concrete class. Thus there seems to be no mechanism for the Server to interact with the service itself (between the host.Open() and host.Close() lines). Is it possible to create a link between and pass information between the server and the class that actually implements the service? If so, how? If I run a single instance of the server and then run multiple instance of the clients, it seems that each client gets a separate instance of the service class. I tried adding some state information to the class implementing the service and it was only retained within the instance of the named pipe. This is possibly related to the first question, but is there anyway to force the named pipes to use the same instance of the class that is implementing the service? Finally, any thoughts on MMF vs Named Pipes? Thanks for you help

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• Getting Response from TIdHttp with Error Code 400

  - by Robert Love

  I have been writing a Delphi library for StackApps API. I have run into a problem with Indy. I am using the version that ships with Delphi 2010. If you pass invalid parameters to one of the StackApps API it will return a HTTP Error Code 400 and then in the response it will contain a JSON object with more details. By visiting http://api.stackoverflow.com/0.8/stats/?Key=BadOnPurpose in Chrome Browser you can see an Example. I.E. and Firefox hide the JSON. Using WireShark I can see that the JSON object is returned using the code below, but I am unable to access it using Indy. For this test code I dropped a TIdHttp component on the form and placed the following code in a button click. procedure TForm10.Button2Click(Sender: TObject); var SS : TStringStream; begin SS := TStringStream.Create; IdHTTP1.Get('http://api.stackoverflow.com/0.8/stats/?Key=BadOnPurpose',SS,[400]); Memo1.Lines.Text := SS.DataString; SS.Free; end; I passed [400] so that it would not raise the 400 exception. It is as if Indy stopped reading the response. As the contents of Memo1 are empty. I am looking for a way to get the JSON Details.

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