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• Reflection.Emit: How to convert MethodBuilder to RuntimeMethodInfo reliably?

  - by Qwertie

  After generating a type dynamically and calling TypeBuilder.CreateType, I want to create a delegate that points to a method in the new type. But if I use code like loadedType = typeBuilder.CreateType(); myDelegate = (MyDelegate)Delegate.CreateDelegate( typeof(MyDelegate), methodBuilder); Reusing the methodBuilder as a methodInfo, I get the exception "MethodInfo must be a RuntimeMethodInfo". Now normally I can re-acquire the MethodInfo with MethodInfo mi = loadedType.GetMethod(methodBuilder.Name); myDelegate = (MyDelegate)Delegate.CreateDelegate(typeof(MyDelegate), mi); But my class may contain several overloaded methods with the same name. How do I make sure I get the right one? Do methods have some persistent identifier I could look up in loadedType?

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• .NET 4.0 Fails When sending emails with attachments larger than 3MB

  - by JL

  I recently had an issue after upgrading my .net framework to 4.0 from 3.5: System.Net.Mail.SmtpException: Failure sending mail. --- System.IndexOutOfRangeException: Index was outside the bounds of the array. at System.Net.Base64Stream.EncodeBytes(Byte[] buffer, Int32 offset, Int32 count, Boolean dontDeferFinalBytes, Boolean shouldAppendSpaceToCRLF) at System.Net.Base64Stream.Write(Byte[] buffer, Int32 offset, Int32 count) at System.Net.Mime.MimePart.Send(BaseWriter writer) at System.Net.Mime.MimeMultiPart.Send(BaseWriter writer) at System.Net.Mail.Message.Send(BaseWriter writer, Boolean sendEnvelope) at System.Net.Mail.SmtpClient.Send(MailMessage message) --- End of inner exception stack trace --- I read this connect bug listing here: http://connect.microsoft.com/VisualStudio/feedback/details/544562/cannot-send-e-mails-with-large-attachments-system-net-mail-smtpclient-system-net-mail-mailmessage. If anyone cares about this issue, please vote for it on Connect, so it will be fixed sooner.

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• Process XML in C# using external entity file

  - by Ryan Berger

  I am processing an XML file (which does not contain any dtd or ent declarations) in C# that contains entities such as &eacute; and &agrave;. I receive the following exception when attempting to load an XML file... XmlDocument xmlDoc = new XmlDocument(); xmlDoc.LoadXml(record); Reference to undeclared entity 'eacute'. I was able to track down the proper ent file here. How do I tell XmlDocument to use this ent file when loading my XML file?

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• Calling Facebook API without authenticating user/"connecting"

  - by Andy

  Hi, I am working with facebook's API and I want to call the links.prevew method. http://wiki.developers.facebook.com/index.php/Links.preview Is it possible to call this method without having my user authenticate or "connect"? For example, not all of my users have hooked up their facebook accounts to my website, but I still want to use this API method. I am getting the following error: Fatal error: Uncaught Exception: 453: A session key is required for calling this method thrown in /public_html/libs/facebook.php on line 413 But on the wiki it says that the method does not require a session key? If it is not possible to make API calls without such a key, is there anyway I can make calls on behalf of my account or my applications account (rather then a users account)? Any help is appreciated, thanks!

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• VB.net Excel sorting

  - by Lora

  I am trying to get a macro convert from VBA over to vb.net and I am getting a type mismatched error and can't figure it out. I am hoping someone here will be able to help me. This is the code. Sub SortRawData() Dim oSheet As Excel.Worksheet Dim oRange As Excel.Range Try oSheet = SetActiveSheet(mLocalDocument, "Sheet 1") oRange = mApplication.ActiveSheet.UsedRange oRange.Sort(Key1:=oRange("J2"), Order1:=Excel.XlSortOrder.xlAscending, _ Header:=Excel.XlYesNoGuess.xlYes, OrderCustom:=1, MatchCase:=False, _ Orientation:=Excel.XlSortOrientation.xlSortColumns, _ DataOption1:=Excel.XlSortDataOption.xlSortNormal, _ DataOption2:=Excel.XlSortDataOption.xlSortNormal, _ DataOption3:=Excel.XlSortDataOption.xlSortNormal) Catch ex As Exception ErrorHandler.HandleError(ex.Message, ex.Source, ex.StackTrace) End Try End Sub This is the code from the macro Sub SortRawData(ByRef poRange As Range) Set poRange = Application.ActiveSheet.UsedRange poRange.Sort Key1:=Range("J2"), Order1:=xlAscending _ , Header:=xlYes, OrderCustom:=1, MatchCase:=False, Orientation:= _ xlTopToBottom, DataOption1:=xlSortNormal, DataOption2:=xlSortNormal, _ DataOption3:=xlSortNormal poRange.Sort Key1:=Range("D2"), Order1:=xlAscending, _ Key2:=Range("H2"), Order2:=xlAscending, _ Key3:=Range("L2"), Order3:=xlAscending, _ Header:=xlYes, OrderCustom:=1, MatchCase:=False, Orientation:= _ xlTopToBottom, DataOption1:=xlSortNormal, DataOption2:=xlSortNormal, _ DataOption3:=xlSortNormal End Sub Any help would be appreciated. Thanks!

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• SharePoint Custom Application Page does not recognize tagPrefix defined in custom web.config

  - by Hasan Khan

  I have a custom application page integrated in Centeral Administration. My application pages are placed in a subfolder in Template\Admin folder. I placed my own web.config in my subfolder and added tagPrefixes in the control section. However when I open my application page ASP.NET throws the exception that the tag SharePoint:InputFormTextBox was not recognized. Moving the add tagprefix statements in root web.config solves the problem but thats not acceptable in my case and I can't define them in individual pages either. What am I doing wrong? Or it doesn't work this way? What can i do to achieve this?

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• Updating a Data Source with a Dataset

  - by Paul

  Hi, I need advice. I have asp.net web service and winforms client app. Client call this web method and get dataset. 1. [WebMethod] 2. public DataSet GetSecureDataSet(string id) 3. { 4. 5. 6. SqlConnection conn = null; 7. SqlDataAdapter da = null; 8. DataSet ds; 9. try 10. { 11. 12. string sql = "SELECT * FROM Tab1"; 13. 14. string connStr = WebConfigurationManager.ConnectionStrings["Employees"].ConnectionString; 15. 16. conn = new SqlConnection(connStr); 17. conn.Open(); 18. 19. da = new SqlDataAdapter(sql, conn); 20. 21. ds = new DataSet(); 22. da.Fill(ds, "Tab1"); 23. 24. return ds; 25. } 26. catch (Exception ex) 27. { 28. throw ex; 29. } 30. finally 31. { 32. if (conn != null) 33. conn.Close(); 34. if (da != null) 35. da.Dispose(); 36. } 37. } After he finish work he call this update web method. He can add, delete and edit rows in table in dataset. [WebMethod] public bool SecureUpdateDataSet(DataSet ds) { SqlConnection conn = null; SqlDataAdapter da = null; SqlCommand cmd = null; try { DataTable delRows = ds.Tables[0].GetChanges(DataRowState.Deleted); DataTable addRows = ds.Tables[0].GetChanges(DataRowState.Added); DataTable editRows = ds.Tables[0].GetChanges(DataRowState.Modified); string sql = "UPDATE * FROM Tab1"; string connStr = WebConfigurationManager.ConnectionStrings["Employees"].ConnectionString; conn = new SqlConnection(connStr); conn.Open(); cmd = new SqlCommand(sql, conn); da = new SqlDataAdapter(sql, conn); if (addRows != null) { da.Update(addRows); } if (delRows != null) { da.Update(delRows); } if (editRows != null) { da.Update(editRows); } return true; } catch (Exception ex) { throw ex; } finally { if (conn != null) conn.Close(); if (da != null) da.Dispose(); } } Code on client side 1. //on client side is dataset bind to datagridview 2. Dataset ds = proxy.GetSecureDataSet(""); 3. ds.AcceptChanges(); 4. 5. //edit dataset 6. 7. 8. //get changes 9. DataSet editDataset = ds.GetChanges(); 10. 11. //call update webmethod 12. proxy.SecureUpdateDataSet(editDataSet) But it finish with this error : System.Web.Services.Protocols.SoapException: Server was unable to process request. --- System.InvalidOperationException: Update requires a valid UpdateCommand when passed DataRow collection with modified rows. at WebService.Service.SecureUpdateDataSet(DataSet ds) in D:\Diploma.Work\WebService\Service1.asmx.cs:line 489 Problem is with SQL Commad, client can add, delete and insert row, how can write a corect SQL command.... any advice please? Thank you

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• Unkillable console windows

  - by rep_movsd

  I'm developing an OpenGL based 2d simulation with GLUT under Visual C++ 2008, sometimes when I have an assert() or unhandled exception and break into the debugger, the GLUT display window closes, but the console window remains open.They just cant be killed!!! They do not show up with Task manager, Process Explorer or any other tool, I cannot find the window handle using the Spy++ tool either. Worst thing is they prevent my system (Windows XP) from shutting down, I have to manually poweroff (and of course I have to run chkdsk on my drives and invariably it finds and fixes minor errors after bad shutdowns) Has anyone come across such an issue?

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• Custom Validation on jquery validate plugin, need to count element in a multiple select

  - by 0plus1

  I have a multiple select, and I need to force the user to choose maximum two options, nothing more. I'm trying this: jQuery.validator.addMethod("morethantwo", function(value, element) { var foo = []; $(element+' :selected').each(function(i, selected){ foo[i] = $(selected).text(); alert(foo[i]); }); return true; },"Max two options." ); The problem is that I get a: uncaught exception: Syntax error, unrecognized expression: [object HTMLSelectElement] error. While if I do this: $(element).each(function(i, selected){ foo[i] = $(selected).text(); alert(foo[i]); }); It works but I get all the options in the select. Why is that? Is this the correct road to walk? Are there better ways to do this kind of check? Thank you very much!

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• Can a http server detect that a client has cancelled their request?

  - by Nick Retallack

  My web app must process and serve a lot of data to display certain pages. Sometimes, the user closes or refreshes a page while the server is still busy processing it. This means the server will continue to process data for several minutes only to send it to a client who is no longer listening. Is it possible to detect that the connection has been broken, and react to it? In this particular project, we're using Django and NginX, or Apache. I assumed this is possible because the Django development server appears to react to cancelled requests by printing Broken Pipe exceptions. I'd love to have it raise an exception that my application code could catch. Alternatively, I could register an unload event handler on the page in question, have it do a synchronous XHR requesting that the previous request from this user be cancelled, and do some kind of inter-process communication to make it so. Perhaps if the slower data processing were handed to another process that I could more easily identify and kill, without killing the responding process...

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• Choosing between ExtJS and YUI based of application parameters.

  - by Kabeer

  Hello. I need help in taking call to choose between Ext JS and YUI libraries. Here are the key factors I have derived from my application requirements & development process: Complex, windows forms like controls Widgets, Layouts, Utilities Inter widget communication Easy to extend Easy to learn Intuitive & concise coding Strong exception handling Active support / community To update with upcoming technologies (HTML5, etc.) Skins & Themes to be easy to change Skins & Themes to support variety (a text box for different context to appear differently) Support & Utilities for standard protocols (XmlHttp, JSON) Good performance (responsive) Cost is not crucial, but I don't mind saving :)

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• C# ArrayList calling on a constructor class

  - by EvanRyan

  I'm aware that an ArrayList is probably not the way to go with this particular situation, but humor me and help me lose this headache. I have a constructor class like follows: class Peoples { public string LastName; public string FirstName; public Peoples(string lastName, string firstName) { LastName = lastName; FirstName = firstName; } } And I'm trying to build an ArrayList to build a collection by calling on this constructor. However, I can't seem to find a way to build the ArrayList properly when I use this constructor. I have figured it out with an Array, but not an ArrayList. I have been messing with this to try to build my ArrayList: ArrayList people = new ArrayList(); people[0] = new Peoples("Bar", "Foo"); people[1] = new Peoples("Quirk", "Baz"); people[2] = new Peopls("Get", "Gad"); My indexing is apparently out of range according to the exception I get.

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• ASIHTTP: addOperation when other threads are running

  - by user262325

  Hello everyone I have a project using ASIHTTP to multi download files from a site when I add a new request: [networkQueue cancelAllOperations]; [networkQueue setDownloadProgressDelegate:a]; [networkQueue setDelegate:self]; [networkQueue setRequestDidFinishSelector:@selector(requestDone:)]; NSURL *url = [NSURL URLWithString:@"http://www.google.com"]; ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url]; [request setDelegate:self]; [request startAsynchronous]; [networkQueue addOperation:request]; [networkQueue go]; it reported: * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '* -[ASINetworkQueue addOperation:]: operation is executing and cannot be enqueued' It looks like I can not add a new request when others are running. Welcome any comment Thanks interdev

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• entity framework inserting a many-to-many relationship between two existing objects while updating

  - by redbluegreen

  I'm trying to do this: using(var context = new SampleEntities()) { User user = select a user from database; //Update user's properties user.Username = ... user.Website = ... //Add a role Role role = select a role from database //trying to insert into table UserRoles which has columns (UserID, RoleID) user.Roles.Add(role); //Apply property changes context.ApplyPropertyChanges("Users", user); context.SaveChanges(); } However, I get an exception telling me that "The existing object in the ObjectContext is in the Added state" and can't "ApplyPropertyChanges". If "ApplyPropertyChanges()" is removed, it adds a User. What orders should these methods be called? I don't need to do them separately right? Thanks.

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• Ruby socket server thread question: how to send to all clients?

  - by Paul

  I'm making a TCP socket server(ruby). A thread is created for each connected client. At some point I try to send data to all connected clients. The thread aborts on exception while trying.(ruby 1.8.7) require 'socket' # I test it home right now server = TCPServer.new('localhost', 12345); while(session = server.accept) #Here is the thread being created Thread.new(session) do |s| while(msg = s.gets) #Here is the part that causes the error Thread.list.each { |aThread| if aThread != Thread.current #So what I want it to do is to echo the message from one client to all others #But for some reason it doesn't, and aborts on the following string aThread.print "#{msg}\0" end } end end Thread.abort_on_exception = true end What am I doing wrong?

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• UILocalNotification crash

  - by Miky Mike

  Hi everyone, could you please help me ? I'm setting up an UILocalNotification and It crashes when I try to set its userInfo dictionary. My dictionary is not empty (It contains 88 objects). Here is the code : NSDictionary* myUserInfo = [NSDictionary dictionaryWithObject: fetchedObjects forKey: @"textbody"]; UILocalNotification *localNotif = [[UILocalNotification alloc] init]; if (localNotif == nil) return; // défining the interval NSTimeInterval oneMinute = 60; localNotif.timeZone = [NSTimeZone localTimeZone]; NSDate *fireDate = [[NSDate alloc]initWithTimeIntervalSinceNow:oneMinute]; localNotif.fireDate = fireDate; localNotif.userInfo = myUserInfo; [fetchedObjects release]; and the console gives me this : Property list invalid for format: 200 *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'unable to serialize userInfo: (null)' Any idea ?

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• Ruby 1.8.7 compatibility

  - by Sebastian

  I had a exception when I switch to Ruby 1.8.7 on Snow Leopard ArgumentError: wrong number of arguments (1 for 0) /Library/Ruby/Gems/1.8/gems/activerecord-1.15.5/lib/active_record/connection_adapters/abstract/quoting.rb:27:in 'to_s' /Library/Ruby/Gems/1.8/gems/activerecord-1.15.5/lib/active_record/connection_adapters/abstract/quoting.rb:27:in 'quote' /Library/Ruby/Gems/1.8/gems/activerecord-1.15.5/lib/active_record/connection_adapters/mysql_adapter.rb:190:in 'quote' /Library/Ruby/Gems/1.8/gems/activerecord-1.15.5/lib/active_record/base.rb:2042:in 'quote_value' /Library/Ruby/Gems/1.8/gems/activerecord-1.15.5/lib/active_record/base.rb:2034:in 'attributes_with_quotes' Application uses Rails 1.2.5: there is no chance to update rails in this app. Somebody have solution?

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• How to convert culture specific double using TypeConverter?

  - by Christian

  Hi I have a problem with the TypeConverter class. It works fine with CultureInvariant values but cannot convert specific cultures like english 1000 seperators. Below is a small test program that I cannot get to work. using System; using System.Globalization; using System.ComponentModel; namespace TestConvertCulture { class Program { static void Main() { try { var culture = new CultureInfo( "en" ); TypeConverter typeConverter = TypeDescriptor.GetConverter( typeof ( double ) ); double value = (double)typeConverter.ConvertFromString( null, culture, "2,999.95" ); Console.WriteLine( "Value: " + value ); } catch( Exception e ) { Console.WriteLine( "Error: " + e.Message ); } } } }

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• Custom Types in WCF Rest

  - by user316341

  I am using the Rest Singleton WCF Service temple from the Rest Starter Kit. The temples uses sample item as its sample Item. i am attempting to replace that sample ITem with a custom type from web reference in my ASP.Net project .dll. The types and name spaces are found and i can replace the sample item in the code. when i run the application i get this error: "Exception has been thrown by the target of an invocation." when this line is executed "return new SingletonServiceHost(serviceType, baseAddresses);" <%@ ServiceHost Language="C#" Debug="true" Service="SAUDServices.Service" Factory="SAUDServices.AppServiceHostFactory"%> using System; using System.ServiceModel; using System.ServiceModel.Activation; using Microsoft.ServiceModel.Web.SpecializedServices; using Stretchatyourdesk; namespace SAUDServices { class AppServiceHostFactory : ServiceHostFactory { protected override ServiceHost CreateServiceHost(Type serviceType, Uri[] baseAddresses) { return new SingletonServiceHost(serviceType, baseAddresses); } } }

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• Why is there no assertError() function in FlexUnit?

  - by lorennorman

  It seems that most XUnit testing frameworks provide assertions for the times when you want to assert that a given operation will thrown an exception (or an Error in AS3 parlance.) Is there some "standard" way of doing this that I am overlooking, which would explain the absence of an assertError() assertion included with FlexUnit? I know HOW to implement such a thing, and I will probably add it to my FlexUnit (go open source!), but it seems like such a glaring omission that I'm left wondering if I'm just doing it wrong. Anyone have thoughts on this?

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• IIS 7.5 powershell module usage issues

  - by pmcgrath

  Has anyone managed to use this module with success, i'm running 32bit Windows 7, where i have opened an administrator shell using run as administrator, i have imported the WebAdministration module and then attempted to use the commands with some issues, have provided two examples here Websites I created a web site with the following command new-website -name testsite -port 80 -hostheader testsite -physicalpath c:\temp Then i attempted to get the sites details using the command get-website -name testsite but it always returns all sites, seems to ignore the -name parameter. Only way i can get the site is using a filter get-website | ? { $_.name -eq 'testsite' } | get-member When i use appcmd it works as expected using the following command C:\> C:\Windows\System32\inetsrv\appcmd.exe list site testsite AppPools When i try to list the apppools using the following command dir iis:\apppools i get the following error Get-ChildItem : Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED)) Yet when i use appcmd as follows i get all the apppools as expected without any error C:\Windows\System32\inetsrv\appcmd.exe list apppool Has anyone successfully managed to use the WebAdministration module ? Thanks in advance Pat

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• POST with HTTPBuilder -> NullPointerException?

  - by Stefan Kendall

  I'm trying to make a simple HTTP POST request, and I have no idea why the following is failing. I tried following the examples here, and I don't see where I'm going wrong. Exception java.lang.NullPointerException at groovyx.net.http.HTTPBuilder$RequestConfigDelegate.setBody(HTTPBuilder.java:1131) ... Code def List<String> search(String query, int maxResults) { def http = new HTTPBuilder("mywebsite") http.request(POST) { uri.path = '/search/' body = [string1: "", query: "test"] requestContentType = URLENC headers.'User-Agent' = 'Mozilla/5.0 Ubuntu/8.10 Firefox/3.0.4' response.success = { resp, InputStreamReader reader -> assert resp.statusLine.statusCode == 200 String data = reader.readLines().join() println data } } [] }

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• list-index hibernate ?

  - by kumar kasimala

  Hi I am bit confusion of list index type,my mapping file has like below <list name="transactionItems" cascade="save-update,delete-orphan" lazy="false"> <key column="TRANSACTION_ID" /> <list-index column="IDX" /> <one-to-many class="TransactionItem" /> </list> whenever hibernate load a mapped object,its through exception null index column for collection:transactionItems please suggest me what can be the problem here. can you exaplain a bit about list-index? thanks & Regards kumar kasiamla India,Hyderabad.

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• Fluent NHib causing visual studio 2010 hanging at runtime

  - by Berryl

  Just installed and migrated a 2008 solution on Vista ultimate 64 and .net 4.0. Everything builds and tests run surprisingly well but I got the hang description below while trying to run the app under SQLite. It turns out that the hang has got something to do when the call is made for FNH to build the session factory during a run, the only feedback I get is that the database wasn't configure properly without any inner exception. The strange part is that the exact code works perfectly under tests. Any clues? Description: A problem caused this program to stop interacting with Windows. Problem signature: Problem Event Name: AppHangB1 Application Name: devenv.exe Application Version: 10.0.30319.1 Application Timestamp: 4ba1fab3 Hang Signature: b9ed Hang Type: 6152 OS Version: 6.0.6002.2.2.0.256.1 Locale ID: 1033 Additional Hang Signature 1: 005de38e6b4bb3afd8e147932c6431cc Additional Hang Signature 2: d54c Additional Hang Signature 3: 05f671c8289bf8dd31e6ccfe265baa77 Additional Hang Signature 4: 784c Additional Hang Signature 5: c8207f54dadf3eb38dfcf1ae152f4229 Additional Hang Signature 6: ff83 Additional Hang Signature 7: 220932152f3f04fffb6ca3abf15e6dc6

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• Returning a JSON view in combination with a boolean

  - by Rody van Sambeek

  What i would like to accomplish is that a partiel view contains a form. This form is posted using JQuery $.post. After a successfull post javascript picks up the result and uses JQuery's html() method to fill a container with the result. However now I don't want to return the Partial View, but a JSON object containing that partial view and some other object (Success - bool in this case). I tried it with the following code: [AcceptVerbs(HttpVerbs.Post)] public ActionResult Edit(int id, Item item) { if (ModelState.IsValid) { try { // ... return Json(new { Success = true, PartialView = PartialView("Edit", item) }); } catch(Exception ex) { // ... } } return Json(new { Success = false, PartialView = PartialView("Edit", item) }); } However I don't get the HTML in this JSON object and can't use html() to show the result. I tried using this method to render the partial as Html and send that. However this fails on the RenderControl(tw) method with a: The method or operation is not implemented.

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