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• Can't run ASP.NET MVC 2 web app on IIS 7.5

  - by Portman

  I'm trying to run an ASP.NET MVC 2 web application under IIS on Windows 7, but I get a 403.14 error. Here are the steps to reproduce: Open Visual Studio 2010 Create a new ASP.NET MVC 2 project called MvcApplication1 Shift+F5 to run the app. You should see http://localhost:{random_port}/ and the page will render correctly. Click on MvcApplication1, and select "Properties". Go to the "Web" section. Select "Use Local IIS Web server" and create a virtual directory. Save. Shift+F5 to run the app. You should see http://localhost/MvcApplication1/ and an IIS error HTTP Error 403.14 - Forbidden The Web server is configured to not list the contents of this directory.. It's clear that for whatever reason, ASP.NET routing is not working correctly. Things I've already thought of and tried: Verified that all IIS features are enabled in "Turn Windows features on or off". Verified that the default website is configured to use .NET 4.0 Reassigned ASP.NET v4 scripmaps via aspnet_regiis -i in the v4.0.30319 directory. Here's the most amazing part - this is on a just-built machine. New copy of Windows 7 x64 Ultimate, clean install of Visual Studio 2010 Premium, no other websites and no other work performed. Anything else I can try?

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• log4net and .net Framework 4.0

  - by Aneef

  Hi Guys, I was having issues in log4net when i updated my solutions to .net 4.0 , and then i downloaded the source of it and built log4net and targeted it to .net 4.0 and used it in my projects. initially when i referred log4net that is targeted to run time 2.0 it complied and run the application but log did not work. now when i run my project with log4net targeted to .net 4.0 i get the error " The type initializer for 'Log4NetTest.TestLog' threw an exception." Any Idea how to solve this

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• VB.Net Dynamically Load DLL

  - by hermiod

  I am trying to write some code that will allow me to dynamically load DLLs into my application, depending on an application setting. The idea is that the database to be accessed is set in the application settings and then this loads the appropriate DLL and assigns it to an instance of an interface for my application to access. This is my code at the moment: Dim SQLDataSource As ICRDataLayer Dim ass As Assembly = Assembly. _ LoadFrom("M:\MyProgs\WebService\DynamicAssemblyLoading\SQLServer\bin\Debug\SQLServer.dll") Dim obj As Object = ass.CreateInstance(GetType(ICRDataLayer).ToString, True) SQLDataSource = DirectCast(obj, ICRDataLayer) MsgBox(SQLDataSource.ModuleName & vbNewLine & SQLDataSource.ModuleDescription) I have my interface (ICRDataLayer) and the SQLServer.dll contains an implementation of this interface. I just want to load the assembly and assign it to the SQLDataSource object. The above code just doesn't work. There are no exceptions thrown, even the Msgbox doesn't appear. I would've expected at least the messagebox appearing with nothing in it, but even this doesn't happen! Is there a way to determine if the loaded assembly implements a specific interface. I tried the below but this also doesn't seem to do anything! For Each loadedType As Type In ass.GetTypes If GetType(ICRDataLayer).IsAssignableFrom(loadedType) Then Dim obj1 As Object = ass.CreateInstance(GetType(ICRDataLayer).ToString, True) SQLDataSource = DirectCast(obj1, ICRDataLayer) End If Next EDIT: New code from Vlad's examples: Module CRDataLayerFactory Sub New() End Sub ' class name is a contract, ' should be the same for all plugins Private Function Create() As ICRDataLayer Return New SQLServer() End Function End Module Above is Module in each DLL, converted from Vlad's C# example. Below is my code to bring in the DLL: Dim SQLDataSource As ICRDataLayer Dim ass As Assembly = Assembly. _ LoadFrom("M:\MyProgs\WebService\DynamicAssemblyLoading\SQLServer\bin\Debug\SQLServer.dll") Dim factory As Object = ass.CreateInstance("CRDataLayerFactory", True) Dim t As Type = factory.GetType Dim method As MethodInfo = t.GetMethod("Create") Dim obj As Object = method.Invoke(factory, Nothing) SQLDataSource = DirectCast(obj, ICRDataLayer) EDIT: Implementation based on Paul Kohler's code Dim file As String For Each file In Directory.GetFiles(baseDir, searchPattern, SearchOption.TopDirectoryOnly) Dim assemblyType As System.Type For Each assemblyType In Assembly.LoadFrom(file).GetTypes Dim s As System.Type() = assemblyType.GetInterfaces For Each ty As System.Type In s If ty.Name.Contains("ICRDataLayer") Then MsgBox(ty.Name) plugin = DirectCast(Activator.CreateInstance(assemblyType), ICRDataLayer) MessageBox.Show(plugin.ModuleName) End If Next I get the following error with this code: Unable to cast object of type 'SQLServer.CRDataSource.SQLServer' to type 'DynamicAssemblyLoading.ICRDataLayer'. The actual DLL is in a different project called SQLServer in the same solution as my implementation code. CRDataSource is a namespace and SQLServer is the actual class name of the DLL. The SQLServer class implements ICRDataLayer, so I don't understand why it wouldn't be able to cast it. Is the naming significant here, I wouldn't have thought it would be.

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• How to process a .proto file using protobuf-net

  - by JustSmith

  I have stated using the protobuf-net lib to communication between some of the programs I'm maintaining. I have also been able to decode messages from C# to Ruby. My ruby ProtoBuf lib is using a .proto file to generate the ruby code. In the interest of having to make changes in as few places as possible I would like to have protobuf-net use the same .proto file. Looking though the protobuf-net folders there is a Dll named ProtoBufGenerator and the protobuf exe but I cant find any instructions on if I can make protobuf-net work this way. Is this possible?

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• ADO.NET Entity Framework with OLE DB Access Data Source

  - by Tim Long

  Has anyone found a way to make the ADO.NET Entity Framework work with OLE DB or ODBC data sources? Specifically, I need to work with an Access database that for various reasons can't be upsized to SQL. This MSDN page says: The .NET Framework includes ADO.NET providers for direct access to Microsoft SQL Server (including Entity Framework support), and for indirect access to other databases with ODBC and OLE DB drivers (see .NET Framework Data Providers). For direct access to other databases, many third-party providers are available as shown below. The reference to "indirect access to other databases" is tantalising but I confess that I am hopelessly confused by all the different names for data access technology.

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• Fancybox - ASP.NET button not working

  - by kape123

  I've just determined using Firebug that when Fancybox window is created it actually takes all of my ASP.NET controls (contained in DIV tag) and puts them outside FORM tag. So I guess this is the reason why then ASP.NET button doesn't do anything - it is placed outside form. So, do you have any suggestions how I can prevent this (or make that ASP.NET button work), other than using completely different modal dialog? Thanks in advance.

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• Hosting WCF service in IIS 7 (WAS) with net.tcp binding on TWO tcp ports

  - by Yuri

  By default IIS 7 Web site has net.tcp binding with "808:" binding information string. If i add another net.tcp binding with "xxx:" exception occurs: This collection already contains an address with scheme net.tcp. There can be at most one address per scheme in this collection. Parameter name: item How can i solve this problem and listen my service at TWO ports?

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• nservicebus compiler error "reference required to assembly nServicebus" in vb.net programs

  - by mgcain

  I downloaded the nServicebus binaries as of May 17th and have two different vb.net projects (one in .net 3.5, the other in .net 4.0) that both have the error "Reference to Assembly nServicebus, Version 2.0.0.1145, culture=neutral, PublicKeyToken=9fc386479f8a226c containing the type NServicebus.IStartable. Add one to your project. I have in the references already nServicebus.dll, nservicebus.Core.dll, and log4net.dll

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• Persistent workflow with durable delay activity hosted in ASP.NET

  - by Petr Felzmann

  The situation: a workflow hosted in ASP.NET application using WorkflowServiceHost and contains durable delay. The workflow is currently inside the delay activity and was persisted into database. Then the application pool, under which the ASP.NET application is running, goes to be recycled (e.g. by web.config change) and there are no more http requests to the ASP.NET application. And now is the time when delay activity should finish and next activity in the workflow should be executed. Does it mean the next activity will not be executed until any request to the ASP.NET application because the app pool was recycled?

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• Using PSExec from within CruiseControl .NET

  - by JayRu

  Hi All, I'm trying to call a PSExec task from CC.NET and running into some difficulties. Here's the CC project <project name="Test"> <tasks> <exec> <executable>C:\Utilities\psexec.exe</executable> <buildArgs>-u [UNAME] -p [PWD] "C:\Utilities\Joel.bat"</buildArgs> </exec> </tasks> </project> Here's the source of Joel.bat CLS @ECHO OFF What happens is that the first time I force the project to build, it runs successfully. The PSExec task is kicked off and the Joel.bat file is executed. I get some information in the build log about exit codes, but the task is successful. Here's the build log output. PsExec v1.97 - Execute processes remotely Copyright (C) 2001-2009 Mark Russinovich Sysinternals - www.sysinternals.com C:\Utilities\Joel.bat exited with error code 0. The second time I force the build I get the dreaded "The Application failed to initialize properly (0xc0000142)" error message. I can't ever run the build more than once More so, if I try to shut down the cruise control .net service from within the services MSC, it can't. It's like there's a lock somewhere that is taken and not released. The only way I can kill the service is by killing the ccservices.exe process. I've tried the exact same thing using an nant task and gotten the exact same results. It works the first time, and fails the second and I can't shutdown the process. I'm not sure if this is an issue with CC.NET or with PSEXEC (or me of course). Anybody got any ideas? I'm posting to the CC.NET forums as well. I'm using the latest and greatest of PSExec and 1.4.4 of CC.NET. Thx, Joel

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• ASP .NET 2.0 C# AjaxPro RegisterTypeForAjax

  - by Dan7el

  I am wondering if RegisterTypeForAjax isn't working correctly. I am getting the error noted at the end of the code block below. Sample is from here: http://www.ajaxtutorials.com/asp-net-ajax-quickstart/tutorial-introduction-to-ajax-in-asp-net-2-0-and-c/ Any ideas as to why I'm getting this error? Thanks. ASP .NET 2.0 C# Here is the code-behind: using System; using System.Data; using System.Data.SqlClient; using System.Configuration; using System.Collections; using System.Collections.Generic; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using AjaxPro; namespace WebApplication1 { public partial class Ajax_CSharp : System.Web.UI.Page { protected override void OnInit( EventArgs e ) { base.OnInit( e ); Load += new EventHandler( Page_Load ); } protected void Page_Load( object sender, EventArgs e ) { Utility.RegisterTypeForAjax( typeof( Ajax_CSharp ) ); } [ AjaxMethod( HttpSessionStateRequirement.ReadWrite ) ] public string GetData() { // method gets a row from the db and returns a string. } } Here is the ASPX page: <%@ Page Language="C#" AutoEventWireup="false" CodeBehind="Default.aspx.cs" Inherits="WebApplication1.Ajax_CSharp" % Untitled Page function GetData() { var response; Ajax_CSharp.GetData( GetData_CallBack ); } function GetData_CallBack( response ) { var response = response.value; if ( response == "Empty" ) { alert( "No Record Found." ); } else if ( response == "Error" ) { alert( "An Error Occurred in Accessing the Database !!!" ); } else { var arr = response.split( "~" ); var empID = arr[0].split( "," ); var empName = arr[1].split( "," ); document.getElementById( 'dlistEmployee' ).length = 0; for ( var i = 0; i < empID.Length; i++ ) { var o = document.createElement( "option" ); o.value = empID[i]; o.text = empName[i]; document.getElementById( 'dlistEmployee' ).add( o ); } } } function dodisplay() { var selIndex = document.getElementById( "dlistEmployee" ).selectedIndex; var empName = document.getElementById( "dlistEmployee" ).options( selIndex ).text; var empID = document.getElementById( "dlistEmployee" ).options( selIndex ).value; document.getElementById( "lblResult" ).innerHTML = "You have selected " + empName + " (ID: " + empID + " )"; } </script>    Run it and click on the button and I get this error: Webpage error details User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; InfoPath.2; MS-RTC LM 8) Timestamp: Mon, 26 Apr 2010 17:22:44 UTC Message: 'Ajax_CSharp' is undefined Line: 13 Char: 11 Code: 0 URI: http://localhost:4678/Default.aspx

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• ASP.NET client to stateful java webservice client (metro)

  - by hubertg

  Hi I have a webservice with the following annotations: @WebService @HttpSessionScope @Stateful @Addressing Now I created a ASP.NET (c#) client for this webservice, but when I call a method the following error is returned: This is a stateful web service and {http://jax-ws.dev.java.net/xml/ns/}objectId header is required. How can I tell ASP.net to switch to stateful mode? Is this possible at all? Thanks any advice/examples.

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• .Net Framework currputed

  - by Samsudeen B

  Hi, We are facing a problem of .Net framework corruption for one our clients with the following environment OS : Windows 2008 Server SP2; Framework : .NET Framework 3.5 SP1; Application Details Database : SQL Server 2008; Server : WCF hosted webservice; Client : WPF based UI; Problem : The Config files inside the "..\Windows\Microsoft.NET\Framework\v2.0.50727\CONFIG" are suddenly deleted and and not able to work with my application. Not able to repair .NET / Run SQL Server. The only option is to restore the earlier images versions of that machine Any help is much appreciated sam

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• Java DnD - Java Component to .Net Component

  - by JT703

  I'm trying to use Java drag and drop to drag an object from a JTree into a native .NET component that is embedded in my app. This .NET component only accepts File objects, so I'm having trouble with the DnD's Transferable object. Anyone know how I can make this Transferable "look" like a file to this .Net component? p.s. I need this answer as Quickly as possible. Thanks!

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• C# [Mono]: MPAPI vs MPI.NET vs ?

  - by Olexandr

  Hi. I'm working on college project. I have to develop distributed computing system. And i decided to do some research to make this task fun :) I've found MPAPI and MPI.NET libraries. Yes, they are .NET libraries(Mono, in my case). Why .NET ? I'm choosing between Ada, C++ and C# so to i've choosed C# because of lower development time. I have two goals: Simplicity; Performance; Cluster computing. So, what to choose - MPAPI or MPI.NET or something else ?

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• ClickOnce: The required version of the .NET Framework is not installed on this computer

  - by Martin

  I have been getting the error "The required version of the .NET Framework is not installed on this computer." (Event Id 4096 in Event log) when trying to install a VSTO application from both a ClickOnce deployment and a local copy. This is interesting as the .NET framework is installed (on my 32bit Windows 7 PC) and the VSTO application was developed on the self same machine (and works in Visual Studio 2008). Does anybody has an idea why I could get this exception? Name: From: http://localhost/BlaBla.vsto "The required version of the .NET Framework is not installed on this computer." ********** Exception Text ********** Microsoft.VisualStudio.Tools.Applications.Deployment.InstallAddInFailedException: "The required version of the .NET Framework is not installed on this computer." at Microsoft.VisualStudio.Tools.Applications.Deployment.ClickOnceAddInDeploymentManager.InstallAddIn() at Microsoft.VisualStudio.Tools.Office.Runtime.SolutionInstaller.<c__DisplayClass7.b__0()

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• .Net HttpWebRequest.GetResponse() raises exception when http status code 400 (bad request) is return

  - by chefsmart

  I am in a situation where when I get an HTTP 400 code from the server, it is a completely legal way of the server telling me what was wrong with my request (using a message in the HTTP response content) However, the .NET HttpWebRequest raises an exception when the status code is 400. How do I handle this? For me a 400 is completely legal, and rather helpful. The HTTP content has some important information but the exception throws me off my path.

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• Where is the .NET Framework Global Assembly Cache?

  - by Carlos Loth

  Hi, I installed the VS2010 and .NET 4.0, then I compiled an assembly and ran the gacutil using the exe available on %ProgramFiles%\Microsoft SDKs\Windows\v7.0A\Bin\NETFX 4.0 Tools The output of the executable said the assembly was sucessfully installed on Global Assembly Cache. However, when I go to %WINDIR%\assembly folder I cannot find the assembly I installed using the .NET Framework 4.0 gacutil. I've seen some posts saying the .NET Framework 4.0 has a separated GAC, but what I haven't found was where it is located. May someone to help me to check where can I see the Global Assembly Cache of .NET Framework, as it used to work on previous version (%WINDIR%\assembly)?

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• ASP.NET validation not executing in a JavaScript showModalDialog call

  - by Michael Kniskern

  I currently open a pop up window from my parent page using using a JavaScript .showModalDialog function. The pop up window contains some ASP.NET validation controls which do not display when the user clicks the ASP.NET button to submit the form. If there is an error on the page, the validation message(s) do not display, the record is not updated on the server side and the pop window closes. (The asp.net validation controls do not stop the pop up window from doing a server postback) Has anyone expereinced this behavior before and is there any way to prevent it? Here is my showModalDialong call source code: function OpenChildWindow(id) { var sFeatures = sFeatures="dialogHeight: 525px;"; sFeatures += "dialogWidth: 900px;"; sFeatures += "scroll: yes;"; sFeatures += "status: no;"; sFeatures += "resizeable: no;"; var url = "MyPopUp.aspx?ID=" + id; var childName = "ChildForm"; entryWindow = window.showModalDialog(url, childName, sFeatures); if (entryWindow == true) { window.document.getElementById("<%= btnUpdateParent.ClientID %>").click(); } } Note: When the pop up modal is closed, a ASP.NET button is "clicked" to update an ASP.NET UpdatePanel on the parent to show the changes to the record modified in the pop up window.

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• Modal MessageBox for ASP.NET without jQuery

  - by Joe

  I have an assembly with custom ASP.NET server controls that is used in several, mostly in-house, ASP.NET 2.0 applications. The server controls use simple modal popup messageboxes, which are currently implemented using the javascript alert and confirm functions. I want to release a new version of this assembly that uses a better solution for messageboxes, including support for Yes/No buttons. The appearance would be something like a simplified version of the Ajax Control Toolkit ModalPopup extender (sample here). My constraints are that this should be as easy as possible to integrate into existing ASP.NET 2.0 applications without introducing new dependencies: ideally just drop in a new version of the assembly, that contains all the javascript it needs as an embedded resource, and possibly a CSS file. Because of this constraint, I am not considering solutions I've seen that use jquery, or the ASP.NET Ajax Control Toolkit, which appears to require adding elements to pages that use the extenders (ScriptManagers and the like). Any recommendations?

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• Silverlight/.Net RIA Services - Authorization Working Sample!??!

  - by Goober

  Hello! I have followed numerous tutorials and walkthroughs/blogs about the capabilities that Ria Services brings to the table when using Silverlight with ASP.Net. Essentially I am looking for a live working example of the authorization functionality that Ria Services can apparently take hold of from ASP.Net. (Even better if it works with ASP.NET MVC too) Example of failed to work Ria Services authorization implementation Navigate to the live demo link on this page....fails This one may work however I couldn't get it to work on my office computer(strange setup that seems to break code for no reason)

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• Using EHCache with ASP.NET?

  - by frankadelic

  I have heard of .NET APIs for memcached. Is there any equivalent for EHCache? I am envisioning a cluster of linux machines running EHCache, serving cached objects for a farm of ASP.NET webservers. Is this practical? Can this be done without installing Java on the ASP.NET servers?

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• What is Medium Trust in Asp.net?

  - by Amitabh

  What is Medium Trust in Asp.net?

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• JqGrid don't work in ASP .NET MVC2

  - by Raouf

  I have a project in ASP.NET MVC1 using VB.NET controlers and JqGrid. it works fine under MVC1. After migrating the project to ASP.NET MVC2, the grid is no longer populated. It seems that there is some new restrictions on returned Jsonresult in MVC2. How to solve this in VB.NET. Controler function populating the jqgrid is something like this : Function GetGridRecordset(ByVal qry As String) As JsonResult Dim result = New JsonResult() ... ... Return result End Function Is there anyone who have a solution? Thank you very much!

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• xmlhttprequest always return with status code 0 for firefox

  - by Neo

  hi, I am trying to make asynchronous calls using xmlhttprequest object so it completely works fine in internet explorer but for firefox it wont work a small code snippet of problem if (req.readyState == 4) { if (req.status == 200) //here firefox gives status code always 0 and for IE works fine { //read response } else { alert("There was a problem with the request."); } }

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