.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

var sreg = response.GetExtension(); return null into mvc-3 application

Posted By:      Posted Date: May 22, 2011    Points: 0   Category :ASP.Net

my webconfig code is:

<?xml version="1.0"?>
  For more information on how to configure your ASP.NET application, please visit

    <section name="dotNetOpenAuth" type="DotNetOpenAuth.Configuration.DotNetOpenAuthSection" requirePermission="false" allowLocation="true"/>
    <sectionGroup name="system.serviceModel">
      <section name="domainServices" type="System.ServiceModel.DomainServices.Hosting.DomainServicesSection, System.ServiceModel.DomainServices.Hosting, Version=, Culture=neutral, PublicKeyToken=31bf3856ad364e35" allowDefinition="MachineToApplication" requirePermission="false" />

          <!-- The following OPTIONAL behavior allows RPs to use SREG only, but be compatible
                    with OPs that use Attribute Exchange (in various formats). -->
          <add type="DotNetOpenAuth.OpenId.Behaviors.AXFetchAsSregTransform, DotNetOpenAuth" />
    <add name="ApplicationServices" connectionStri

View Complete Post

More Related Resource Links

HTTPCONTEXT return null in a DLL in a sharepoint 2010 custom application page?


am having a application page abc.cs file in a class library and abc.aspx in the _forms folder of 14\template  in sharepoint 2010 env.

also i am having another DLL[ say xyz] which  has  2 classes  and some methods.

now i am accessing a  website page with a  querystring http://servername:4444/hoem.aspx?sid=5353535dsadsaddada

I want to get this query string in the abc's onload event and adding it to the http cookie. Now my reqmnt is i want to access the query string using httpcontext.current.request.querstring["sid"]in the second DLL [xyz].

when  tried to access the request.querystring() thr HTTPCONTEXT throws/returns  NULL .

i wonder, why this httpcontext returns null.

how can i access the querystring().

any help is appreciated



Test Run: Web Application HTTP Request-Response Test Automation with JavaScript


Write a simple browser-based request-response test automation using JavaScript that's platform independent and useful when you are working in a highly dynamic environment.

James McCaffrey

MSDN Magazine January 2010

linq and max, if return null return error


hi there
i have this query :

var result2 = (from TH in DB.Threshold
                          where TH.ProductSKUID == int.Parse(HID_ProductSKUID.Value)
                          select TH.ThresholdID).Max();

the problem is that if this query does not find any items, return null, so thow exception
how can i do to return 0??

Is it possible to response SMS automatically in ASP.net when website or web application is closed?

Dear friends, In my problem statement user sends a SMS to GSM Server by mobile phone and the website or web application will return an answer even they be not opened. Is it possible to response SMS automatically in ASP.net when website or web application is closed? Thanks for your help Mahyar

SELECT statement to return NULL by matching data from another table.

Hi,I am fairly new at SQL and I have been struggling for days now trying to find an answer to my problem and i have come to the point where i have run out of ideas and about to give up. I'm hoping someone can put me in the correct path. The problem I have 3 table Table 1 Department" has the following columns: REF, NAME Table 2  "Department_Collection" has the following columns: REF, DEPARTMENT_REF, MANAGER_REF, STORE_REF, ACTIVE Table 3 Store" has the following columns: REF, NAME, STORE_ID  What i am trying to do is to take all the rows in the Department table and get a matching row (DEPARTMENT.NAME, DEPARTMENT_COLLECTION.REF) from the Department_Collection table, if it does not match any then still display DEPARTMENT.NAME but mark DEPARTMENT_COLLECTION.REF as null. I have tried the following select statement but it seem to remove all null values when supplied with a 'storename' SELECT DEPARTMENT.NAME, DEPARTMENT_COLLECTION.REF FROM DEPARTMENT_COLLECTION right outer join DEPARTMENT on DEPARTMENT_COLLECTION.DEPARTMENT_REF = DEPARTMENT.REF left outer join STORE on DEPARTMENT_COLLECTION.STORE_REF = STORE.REF where STORE.NAME = 'storename' order by DEPARTMENT.NAME   Any help will be greatly appreciated. Thanks

BuildManager.GetType returns null until application pool recycles

Our application uses the Enterprise Library's PropertyProxyValidator class to validate user input (v4.1 - Oct 2008).  On occassion, the code will raise an exception saying the source type cannot be found.  This error persists until the application pools recycle at night, at which point everything works again.  It tends to only affect one of the web front ends at a time (there are two). I tracked down where the exception was being raised, and this is the section of code:Type IValidationIntegrationProxy.ValidatedType { get { if (string.IsNullOrEmpty(this.sourceTypeName)) { throw new InvalidOperationException(Resources.ExceptionNullSourceTypeName); } Type validatedType = BuildManager.GetType(this.SourceTypeName, false, false); if (validatedType == null) { throw new InvalidOperationException( string.Format(CultureInfo.CurrentUICulture, Resources.ExceptionInvalidSourceTypeName, this.sourceTypeName)); } return validatedType; } } (As you can see, the value for this.SourceTypeName is shown in the exception and I've checked that it matches exactly.) We have never been able to reproduce this exception and at this point don't have any ideas left as far as causes.  For a while, my suspicion was that it was related to the Temporary ASP.NET Files folder.  The last

Nested controls in UserControl return null (FindControl)

Hi everyone, I have a very weird issue. I have a UserControl that has some controls inside. I want to refer those controls after, in another postback. But when I try to get them the ".Controls" property of my controls returns null. I'm working on vs2008 Here is the sample code: public partial class MyUserControl : System.Web.UI.UserControl { protected void Page_Load(object sender, EventArgs e) { foreach (Control control in this.Controls) { Response.Write(control.ClientID); } } private void MyTable() { Table table = new Table(); TableRow row = new TableRow(); TableCell cell = new TableCell(); CheckBox check = new CheckBox(); check.ID = "theId"; check.Text = "My Check"; check.AutoPostBack = true; cell.Controls.Add(check); row.Cells.Add(cell); check = new CheckBox(); check.ID = "theOther"; check.AutoPostBack = true; check.Text = "My Other Check"; cell = new TableCell(); cell.Controls.Add(check); row.Cells.Add(cell); table.Rows.Add(row); this.Controls.Add(table); } protected override void Render(HtmlTextWriter writer) { MyTable(); base.Render(writer); } } And in the Default.aspx is like:<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.cs" Inherits="Tester.Default" %> &

null response when consume WCF REST API Using Jquery

I have created and hosted my WCF REST API Using WCF REST Starter Kit preview2. Which supports Dynamic Response and Request format type (XML and JSON).Everything is working fine if I consume the service through fiddler or Microsoft.Http and Microsoft.Http.Extensions on cs side. My cs code is as following: private void GetData() { string url = string.Format("http://myhost/Services/UserService.svc/people/"); HttpClient client = new HttpClient(); HttpResponseMessage responseMessage = client.Get(url); responseMessage.EnsureStatusIsSuccessful(); using (responseMessage) { string res = responseMessage.Content.ReadAsString(); Response.Write(res); } } now when I try to consume my service using Jquery Response is comming in IE8 but in Mozilla and Chrome I am getting null response My jquery code is as following : function loadData() { var path = "http://myhost/Services/UserService.svc/people/"; $.ajax({ type: "GET", url: path, contentType: "application/json; charset=utf-8", dataType: "json", async: false, success: function(response) { if (response != null) { displayData(response); } } }); } I am using visual studio 2008. I have also check jqeury call in firebug status shows 200 OK. can anyone help me?

Running a WPF application from a console app and return status/console output from the wpf


I am trying to run a WPF application from a console application (e.g. a .bat file) but need to be able to receive console and error output from the WPF application.

I have console.writeline() and console.error.writeline commands in the WPF application but these are not received by the console application.

I would also like to receive a status value from the WPF on completion.

Is this possible?

If so could you give me a simple example using VB?

calling web service from SSIS return result as null



I got this result

<Result>The result is null. Either the result is null or the Web method returns void.</Result> 
 when I calling web service from SSIS. I setup HTTP connection and tested without any problem; download WSDL without any problem; I did exactly as the link: http://msdn.microsoft.com/en-us/library/ms181267.aspx. From input editor, I selected service and method. For the chosen method, there will be 3 variables (1 input parameter, 2 output parameters). For the input variable, I defined the package variable as string, and copied XML content to the variable as the value. I will select this defined package variable as the input parameter. I then moved to defined output file.
 When I run the simple package, I will get the output file as result as above. What is wron

Data Export to Excel file using "Response.ContentType = "application/csv"


I have developed code to export data to Excel using Response.ContentType = "application/csv". The output Data Excel file loaded with 65536 Rows only, this file is not loaded completely since the limitation of excel is 65536. My Recordcount is more than 700000.

Please any one let me know how I can Export Data to Excel file over than 65536 Rows.

Email: thamaraiselvann@ayso.org

SPContext.Current.Web.CurrentUser null in application page on 2008 r2 server

With my current situation I have:
a wss3 development environment on a 2003 R2 server
then a production 2008 r2 server.

For some reason on the 2008 server the SPContext.Current.Web.CurrentUser object is null for users who are site collection administrators but may not have permission to log into the server itself; however, on the 2003 R2 server the code works fine for those users.
When googling around, I had seen something about nt permissions on the bin folder sometimes being and issue until asp.net cache picks up the dll but this is a page in the _layouts directory and the code is in the .aspx page itself. It works fine for me as a system administrator on either machine.

Any suggestions? Thanks.

Return ReadOnlyCollection from WCF service and use it in Silverlight 3 client application

Hi all!

I have a solution containing of 3 parts: wcf service, wpf app and silverlight 3 app.
Both wpf app and silverlight app use wcf service to get a collection of objects.

The point is that my business requirements insistently tell me to return ReadOnlyCollection<T> from wcf service.
When I try to do it I have Serialization exception in silverlight client app. But it's ok in wpf app.

Then, I haven't started the investigation for such strange thing (different behavior in wpf and silverlight) and decided to implement custom serialization, returning the ICollection interface and trying to get ReadOnlyCollection on deserializing.  But wcf service proxy class in silverlight app returned Array of T, not ReadOnlyCollection<T> as proxy in wpf did.

So, the question is: Is it possible to return ReadOnlyCollection<T> from WCF service?

Any help is appreciate.


Response.Redirect not working on an UpdatePanel if redirecting to a ClickOnce application (in some c



I have a strange issue. I am using the AjaxControlToolkit 3.0.30930 (the most recent). I have a very simple page with an UpdatePanel. A button on the UpdatePanel invokes Response.Redirect and passes the URL of a Click Once application on the same server. This works well if I run the website on my local system (Windows 7, IIS 7.5).

If I run the website on a remote system (Windows Server 2008, IIS 7.5, same settings) the redirect simply does not work when invoking the page from remote (using the IP address). Instead a postback is executed. Even if I use the IP address of the webserver to invoke the website locally on the webserver, the redirect does not work. Using http://localhost on the webserver the redirect works well.

I tried another test page with no UpdatePanel: The redirect works well in all scenarios.

I tried out to invoke the ClickOnce application using a link instead of Response.Redirect: The redirect works well in all scenarios, even with an UpdatePanel.

Does anyone have a clue what the problem might be?


Here is the ASPX:


<%@ Page Language="C#" AutoEventWireup="true" CodeFile="TestWithUpdatePanel.aspx.cs" Inherits="TestWithUpdatePanel" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//E

Error 504 - ReadResponse() failed: The server did not return a response for this request.


When I call this method from my wcf serivce :

        public override Restaurant[] GetAll()
            return (from c in GetContext().Restaurants orderby c.Name select c).ToArray();

I get following inner exception :

 {System.Net.WebException: The remote server returned an error: NotFound. ---> System.Net.WebException: The remote server returned an error: NotFound.
   at System.Net.Browser.BrowserHttpWebRequest.InternalEndGetResponse(IAsyncResult asyncResult)
   at System.Net.Browser.BrowserHttpWebRequest.<>c__DisplayClass5.<EndGetResponse>b__4(Object sendState)
   at System.Net.Browser.AsyncHelper.<>c__DisplayClass2.<BeginOnUI>b__0(Object sendState)
   --- End of inner exception stack trace ---
   at System.Net.Browser.AsyncHelper.BeginOnUI(SendOrPostCallback beginMethod, Object state)
   at System.Net.Browser.BrowserHttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
   at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelAsyncRequest.CompleteGetResponse(IAsyncResult result)}



Weird application behavior -- Action required to trigger service response otherwise the application



I am a WCF beginner and is trying out with a basic host service with callbacks to the client.

My code works wonders if my client app is a console.exe but when I transferred the code to a Windows Form app, the application will freeze.  But if I right click on the form window task bar, the code suddenly goes through and it would work...

Is there anything wrong with this?

The service is hosted on IIS

Here is my Service code:


[ServiceContract(CallbackContract = typeof





  ConcurrencyMode = ConcurrencyMode.Reentrant)]
 Chat : IChat


Reading Server Response in windows application


Hi Friends,

I've got a scenario to work with. In that I've to develop a windows application. On that application when the user enters some  data it should be passed to a web application(Third party) and I need to get the response from that web application  or web page. The responses will be just APPROVED or DECLINED. But I've no idea how to do with this. Expecting your valuable reply. I'm developing application in .NET 4.0. Plz reply me ASAP. Thanks in advance.. One of my friend told me (not sure for him) it may be possible with web services. If yes, How?? 

ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend