ASP.NET 4.5 (ASP.NET/WCF) and Visual Studio 2012 Release Candidate (RETIRED)

Problems adding controller

2012-04-19T05:44:59.983-04:00

In a MVC3 project under VS 11, I am using Code First with POCO's and am trying to add a controller. I keep getting the error message "Unable to retrieve metadata for 'MVC3_TestApp.Models.CAS'. The type initializer for 'System.Data.Entity.Internal.AppConfig' threw an exception." Any ideas what is causing this?

ObjectContent in ASP.NET 4.5 RC

2012-08-09T20:01:54.803-04:00

Hi,
I'm trying to build a client to call a web service by sending a serialized object as the content in the request. I was going to use ObjectContent but I don't think that is available in the RC. I read this on http://www.asp.net/whitepapers/mvc4-release-notes.

"To send a request that contains an ObjectContent use the PostAsync<T> extension methods on HttpClient. Or, use the PostAsJsonAsync<T> and PostAsXmlAsync<T> extension methods to specify a request that will be specifically formatted with as JSON or XML respectively"

Is this correct that you can call the PostAsync method on HttpClient using an argument type? I'm running 4.5 RC on VS 2012 RC and that's now working. Could anyone provide an example that demonstrates what the white papers recommends or an alternative was in the 4.5 RC to send a class object as the content in an http post?
Thank you!

Inheritance in DataContract between Different Services?

2012-08-13T02:52:04.947-04:00

Hi All,

Am trying to make two service to talk with each other. There is a service called social content management (SCM) service which talks with CRM service.

what i did was:

1) tried to extend one of the CRM's data contract into SCM service.

Let us assume there is a Data Contract called DC_A in CRM, I created a Service Reference of CRM service in SCM service. Then in SCM service I have a Data Contract class, let it be called as (DC_B). What I did was I tried to reuse the properties of DC_A in DC_B, as done in inheritance in OOP. Hence I decided to Inherit the properties of DC_A in DC_B, by declaring the datacontact of DC_B as shown below

[DataContract]

Class DC_B : DC_A (FYI DC_A is a DataContract from CRM Service)

{

// implementation of properties for DC_B goes here.

}

1) Can this be done as shown in the above code? trying to extend or reuse datacontract from another service?

2) The below error message is, it says it cannot convert DC_B object to DC_A (while I am trying to reuse the implementation of CRM service in SCM Service)? How can I solve this issue if (1) is possible?

(I have simplified the whole story of this error into ordinary terms)

There was an error while trying to serialize parameter http://tempuri.org/:sampleContact. The InnerException message was 'Type 'SocialContentManagement_Services.Contracts.DataContracts.User' with data contract name 'User:http://schemas.datacontract.org/2004/07/SocialContentManagement_Services.Contracts.DataContracts' is not expected. Consider using a DataContractResolver or add any types not known statically to the list of known types - for example, by using the KnownTypeAttribute attribute or by adding them to the list of known types passed to DataContractSerializer.'. Please see InnerException for more details.

Any ideas are welcomed. Thanks in Advance.

Cheers,

Chandra.

$.getJSON is not working in Firefox, but in IE works fine

2012-08-08T07:13:01.423-04:00

This is works fine in all browser

$.getJSON("http://api.flickr.com/services/feeds/photos_public.gne?tags=cat&tagmode=any&format=json&jsoncallback=?", function(data){
$.each(data.items, function(i,item){
    $("<img/>").attr("src", item.media.m).appendTo("#images")
      .wrap("<a href='" + item.link + "'></a>");
    if ( i == 3 ) return false;
});

but

$(document).ready(function () {
    jQuery.support.cors = true;
    $.getJSON("http://localhost/Examples/Users/GetLiveMatches?userId=37&format=json&callback=?", function (data) {
        for (var i = 0; i < data.length; i++) {
            renderLiveMatch(data[i]);
        }
    }).success(function () { alert("success"); })
          .error(function (jqXHR, textStatus, errorThrown) { // Debug the error!!
              console.log("error " + textStatus);
              console.log("error throw " + errorThrown);
              console.log("incoming Text " + jqXHR.responseText);
          }) // End of .error
          .complete(function () { alert("complete"); });

});

Here it is not working in Firefox,Chrome and Other Brwoser..,in IE it is working fine.

I have try all callback function at aend of url and "dataType: "script"" change to dataType: "jsonp".But not working...

CORS issues with IIS 7.5 and DelegatingHandlers (Web API service)

2012-08-10T02:25:30.497-04:00

I'm trying to make a cross-domain XHR call from my MVC app to my Web API service using VS2012 RC. I've set up a CORS DelegatingHandler as per Carlos's blog entry that will append the necessary ACAO header to the response headers. I've noticed that Chrome and Firefox are unable to send preflighted XHR requests to my Web API service. Tracing the network calls showed that Chrome and FF both send the OPTIONS request to IIS 7.5 (or 7.5 express, makes no difference) and the response that comes back from IIS does not contain the ACAO headers. Breakpoints in the CorsHandler show that it never gets called for the OPTIONS request.

Since FF and Chrome don't receive the ACAO headers, they believe this is insecure cross-domain scripting and refuse to send the request. IE9 does not make the preflighted OPTIONS call and skips straight to the GET, which does get handled by CorsHandler and gets the proper ACAO headers. So IE9 never sees the problem. If I switch over from IIS7.5 to Cassini, everything works great with FF and Chrome as Cassini returns the ACAO headers in the OPTIONS response.

Am I missing something obvious or is this just an oversight in IIS7.5? It seems like there's no way to support preflighted XHR requests with IIS7.5 and instead we have to make sure no cross-domain XHRs ever get escalated to preflighting by the browsers.

visual studio 2012 RC : Unable to launch the IIS express Web server

2012-08-07T15:38:59.037-04:00

Hello

I have visual studio 2010 and 2012 installed, when l try to tanch MVC app in visual studio 2012 I get the error message :

"Unable to launch the IIS express Web server"

the application works fine on VS 2010

please help

Will the RTM of Visual Studio 2012 include an RTM of MVC4

2012-08-04T04:49:45.673-04:00

I recently heard that the RTM of Visual Studio 2012 is slated for Aug 15. Does anyone know if that will include MVC 4 RTM as well or will MVC 4 RTM be coming out shortly there after?

I'm seeing some fixes in the Web API stuff since RC on CodePlex that I want but I'm not sure I want to go down the path of using my own build or one of the nightly builds that I saw are available via NuGet.

I can wait a couple weeks but if MVC 4 is going to be even later then maybe I'll just go with a nightly build for now to get what I want.

W3WP.exe remains high even system remain idle

2012-08-06T01:50:57.153-04:00

Hello All,

I am facing one problem continuosly, when I use any services then memory reaches to 700 MB but when system remain idle then it does not decrease, due to that overall system perform very slow.

Please let me know if any setting I have to write in config file.

Upload Image to WCF Rest Service

2012-07-19T14:20:34.76-04:00

Hi to all

  I have created the WCF Rest service to upload images.Now it is working,
  but when i open the uploaded image after converting from stream to image it is
  showing error can anyone guide what mistake i am doing.

Operation Contract :
 
 [OperationContract]
      [WebInvoke(BodyStyle = WebMessageBodyStyle.Bare, UriTemplate = "/PostImage", Method = "POST")]
      PublicMessage PostImage(Stream obj);

Service Definition :
 

public PublicMessage PostImage(Upload obj)
    {
        byte[] buffer = StreamToByte(obj.File);   //Function to convert the stream to byte array
     FileStream fs = new FileStream(@"D:\ShopMonkeyApp\Desert.jpg", FileMode.Create, FileAccess.ReadWrite);
        BinaryWriter bw = new BinaryWriter(fs);

        bw.Write(buffer);

        bw.Close();

        return new PublicMessage { Message = "Recieved the image on server" };
    }


public static byte[] StreamToByte(Stream stream)
      {
        byte[] buffer = new byte[16 * 1024];
        using (MemoryStream ms = new MemoryStream())
        {
          int read;
          while ((read = stream.Read(buffer, 0, buffer.Length)) > 0)
          {
            ms.Write(buffer, 0, read);
          }

          return ms.ToArray();

        }

      }



Client Application :

        string obj = @"D:\Images\Desert.jpg";
        var c = new System.Net.WebClient();
        c.OpenWrite(string.Concat("http://localhost:50268/shopmonkey.svc", "/PostImage"), "POST");
        c.Headers[HttpRequestHeader.ContentType] = "application/octet-stream";
        c.UploadFile("http://localhost:50268/shopmonkey.svc/PostImage"), obj);



Thanks & Regards,
Vijay

Request Timeout in Async Call to WCF

2012-07-27T07:36:34.597-04:00

I am calling SQL Stored Procedure which modify the hufe data. There is no problem with synchronous Call.

But when I call Async I m getting Timeout Error. Below are the code and configuration I follwed

Error Description while calling WCF Asynchronously

This request operation sent to net.tcp://localhost:8731/GEPQPService/ did not receive a reply within the configured timeout (00:01:00). The time allotted to this operation may have been a portion of a longer timeout. This may be because the service is still processing the operation or because the service was unable to send a reply message. Please consider increasing the operation timeout (by casting the channel/proxy to IContextChannel and setting the OperationTimeout property) and ensure that the service is able to connect to the client.

This is my WCF Configuration

<system.serviceModel>
    <bindings>
      <basicHttpBinding>
        <binding name="BasicHttpBinding_IUpdateStatus" closeTimeout="01:00:00" openTimeout="01:00:00" receiveTimeout="01:00:00" sendTimeout="01:00:00" allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536" messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="true">
          <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" />

          <security mode="None">
            <transport clientCredentialType="None" proxyCredentialType="None" realm="" />
            <message clientCredentialType="UserName" algorithmSuite="Default" />
          </security>
        </binding>
      </basicHttpBinding>
      <netTcpBinding>
        <binding name="netTcpBinding_IQAPackageService" closeTimeout="01:01:00"
         openTimeout="01:01:00" receiveTimeout="01:10:00" sendTimeout="01:01:00"
                 hostNameComparisonMode="StrongWildcard" maxBufferSize="8000000" maxBufferPoolSize="8000000"
                 maxReceivedMessageSize="8000000">
          <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" />
          <reliableSession ordered="true" inactivityTimeout="01:00:00" />
          <security mode="Transport">
            <transport clientCredentialType="Windows" protectionLevel="EncryptAndSign" />
            <message clientCredentialType="Windows" />
          </security>
        </binding>
      </netTcpBinding>
    </bindings>
    <client>
      <endpoint address="http://localhost/GepQualityPackage/UpdateStatus.svc" binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IUpdateStatus" contract="GepUpdateProcessStatus.IUpdateStatus" name="BasicHttpBinding_IUpdateStatus" />
    </client>
    <services>
      <service behaviorConfiguration="GEPWcfServices.Service1Behavior" name="GEPWcfServices.QAPackageService">
        <endpoint address="" binding="netTcpBinding" bindingConfiguration="netTcpBinding_IQAPackageService" contract="GEPWcfServices.IQAPackageService" >
          <identity>
            <dns value="localhost" />
          </identity>
        </endpoint>
        <endpoint address="mex" binding="mexTcpBinding" bindingConfiguration="" contract="IMetadataExchange" />
        <host>
          <baseAddresses>
            
            <add baseAddress="net.tcp://localhost:8731/GEPQPService/" />
          </baseAddresses>
        </host>
      </service>
    </services>
    <behaviors>

      <endpointBehaviors>
        <behavior name="MyCallbackBehavior">
          <callbackTimeouts transactionTimeout="01:00:00" />

        </behavior>
      </endpointBehaviors>

      <serviceBehaviors>
        <behavior name="GEPWcfServices.Service1Behavior">
          <serviceTimeouts transactionTimeout="10:10:00" />
          <serviceMetadata httpGetEnabled="false" />
          <serviceDebug includeExceptionDetailInFaults="true" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
</system.serviceModel>

Web Config file Configuration

<system.serviceModel>
    <bindings>
      <netTcpBinding>
        <binding name="NetTcpBinding_IQAPackageService" closeTimeout="01:01:00"
         openTimeout="01:01:00" receiveTimeout="01:10:00" sendTimeout="01:01:00"
         transactionFlow="false" transferMode="Buffered" transactionProtocol="OleTransactions"
         hostNameComparisonMode="StrongWildcard" listenBacklog="10" maxBufferPoolSize="524288"
         maxBufferSize="8000000" maxConnections="10" maxReceivedMessageSize="8000000">
          <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
           maxBytesPerRead="4096" maxNameTableCharCount="16384" />
          <reliableSession ordered="true" inactivityTimeout="01:00:00"
           enabled="false" />
          <security mode="Transport">
            <transport clientCredentialType="Windows" protectionLevel="EncryptAndSign" />
            <message clientCredentialType="Windows" />
          </security>
        </binding>
      </netTcpBinding>
    </bindings>
    <client>
      <endpoint address="net.tcp://localhost:8731/GEPQPService/" binding="netTcpBinding"
       bindingConfiguration="NetTcpBinding_IQAPackageService" contract="QAPackageServiceClient.IQAPackageService" behaviorConfiguration="MyCallbackBehavior"
       name="NetTcpBinding_IQAPackageService">
        <identity>
          <dns value="localhost" />
        </identity>
      </endpoint>
    </client>
    <behaviors>
      <serviceBehaviors>
        <behavior name="GepQualityPackage.UpdateStatusBehavior">
          <serviceMetadata httpGetEnabled="true"/>
          <serviceDebug includeExceptionDetailInFaults="false"/>
        </behavior>
      </serviceBehaviors>
      <endpointBehaviors>
        <behavior name="MyCallbackBehavior">
          <callbackTimeouts transactionTimeout="01:00:00" />
        </behavior>
      </endpointBehaviors>
    </behaviors>
    <services>
      <service behaviorConfiguration="GepQualityPackage.UpdateStatusBehavior" name="GepQualityPackage.UpdateStatus">
        <endpoint address="" binding="basicHttpBinding" contract="GepQualityPackage.IUpdateStatus">
          <identity>
            <dns value="http://localhost/GepQualityPackage/UpdateStatus.svc"/>
          </identity>
        </endpoint>
        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
      </service>
    </services>
</system.serviceModel>

And C# code

public void AsyncWcf()
        {
            var basicHttpBinding = new NetTcpBinding();

            var objQPWCFService = new QAPackageServiceClient.QAPackageServiceClient();
            EndpointAddress endpointAddress = objQPWCFService.Endpoint.Address;

            IQAPackageService objIQPWCFService =
                new ChannelFactory<IQAPackageService>
                (basicHttpBinding, endpointAddress).CreateChannel();
                                                                       //h, m, s
            objQPWCFService.InnerChannel.OperationTimeout = new TimeSpan(0, 5, 0);

            AsyncCallback aSyncCallBack =
                delegate(IAsyncResult result)
                {
                    try
                    {

                        string requestResult = objIQPWCFService.EndrunProcess(result);
                    }
                    catch (Exception ex)
                    {
                        throw new ApplicationException(ex.Message);
                    }
                };

            try
            {

                objIQPWCFService.BeginrunProcess(this.MasterData._connectionString, objProcessList.ToArray(), logInfo.serverName, logInfo.databaseName, logInfo.mainTableName,
                    aSyncCallBack, objIQPWCFService);//objIQPWCFService);
            }
            catch (Exception ex)
            {
                throw new ApplicationException(ex.Message);
            }
        }

IIS websocket module is not enabled

2012-07-26T15:24:16.077-04:00

I am trying to set up a web application that utilizes WebSockets. I am running VS12_RC on Windows 7 and whenever I try to run my websocket I get a "The IIS WebSocket module is not enabled." error. Where can I turn this on at? I see IIS 8 Express in my Add or Remove Programs, but can't seem to find it in my system. I assume it was installed with VS12_RC? Any help would be greatly appreciated.

Scripts suddenly not working

2012-07-31T14:12:44.27-04:00

Installed the July 2012 Update for VS 2012 Express for Web and everything seemed to be fine. Ran my project a few times no problems. Now when I run it doesn't seem to load scripts such as jQuery and I get errors like $ is undefined or ko is undefined. I haven't made any changes to the scripts or anything.

The only two things that have happened today was a dialog box asking me to normalize endings and installing the trial of the Electric Plum iOS Simulator.

Please help, all the restarts haven't helped me at all!

Call webservic async

2012-07-30T14:24:34.127-04:00

Hi there,

In my mvc 4 project a wan't to validate vatnumbers through this wsdl reference.
Is it possible to do this with the new async method?
I want to check 100 to 1000 numbers in one call in my application, but this would be 100 to 1000 calls to the vat vies webservice.

Thanks

Unable to accept WebSocket connections from iOS mobile devices

2012-07-27T17:00:59.313-04:00

We've implemented WebSocket services in our asp.net project with Dot Net 4.5. Along the usual lines:

if (System.Web.HttpContext.Current.IsWebSocketRequest)
            {
                log.Debug("Accepting web socket connection");
                System.Web.HttpContext.Current.AcceptWebSocketRequest(HandleClient);
            }
            else
            {
                log.Debug("Rejecting non web socket connection");
                System.Web.HttpContext.Current.Response.StatusCode = 500;
            }

We can successfully connect to this and have traffic in both directions with Chrome and IE on the desktop, with Chrome on Android devices, etc. with no problems. But when trying to hit it from any iOS device (iPod Touch, iPad, etc.), System.Web.HttpContext.Current.IsWebSocketRequest is always false.

Therefore, it is currently not possible to service iOS clients with this component.

Is this a known bug?

Is Visual Studio 2012 4.5 RC for Web final edition?

2012-07-25T16:19:58.13-04:00

I want to know whether the Visual Studio 2012 4.5 Release Candidate the final edition or it is still in the Beta Stage.

basic tutorial of endpoint binding in wcf

2012-07-22T06:05:36.68-04:00

hello everyone

i am going to develop on application using wcf in .net 4.0 and i need to know all types of endpoint binding like BasicHttpBinding,WSHttpBinding,WSDualHttpBinding,WSFederationHttpBinding,NetTcpBinding etc... actually i need to know the difference of thease all binding types thats why i can implement according to my project requirement ..so please can anyone provide me any tutorial or text for this...hope response will be very soon

thanks in advance

arun

Integrate PayPal gateway in wcf rest service using C#

2012-07-20T05:44:05.19-04:00

I want to integrate paypal gateway in my wcf rest service for android application. I don't want to navigate to paypal site during payment through my application.

Please Suggest me how to achieve it.

Thanks,

Flight booking API integrations

2012-07-16T15:53:42.717-04:00

I am doing travelling site, in this i have to integrate flight booking,cars booking,hotel booking and vacation booking API in my website.

How can i integrate the above API's in my website, please any one help with test api,this is very need ful to me.

how to Upload Image to WCF Rest Service in application?

2012-07-20T10:47:31.54-04:00

Hi to all,
      im new to wcf service and i have studied about wcf service little things.
  I need to  create an application with  WCF Rest service to upload images.so please friends give sample
site or sample code with explanation to learn this.

pls provide ur valuable coding or tell some site name for having this example ...please guide me friends

Unit tests not running/discovered when project on network share

2012-07-04T20:26:53.443-04:00

Not sure if this is 2012 specific but I have a project hosted on a network share (for backup reasons). When I click run all I can see the project being built but nothing happens, it doesn't find any tests nor do they run. If I built the solution manually the same thing happens. If I copy the project to my C drive it works fine.

I've been playing around with trying to make the network location a trusted using caspol but it says:

"WARNING: The .NET Framework does not apply CAS policy by default. Any settings
shown or modified by CasPol will only affect applications that opt into using
CAS policy."

Any ideas?