The remote host closed the connection. The error code is 0x80070057

While creating a PDF or any file with asp.net pages I was getting following error.

Exception Type:System.Web.HttpException
The remote host closed the connection. The error code is 0x80072746.
at System.Web.Hosting.ISAPIWorkerRequestInProcForIIS6.FlushCore(Byte[] status,
Byte[] header, Int32 keepConnected, Int32 totalBodySize, Int32 numBodyFragments, IntPtr[] bodyFragments, Int32[] bodyFragmentLengths, Int32 doneWithSession, Int32 finalStatus, Boolean& async)
at System.Web.Hosting.ISAPIWorkerRequest.FlushCachedResponse(Boolean isFinal)
at System.Web.Hosting.ISAPIWorkerRequest.FlushResponse(Boolean finalFlush)
at System.Web.HttpResponse.Flush(Boolean finalFlush)
at System.Web.HttpResponse.Flush()
at System.Web.UI.HttpResponseWrapper.System.Web.UI.IHttpResponse.Flush()
at System.Web.UI.PageRequestManager.RenderFormCallback(HtmlTextWriter writer,
Control containerControl)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection
children)
at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)
at System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer)
at System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer,
ControlAdapter adapter)
at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter
adapter)
at System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer)
at
System.Web.UI.HtmlFormWrapper.System.Web.UI.IHtmlForm.RenderControl(HtmlTextWriter
writer)
at System.Web.UI.PageRequestManager.RenderPageCallback(HtmlTextWriter writer,
Control pageControl)
at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection
children)
at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer)
at System.Web.UI.Page.Render(HtmlTextWriter writer)
at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer,
ControlAdapter adapter)
at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter
adapter)
at System.Web.UI.Control.RenderControl(HtmlTextWriter writer)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint,
Boolean includeStagesAfterAsyncPoint)
Exception Type:System.Web.HttpException
The remote host closed the connection. The error code is 0x80072746.
at System.Web.Hosting.ISAPIWorkerRequestInProcForIIS6.FlushCore(Byte[] status,

After searching and analyzing I have found that client was disconnected and still I am flushing the response which I am doing for creating PDF files from the stream.

To fix this kind of error we can use Response.IsClientConnected property to check whether client is connected or not and then we can flush and end response from client.

Here is the sample code to fix that problem.

 if (Response.IsClientConnected)
           {
               Response.Flush();
               Response.End();
           }

That’s it Hope this will help you..Stay tuned for more.. Till that Happy Programming!!

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Request format is unrecognized for URL unexpectedly ending exception in web service.

Recently I was getting error when I am calling web service using Java script. I searching on net and debugging I have found following things.

Any web service support three kinds of protocol HttpGet,HttpPost and SOAP. In framework 1.0 it was enabled by default but after 1.0 framework it will not be enabled by default due to security issues and WS-Specifications. So we have to enabled them via putting configuration settings in web.config. Here is the code for that.

<configuration>
<system.web>
<webservices>
<protocols>
<add name="HttpGet"></add>
<add name="HttpPost"></add>
</protocols>
</webservices>
</system.web>
</configuration>

Hope this will help you. Stay tuned for more. Till that Happy programming!!!.

Technorati Tags: WebService,Request,Javascript,Ajax

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ASP.NET MVC 3 RC2 Razor- Syntax Intellisense in view.

Microsoft has recently launched Razor view engine with ASP.NET MVC RC2. It’s going to be promising one. There are lots of features bundled with this view engine. But in earlier version of ASP.NET 3 MVC. We were are not having Synatx intellisense provided for asp.net mvc views in Visual Studio 2010. So either we have to depend third party tools like Resharper or we have to manage it without intellisesnse. But with ASP.NET MVC 3 RC2 Microsoft has moved one step forward and its providing syntax intellisense without installing any third party addons in Visual Studio. Here is example of it.

Hope you liked it. Stay tuned for more.. Happy Programming..

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