WCF

Question

Hi,

I am receiving the following error when I pass list data to the WCF service. When  data is small it works , but when data is large it does not work.

Below is the exceptions.

[WebException: The remote server returned an error: (400) Bad Request.] System.Net.HttpWebRequest.GetResponse() +6115603 System.ServiceModel.Channels.HttpChannelRequest.WaitForReply(TimeSpan timeout) +48 [ProtocolException: The remote server returned an unexpected response: (400) Bad Request.] System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg) +9439503 System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type) +345 BusinessFacade.SparkService.IService1.insertUpdatePatientResultEntry(PatientLabResultEntry objPatientLabResultEntry) +0 BusinessFacade.LIS.Master.PatientLabResultEntryBAL.insertUpdatePatientResultEntry(PatientLabResultEntry objPatientLabResultEntry) in D:\Projects Development\Spark\Hospice\Phase-IILIS\Phase-II\02-SourceCode\Spark\BusinessFacade\LIS\Master\PatientLabResultEntryBAL.cs:40 Pages_LIS_SearchPatientsForLabResultEntry.insertUpdatePatientResultEntryDetails() in d:\Projects Development\Spark\Hospice\Phase-IILIS\Phase-II\02-SourceCode\Spark\WebSite\Pages\LIS\SearchPatientsForLabResultEntry.aspx.cs:1006 Pages_LIS_SearchPatientsForLabResultEntry.btnSave_Click(Object sender, EventArgs e) in d:\Projects Development\Spark\Hospice\Phase-IILIS\Phase-II\02-SourceCode\Spark\WebSite\Pages\LIS\SearchPatientsForLabResultEntry.aspx.cs:475 System.Web.UI.WebControls.Button.OnClick(EventArgs e) +118 System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +112 System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10 System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13 System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +36 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5563

Regards

Irfan

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Irfan

Answer 1

Maybe try increasing the timeouts on the binding configuration properties? This sounds like a standard WCF issue.

Thanks,

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If this answers your question, please use the "Answer" button to say so | Ben Cline

Answer 2

Hi Ben, 

Can u elaborate where we need to make the above changes?

We are using WCF as a layer between our logic access layer and data access layer.

Regards,

-Irfan

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Irfan

Answer 3

I would just look in the config file for the service and edit some of the timeout values like the OpenTimeout or SendTimeout. If you open the config in the service configuration tool this shows you the different possible options on the binding.

Thanks,

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If this answers your question, please use the "Answer" button to say so | Ben Cline

Answer 4

Could you enable tracing in your WCF service? it will help you to find out exactly what is going wrong.

Also have a look at this post that i have written on my blog handling large data in wcf service.

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Tanvir Huda Application Architect/Consultant http://thetechnocrate.wordpress.com/