We have a win form application that uses WSE 2.0 to connect to our web services. It was working perfectly before, suddently got a very strange error when calling the web method.
Type : System.InvalidOperationException, mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 Message : Can't call the end method of an async call more than once. Source : System.Web.Services Help link : TargetSite : System.Net.WebResponse EndSend(System.IAsyncResult, System.Object ByRef, System.IO.Stream ByRef) Stack Trace : at System.Web.Services.Protocols.WebClientProtocol.EndSend(IAsyncResult asyncResult, Object& internalAsyncState, Stream& responseStream) at System.Web.Services.Protocols.SoapHttpClientProtocol.EndInvoke(IAsyncResult asyncResult) at TrialWorksMM.TWRMMWS.DataTransportWse.EndGetDownloadFilters1(IAsyncResult asyncResult) at TrialWorksMM.frm_Download.FiltersCallback(IAsyncResult asyncResult)
I did some search on internet, not get anything about it. Anybody has idea what causes this error and how to fix it Thanks!!!
.NET Development30
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