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Silverlight: Exception in AsyncCallback RRS feed

  • Question

  • The code blow works, it creates a task, but the AsyncCallback in BeginExcecute throws an exception that I can't catch?

    (the method appendDescription adds given information to a textfield in CRM)

    private void createTask(string summary) 
            {
                OrganizationRequest request = new OrganizationRequest() { RequestName = "Create" };
                Entity entity = new Entity();
                entity.LogicalName = "task";
                entity.Attributes = new AttributeCollection();
    
                entity.Attributes.Add(new SoapForSilverlightSample.CrmSdk.KeyValuePair<string, object>()
                    {
                        Key = "subject",
                        Value = txtSummery.Text.Trim()
                    });
    
                entity.Attributes.Add(new SoapForSilverlightSample.CrmSdk.KeyValuePair<string, object>()
                {
                    Key = "regardingobjectid",
                    Value = new EntityReference() { LogicalName = "incident", Id = getIncidentID() }
                });
    
                //request properties need to be explicitly named as strings 
                request["Target"] = entity;
    
                appendDescription("Start", "[createTask]");
    
                try
                {
                    IOrganizationService service = SoapForSilverlightSample.SilverlightUtility.GetSoapService();
                    //depending on how you do things your calls will most likely be asynchronous 
                    service.BeginExecute(request, new AsyncCallback(CrmCreate_Callback), service);
    
                    appendDescription("Saved!", "[createTask]");
                }
                catch(Exception ex)
                {
                    appendDescription(ex.Message, "[Excption => createTask]");
                }
            }
    
            private void CrmCreate_Callback(IAsyncResult result)
            {
                
                OrganizationResponse response = ((IOrganizationService)result.AsyncState).EndExecute(result);
                Guid results = (Guid)response["id"];
                Guid CreatedEntity = results;
    
                appendDescription("utan EndExecute", "[CrmCreate_Callback]");
            }

    The exception

    Unhandled Error in Silverlight Application An AsyncCallback threw an exception.   at System.ServiceModel.AsyncResult.Complete(Boolean completedSynchronously)
       at System.ServiceModel.Channels.HttpOutput.WebRequestHttpOutput.GetOutputStreamAsyncResult.OnGetRequestStream(IAsyncResult result)
       at System.Net.Browser.BrowserHttpWebRequest.<>c__DisplayClass14.<InvokeGetRequestStreamCallback>b__12(Object state2)
       at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
       at System.Threading.ThreadPoolWorkQueue.Dispatch()
       at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()


    • Edited by HalSoul Wednesday, December 18, 2013 3:31 PM
    Wednesday, December 18, 2013 3:29 PM