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Implementation of List variable in Output parameter of a Custom Workflow RRS feed

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    I have created a custom workflow where I am returning two Output Parameters of type 

    "public OutArgument<EntityReference> Variable { get; set; }"

    Whereas my 'Variable' value is set from a linq query output, that returns multiple values. But my Output Variable does not support multiple values being returned ( like of type List or Array). It just persists the last value returned by linq query.

    However it does not have any datatype supporting multiple value being return.

    If i try using <List>

    public OutArgument<List> Variable { get; set; }

    It gives me following error 

    Unhandled Exception: System.ServiceModel.FaultException`1[[Microsoft.Xrm.Sdk.OrganizationServiceFault, Microsoft.Xrm.Sdk, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]: The type OutArgument`1 of the property Variable is not supported. 
Detail: <OrganizationServiceFault xmlns="http://schemas.microsoft.com/xrm/2011/Contracts" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
  <ErrorCode>-2147200995</ErrorCode>
  <ErrorDetails xmlns:a="http://schemas.datacontract.org/2004/07/System.Collections.Generic" />
  <Message>The type OutArgument`1 of the property Variable is not supported. </Message>
    <InnerFault>
    <ErrorCode>-2147200995</ErrorCode>
    <ErrorDetails xmlns:a="http://schemas.datacontract.org/2004/07/System.Collections.Generic" />
    <Message>The type OutArgument`1 of the property Variable is not supported. </Message>
       <InnerFault i:nil="true" />
    <TraceText i:nil="true" />
  </InnerFault>
  <TraceText i:nil="true" />
</OrganizationServiceFault>
Server stack trace: 
   at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, ProxyRpc& rpc)
   at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
   at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at [0]: 
   at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
   at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
   at Microsoft.Xrm.Sdk.IOrganizationService.Update(Entity entity)
   at Microsoft.Xrm.Sdk.Client.OrganizationServiceProxy.UpdateCore(Entity entity)
   at Microsoft.Xrm.Sdk.Client.OrganizationServiceProxy.Update(Entity entity)
   at PluginRegistrationTool.RegistrationHelper.UpdateAssembly(CrmOrganization org, String pathToAssembly, CrmPluginAssembly assembly, PluginType[] type) in D:\sdk\tools\pluginregistration\RegistrationHelper.cs:line 263
   at PluginRegistrationTool.PluginRegistrationForm.btnRegister_Click(Object sender, EventArgs e) in D:\sdk\tools\pluginregistration\PluginRegistrationForm.cs:line 391

    Is there any way to retrieve the multiple values (or a List ) from Custom Workflow?


    Friday, June 14, 2013 6:40 AM

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