CODEWITHSUNDEEP
c#
Daniel Martinez
Daniel Martinez

Reputation: 397

How to get method results with AsyncCallback?

I hope you can help me with the following:

I have a WebService method which is supposed to return an array of CompensationPlanReturnReturn objects. The method is called like this:

//This is the object I need to instanciate  because it contains the method I wanna call
CompensationPlan_Out_SyncService test = new CompensationPlan_Out_SyncService();
//This is the method that is supposed to return me an array of CompensationPlanReturnReturn objects
//The data.ToArray() is the parameter the method need, then I pass the method that I wanna run when the method finishes and I dont know what to pass as the final parameter
test.BeginCompensationPlan_Out_Sync(data.ToArray(), new AsyncCallback(complete), null)

//The method description is:
public System.IAsyncResult BeginCompensationPlan_Out_Sync(CompensationPlanDataCompensationPlan[] CompensationPlanRequest, System.AsyncCallback callback, object asyncState)

//On this method I'd like to access to the resuls (the array of CompensationPlanReturnReturn) but I dont know how
private void complete(IAsyncResult result)
    {            
        lblStatus.Text = "Complete";
    }

Upvotes: 1

Views: 1105

Answers (3)

Rohit Vats
Rohit Vats

Reputation: 81233

Async methods breakdown into two submethods - Begin and End.

You need to call EndCompensationPlan_Out_Sync to get the actual result returned by method -

private void complete(IAsyncResult result)
{            
    var actualResult = test.EndCompensationPlan_Out_Sync(result);
    lblStatus.Text = "Complete";
}

Upvotes: 2

SLaks
SLaks

Reputation: 887215

You need to call test.EndCompensationPlan_Out_Sync(result), which will return the result of the asynchronous operation, or throw an exception if an error occurred.

Upvotes: 4

BendEg
BendEg

Reputation: 21088

Try to use the AsyncState-Property and cast it the the given Type.

Like this:

cSACommand = (SACommand)Result.AsyncState;

Upvotes: 0

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