How to wait until an event is finished without blocking execution in the UI

Question

I’m trying to figure out how can I make sure that the event has fired before letting the rest of the code run.

I hook up an event like this:

public stati         


        

Answer 1

The async/await is designed to solve your particular set of problems.

You'll need to turn the WCF calls into Tasks. Then it is a matter of

public static async void QueryUrlParameters()
{
    await dynMapServLayer.EnsureIsInitialized();

    Query query = GetParameterQuery();
    QueryTask queryTask = new QueryTask(GetRestURL(dynMapServLayer));

    var result = await queryTask.ExecuteAsync(query);   

    // etc ....
}

Update:

On VS2010, you can either using Async CTP or use this syntax http://msdn.microsoft.com/en-us/vstudio/hh533273.aspx 

   initializationTask.ContinueWith(()=> ...)

It is best to try this with a test project first.