How to run something in the STA thread?

Question

In my WPF application I do some async communication (with server). In the callback function I end up creating InkPresenter objects from the result from server. This requires

Answer 1

It's a bit of a hack, but I would use XTATestRunner So your code will look like:

    public void SearchForFooAsync(string searchString)
    {
        var caller = new Func(_patientProxy.SearchForFoo);
        caller.BeginInvoke(searchString, new AsyncCallback(SearchForFooCallbackMethod), null);
    }

    public void SearchForFooCallbackMethod(IAsyncResult ar)
    {
        var foo = GetFooFromAsyncResult(ar); 
        InkPresenter inkPresenter;
        new XTATestRunner().RunSTA(() => {
            inkPresenter = XamlReader.Parse(foo.Xaml) as InkPresenter;
        });
    }

as a bonus it's possible to catch exceptions thrown in STA (or MTA) thread like this:

try
{
    new XTATestRunner().RunSTA(() => {
        throw new InvalidOperationException();
    });
}
catch (InvalidOperationException ex)
{
}