Question

It’s a Windows Form Application

And kind of code:

public bool Simulation(string param1, bool param2)
        {
            //code1
            do
            {
                bool success = reader.Launch();
                //code2
            } while (!success);
        }

Launch() method takes a long time but I have to wait in this place (“code2“) at the same time having access to the GUI. Now Launch() is blocking this access.

How can I do this?

Answer 1

It’s a bit hard to understand exactly what you need, but it sounds like you want to run your entire Simulation method on a separate thread from your UI thread. If that is the case, you can just do something like this:

// From UI thread e.g. button click event handler
bool result; 

Task t = Task.Factory.StartNew(() => 
    {
        result = Simulation(p1, p2);
    });

Note that result would be populated from a second thread… it’s not clear from the question if you need to access result, or from which thread. If you can clarify that, I can give more concrete guidance on how/where to check result.