How to pause execution in a Form?

Im not sure I understand the complexity of your problem here but what I think you are looking for is something like the following. If you have Form1 and Form2 for example you just need a function in Form2, Form1 will wait until Form2 returns and then will continue, consider the following:

In Form1:

Dim form1Var as Integer = 0 Dim form2Var As Integer = 0 Do Until form1Var = 100 form1Var += 1 Loop form2Var = Form2.DoSomething() MessageBox.Show("Value of form1Var is: " + form1Var.ToString) MessageBox.Show("Value of form2Var is: " + form2Var.ToString)

In Form2:

Public Function DoSomething() As Integer Dim i As Integer = 0 Do Until i = 200 i += 1 Loop Return i End Function

Hope this is what you were looking for.

-Joe

Thread.Sleep will not allow any execution at all. The code above is just a simple sample of how to transfer code execution from Form1 over to Form2 and halt the execution in the Form1 method until the Form2 method is done whatever needs to happen, after which Form1 may resume. This is not Asynchronous, its a blocking call. His question does not possess enough information on what information he needs. For example, is the method in form2 raising an event, does it require a callback, etc. If he just wants form2 to take over in the middle of a method in form1, the code above is a sample of that.

-Joe