Threading issue in vb.net

[kalpanaB]

In my application, two forms, form1 and form2 are created in different thread.

I create another form, say form3, in same thread of form1.

When I start my application, from1 and form2 are invoked.

There is one button on form1 to start form3 (form3.show).


See following steps:


1. Click button on form1, form3 is displayed(TopMost property is True).

2. Immedietely switch to form2(diff.thread)

3. Click title bar of form3,

(Note: after clicking button on form1 to start form3 some processing like opening new forms in diff. thread is happening on form1.)

After step 3, when i click title bar of form3 finishes, form1 automatically comes to forground, eventhough, focus is not given to it.

Can somebody tell, what could be the possible reason for this ?

Is it the issue related to threading ?


How to overcome this problem ?

KalpanaB