Control.Invoke hangs Main Form (Multithreading)

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Hello,

I want to call a function present on the Main form from another class which includes threads so i am using Control.Invoke Method But this hangs my main Form in the middle. Can Anyone provide me an alternative.

This is the way i call that function.
ThreadTermination is the delegate declared on the main form.

frm.Invoke(frm.ThreadTermination, this);

Thanks

Posted 17-May-12 23:37pm

Member 4354249

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Pete O'Hanlon · Answer 1 · 2012-05-18T00:15:00

Solution 1

Well, for a start I wouldn't be directly invoking a method on that form. When I've wanted to notify the parent form that something needs to be done, or that something has happened, I normally have an event in my child form which the parent form subscribes to. Then all you need to do is raise the event to have it handled by the parent form.

Posted 18-May-12 0:15am

Pete O'Hanlon

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Member 4354249 18-May-12 6:28am

can you provide me some code related to that if possible:)

Filip D'haene · Answer 2 · 2012-05-18T00:18:00

Solution 2

Did you try

frm.BeginInvoke(frm.ThreadTermination, this);

Posted 18-May-12 0:18am

Filip D'haene

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Member 4354249 18-May-12 6:27am

yeah.. but the problem is i want to block the caller so that it shouldnt take other request till i complete the execution of called fuction.

Filip D'haene · Answer 3 · 2012-05-18T02:51:00

Solution 3

Maybe you should try:

Dispatcher.CurrentDispatcher.Invoke(frm.ThreadTermination, this);

Posted 18-May-12 2:51am

Filip D'haene

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Member 4354249 21-May-12 2:52am

using Dispatcher class the function is execute by the worker thread itself not the main thread.

[no name] 21-May-12 12:47pm

I also think that solution 1 is the best way to go. (Using events)