Problem form being frozen when my app execute a specific method

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3.00/5 (1 vote)

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Hi i am a beginner programmer in c# and little c++.
i came across a problem that is the form being frozen when my app execute a specific method (not resizable ,not movable,and not execute other methods of events).
so how can i avoid this problem.
thanks for advance.
sorry for my weak English.

Posted 20-Apr-11 4:40am

mohammadrefaie

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2 solutions

Solution 1

May be the excution of that method is time consuming thaty the form got frozen. Try to call that function async.

see the below link

Asynchronous Method Invocation[^]

Posted 20-Apr-11 4:43am

nit_singh

Updated 20-Apr-11 5:11am

v3

Comments

Olivier Levrey 20-Apr-11 10:47am

Your answer is correct but providing an example would be more helpful since OP is a beginner.
Voted 4.

nit_singh 20-Apr-11 11:12am

Thanks...

mohammadrefaie 20-Apr-11 10:56am

can you provide an example

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Olivier Levrey · Accepted Answer · 2011-04-20T04:46:00

Solution 2

nit_singh is right. If you want to perform a lengthy operation and keep your UI responsive, consider using a thread (and more specifically a BackgroundWorker). If you are using C#, this might help:
ProgressForm: A simple form linked to a BackgroundWorker[^]

Posted 20-Apr-11 4:46am

Olivier Levrey

Comments

Nish Nishant 20-Apr-11 10:53am

Voted 5, proposed as answer.

Olivier Levrey 20-Apr-11 11:04am

Thank you Nishant.

Nish Nishant 20-Apr-11 11:05am

No problem, you're welcome!

mohammadrefaie 20-Apr-11 11:06am

i don't understand how it works and how can i make my form responsive

Olivier Levrey 20-Apr-11 11:09am

You should learn about BackgroundWorker. Try this link: http://www.codeproject.com/KB/cpp/BackgroundWorker_Threads.aspx

mohammadrefaie 20-Apr-11 11:19am

thank you i will learn about this.

Sergey Alexandrovich Kryukov 20-Apr-11 19:47pm

Agree, a 5. (But not async, in practice, just thread.)
--SA