Comments by Samiul Aman (Top 3 by date)

Thanks brother. I've solved it through your answer. What happened was, instead of using public Property for private variables inside the UserControl class, I've been passing variable through it's constructor and as a result, I've been calling 'new UserControl(string s)' every time in the click-handler. Thanks again for the -- 'If there's only one user control then there's definitely no need to call new UserControl() in the click handler' part.

Also, base.Refresh() method is also helpful.

Thanks again.

I've added the UserControl on a TabPage of a TabControl. So the code becomes

this.myTabPage.Controls.Add(this.userControl);

Is it OK?

Another thing, I can't understand about the base.Refresh() part.
Where exactly should I use it?

Thanks again.