Hello ketaki,

asp.net or winforms?!

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WBR,
Michael  Nemtsev [.NET/C# MVP] :: blog: http://spaces.live.com/laflour 

"The greatest danger for most of us is not that our aim is too high and we
miss it, but that it is too low and we reach it" (c) Michelangelo

k> Hello,
k> I am new to C# and I am facing a problem. I have two user
k> controls.First control has an image which is loaded. And the second
k> control is supposed to be placed on the first control. But when the
k> first control is invalidated the second control gets hidden behind
k> the
k> first control and it becomes invisible. Once I invalidate the second
k> control it appears on top of the first control for fraction of second
k> and again gets hidden. I want the second control to be seen
k> permanently on the first control even wheen the first control is
k> invalidated. I tried "Send to back" and "Bring to front" options but
k> they do not seem to be solving my problem.
k> Please help.
k> Thanks

You should post a concise-but-complete sample of code that reliably  
demonstrates the problem.  There's just not enough specific information in  
your question for anyone to understand for sure just how you are putting  
your form and its controls together.

That said, some things that may be useful to you: controls are ordered  
visually according to their order in the Controls property of the parent  
control, with the first control (0 index) being on top.  Also, controls  
that act as containers can wind up with other controls added to same form  
as their children, depending on where those other controls were placed.  A  
child control will obscure a parent control no matter what you do with the  
z-order.

Usually this sort of thing would show up right away.  After all, the first  
thing that happens before you ever see a form is that it's invalidated and  
requires painting.  If the only thing causing your issue was in fact  
invalidation (i.e. calling Invalidate()), it seems odd that it would  
happen only after the form was first shown, as your message implies.

But then, your question was presented in a pretty vague way.  So who knows  
what's really going on except you.  That's why a concise-but-complete  
sample would be useful.

Pete