Main from should redraw another

[Spockman]

Hi Guys!

I stuck in this problem quiet awhile. I have a MainForm in my application. It contains a second one as a member. If both a visible I have a problem to redraw the second one.
eg: MainForm and SecondForm is open and I move another window over the SecondForm. After that I click on the MainForm it will get the Focus and it will be redrawn. But the SecondForm stays behind.

I tried the following:
Using the OnActivation or OnEnter of my MainForm to redraw my Second doesn't work. (I got a appropriate result but my MainForm lost the focus and that should be the case)
I tried to paint the SecondForm in OnPaint of MainForm but that doesn't work either.

What is the right solution for this problem. Two Threads? an Mdi solution?

greetings Stefan

[maheshmrk22]

Hi,

As if you will be able to put some code then it will be easier to understand the fact. But as you mentioned above i think, MDI one will be better option and under that you would be able to set properties of child form.

Thanks
Mahesh

Hi Guys!

I stuck in this problem quiet awhile. I have a MainForm in my application. It contains a second one as a member. If both a visible I have a problem to redraw the second one.
eg: MainForm and SecondForm is open and I move another window over the SecondForm. After that I click on the MainForm it will get the Focus and it will be redrawn. But the SecondForm stays behind.

I tried the following:
Using the OnActivation or OnEnter of my MainForm to redraw my Second doesn't work. (I got a appropriate result but my MainForm lost the focus and that should be the case)
I tried to paint the SecondForm in OnPaint of MainForm but that doesn't work either.

What is the right solution for this problem. Two Threads? an Mdi solution?

greetings Stefan

[Spockman]

Hi Mahesh!

It's quite a simple problem. I want to create my own Media Player. And my MainForm is the Player itself and the Second form is my playlist.

If I use the Mdi version should be the player the parent and the playlist the child or should I create a container mdi form for both?

Posting the code needs a little bit of time because I have my stuff at home

greetings
Stefan

[Plater]

The forms (as well as all other controls) have an .Update() function that causes them to redraw themselves.
Have you tried that?

[Spockman]

Yes I tried that.

private void MainForm_Activated(object sender, System.EventArgs e)
{
playlist.Update();
}

but that won't work.

[Plater]

Well what do you mean by "won't work".
Are you sure you are calling it at the correct times?

Seems like you should be using the Enter event if you want it to fire everytime the form becomes selected?

[Spockman]

So I implement the Mdi way, but there are some new problems now.

Is it possible to to make the mdi form invisible and show only the child forms?

And the second problem is that my Player form has a menu and it will appear in mdi form but it should stay at the child form

It won't work was that if both forms are open and I move eg a editor window over the second form and I activate the main form the main form is fully visible but the second one is hidden behind the editor window

regards Stefan

[Plater]

Ahh ok, so it's a focus issue.
Yeah, the MDI way should work for you.

[Spockman]

I found the best and easiest solution for my problem!

I have to set the owner of second form and than all problems are fixed

But thanks for your help

greetings Stefan