How to find all the instances of a control in my windows applicati

[Guest]

So, I have a Windows Forms application in .NET 2.0. I also have a custom
UserControl. How do I find all the instances of my UserControl in an
Application?

I've just tried the new Application.OpenForms with a loop that searches all
the controls in the opened forms, but my program just crushes when it
attempts it (it just crushes along with VisualBasic.NET Express 2005 with no
error).

 

[Nassos]

Hello man,
don't know about the IDE crash, but i can show you a recursive method tha
look in the controls of the form, IMPORTANT, if you have i groupBox and
inside it you place your control, a loop in the Controls property of the
form WILL NOT give you your userControl so insdead use this functions:

private void findControl (){

Control returned = null;

//looping throught the controls of the form

foreach (Control cont in this.Controls){

returned = GetControl (cont);

//if the function returns a control then break the loop.

if (returned != null)

break;

}

}

private Control GetControl (Control c){

//setup the returned control

Control returnedControl = null;

//if the control have mor controls, loop and call the same Function
(recursive)

if (c.Controls.Count>0){

foreach (Control cont in c.Controls){

returnedControl = GetControl (cont);

if (returnedControl != null)

break;

}

}else{

//if the control is the one you looking for break the loop and return the
control

if (c.Name == "YourControlName")

returnedControl = c;

}

return returnedControl;

}



Hope that help

Nassos

 

[Guest]

Thx for the response.
I've tried what you said before.
But at last I used another way. I used a shared array: Each time a control
is created, it adds itself to the array and each time a control is disposed,
it removes itself.

Thx for the tip
Nice to see you're also greek!