MDI Form App

visualise01

I have created a windows app form project.

I have 3 forms, the first one I have set to be MDI Parent, the other two are Child.

When I click a button to open the two child forms, how can I stop them from opening more than once.

As it is just now, the form opens however many time I click the button, but I only want them to open once.

insertAlias

What I do is make the child forms members of the parent form. Private global variables if you will:

Expand|Select|Wrap|Line Numbers

 public class Form1 : Form

{

private Form2 f2;
 
public Form1()

{

InitializeComponent();

f2 = new Form2()

}

}

And when I want to show it, I check to see if f2 has been disposed. If it has, I make a new instance and show it, otherwise, I just focus on it.

Note: I just typed this code in by hand. I didn't copy+paste from an existing project. This is just an example.

MDI Form App

re: MDI Form App

Similar .NET Framework bytes

/bytes/development

/bytes/it

/bytes/about