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Activating MDIChild form from another MDIChild form

Posted on 2006-06-22
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Last Modified: 2010-04-16
Hi Experts,

    I have and MDI UI and I need to be able to open an MDIChild form from another MDIChild form.  How do I accomplish that?

Thanks,
axnst2
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Question by:axnst2
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5 Comments
 

Author Comment

by:axnst2
ID: 16962418
I am doing this right now:

class MDIChild1 : Form
{
   private void cmdButton_Click(object sender, EventArgs e)
        {
            Form form = new Monitor(this.MdiParent);
            form.Show();
        }
}

public partial class MDIChild2 : Form
    {
        public Monitor(Form MDIParentForm)
        {
            InitializeComponent();
            this.MdiParent = MDIParentForm;
        }
    }
}

This works fine, but what I'd really like to do is to have a function in the MDIParent form that I could call to open a child form from any other child form!
0
 

Author Comment

by:axnst2
ID: 16962430
Sorry I it goes like this:

class MDIChild1 : Form
{
   private void cmdButton_Click(object sender, EventArgs e)
        {
            Form form = new MDIChild2(this.MdiParent);
            form.Show();
        }
}

public partial class MDIChild2 : Form
    {
        public MDIChild2 (Form MDIParentForm)
        {
            InitializeComponent();
            this.MdiParent = MDIParentForm;
        }
    }
}
0
 
LVL 86

Accepted Solution

by:
Mike Tomlinson earned 2000 total points
ID: 16962998
You could just do:

    private void cmdButton_Click(object sender, EventArgs e)
    {
        Form form = new MDIChild2();
        form.MdiParent = this.MdiParent;
        form.Show();
    }

Why do you want the MdiParent to open the form?
0
 

Author Comment

by:axnst2
ID: 16963316
So that it'll behave like the rest of my MDI forms.

Thanks, I tried what you suggested and it worked good.  Is this second MDIchild form disposed of when the user closes it, or do I have to free up the resources myself?
0
 
LVL 86

Expert Comment

by:Mike Tomlinson
ID: 16963669
It is disposed of automatically when the user closes it (or when the application exits).  You don't need to do anything special to it...
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