Question

I’m trying to solve this problem for a long time.
I have 2 forms, my objectives are:

1. When user minimize form2, form1 must minimize too.
2. When user maximize form2, form1 must maximize too.
3. When both forms are obscured by another window, and user clicks in the form2 icon in taskbar, form1 must also come to front.

The first 2 things I solved with the a_Resize method. But I can’t do the third one. I tried with activate event but when I do that the form2 keeps blocked.
Here is my code:

    public partial class Form1 : Form
{
    Form2 form2;

    public Form1()
    {
        InitializeComponent();
        form2 = new Form2();
        form2.Show();
        form2.Resize += new EventHandler(a_Resize);
    }

    void a_Resize(object sender, EventArgs e)
    {
        if (((Form)sender).WindowState == FormWindowState.Minimized)
        {
            this.WindowState = FormWindowState.Minimized;
        }
        else
        {
            this.WindowState = FormWindowState.Normal;
        }
    }
}

If I add a handler to the form2 activate event:

form2.Activated += new EventHandler(form2_Activated);

And call for instance the Focus method (I tried other methods too), the form2 keeps blocked behind form1.

void form2_Activated(object sender, EventArgs e)
{
   this.Focus();
}

Someone have any ideas how I can do that?

Answer 1

When you create form2, just pass this as a parameter to Show() to signify that form1 is the owner. With an owner link, the forms will always be raised together (at least in my experience — I don’t have a specification to back me up on this).

public Form1()
{
    InitializeComponent();
    form2 = new Form2();
    form2.Show(this);     //pass 'this' as argument to Show() to link them
    form2.Resize += new EventHandler(a_Resize);
}