Question

My problem is simple. I have this new form, and I just code this:

    public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
        this.Resize += new EventHandler(Form1_Resize);

        this.WindowState = FormWindowState.Minimized;
    }

    private void Form1_Resize(object sender, EventArgs e)
    {
        if (WindowState == FormWindowState.Minimized)
        {
            ShowInTaskbar = false;
        }
        else if (WindowState == FormWindowState.Normal)
        {
            ShowInTaskbar = true;
        }
    }
}

I want this form to begin minimized, and I want to show the taskbar icon only when the form is not minimized. But when I run this i receive a StackOverflowException. I think that the ShowInTaskbar = false is calling the resize method.

Answer 1

Place your automatic minimization in the “Load” event, instead of the constructor.

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
        this.Resize += new EventHandler(Form1_Resize);
        this.Load += new EventHandler(Form1_Load);

    }

    void Form1_Load(object sender, EventArgs e)
    {
        WindowState = FormWindowState.Minimized;
    }

    private void Form1_Resize(object sender, EventArgs e)
    {
        if (WindowState == FormWindowState.Minimized)
        {
            ShowInTaskbar = false;
        }
        else if (WindowState == FormWindowState.Normal)
        {
            ShowInTaskbar = true;
        }
    }
}

I’m not entirely sure why this prevents a stack overflow, but as soon as I find out, I’ll update the answer. I’ve tested it after reproducing the issue and can confirm that it works!