Return a value on closing from a form without showdialog

Question

I have a mdi application from which I want to call a mdi child form. This form has to return a value on closing to its parent. How can I manage that without using ShowDialog()?

Answer 1

You can handle the OnClosing event of the child form and set a value of a variable of the parent form class before closing.

private void Form2_FormClosing(object sender, FormClosingEventArgs e)
{
    Form1.myVar = 3;
}