C# MDI Parent detect when MDI Child is closing?

Question

I\'m attempting to detect, on the MDI parent, when my MDI child form closes, and react accordingly. The MDI parent shouldn\'t do anything until the MDI child closes. Here is

Answer 1

Don't use the Closed Event. Instead, use the FormClosing event:

private void frmMain_FormClosing(object sender, FormClosingEventArgs e){
  if (MessageBox.Show("Are you sure you want to Exit", "Confirmation", MessageBoxButtons.YesNo,MessageBoxIcon.Information) == System.Windows.Forms.DialogResult.No) {
    e.Cancel = true;
  }
}