关闭form2时关闭form1（从红色十字按钮开始）

Question

I have two forms .. the form1 is a login form. so if the username and the password typed correctly .. the user will be directed to the form2 and hide form1.. The form2 contain a button "logout" for closing form2 and returning to form1 ..

this is the code for the button logout

  private void logout_Click(object sender, EventArgs e)
    {
        this.Close();
        foreach (Form OpenedForm in Application.OpenForms)
        {
            if (OpenedForm is Form1)
            {
                OpenedForm.Show();
                break;
            }
        }
    }

everything is ok with that .. but the only problem appears when the user clicks the red cross to exit the application directly without logging-out .. in this case the form1 (login) still hidden .. Is there a solution to close form1 when closing form2 from the red cross ? thanks and sorry for my poor english

Answer 1

You can try to use FormClosing Event .

private void Form2_FormClosing(object sender, FormClosingEventArgs e)
{
    // close the first form...
}

This thread can help you to detect when the red cross was clicked...