To close the form

[robin99]

Whenever I click on form's red cross close button I want to close form, but I need to click it twice to close the form.I need to click it only one to close it.
I don.t know what the cause,please help

thank you
robin

[Michael27]

use the Close() method

[M.Waqas Aslam]

Michael , where to use Close() ? can please explain it ?

[nesa24casa]

private void button_Click(object sender, EventArgs e)
{
    this.Close(); // or form.Close(); // or Application.Close();
}