Question

c#鼠标在一个form外点击后 该窗体自动关闭

Answer 1

private void Form1_Deactivate(object sender, EventArgs e) //每当窗体停用的时候发生的事件，在窗体外面点击，其实就还是窗体失去焦点
{
this.Close();
}

Answer 2

private void shutdown(object sender, EventArgs e)
{
this.Close();
} private void Form2_Load(object sender, EventArgs e)
{
this.LostFocus += new EventHandler(shutdown);
}