WPF学习笔记-如何按ESC关闭窗口

　　　　public ModifyPrice()
{
InitializeComponent();
this.KeyDown += ModifyPrice_KeyDown;
}

private void ModifyPrice_KeyDown(object sender, KeyEventArgs e)
{
if (e.Key == Key.Escape)//Esc键
{
this.Close();
}
}