求关闭程序的c#语句

Question

  当我按下按钮之后，能关闭相应的窗口
有这样的语句吗  求各位高手  给两个

Answer 1

this.Close();//关闭当前打开窗口
Application.Exit();//关闭应用程序

Answer 2

JS CODE
Response.Write("<script language=javascript>");
Response.Write("window.parent.close()");     
Response.Write("</script>");

Answer 3

JS CODE
Response.Write("<script language=javascript>");
Response.Write("window.parent.close()");     
Response.Write("</script>");