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protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
  {
  string strMsg = "ÄãÈ·¶¨ÒªÉ¾³ýÂð£¿";
  int flag = 0;
  Response.Write("<Script Language='JavaScript'>if ( window.confirm('" + strMsg + "')) { "+(flag = 1)+"} else {" +(flag = 0) +"};</script>");
  if (flag == 0)
  {
  e.Cancel = true;
 
  }

  }

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C# code:

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
e.Row.Cells[5].Attributes.Add("onclick", "return confirm('ÄãÈ·¶¨ÒªÉ¾³ýÂð£¿')");

}
}
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