Delete Confirmation inside gridview delete on Client Side in asp.net

///*******************HtML

<asp:GridView DataKeyNames="CategoryID" ID="GridView1"

       runat="server" AutoGenerateColumns="False"

       OnRowCommand="GridView1_RowCommand"

       OnRowDataBound="GridView1_RowDataBound"

       >

  <Columns>

   <asp:BoundField DataField="ID" HeaderText="ID" />

     <ItemTemplate>

       <asp:LinkButton ID="LinkButton1" CommandArgument='<%# Eval("ID") %>'

         CommandName="Delete" runat="server">Delete</asp:LinkButton>

     </ItemTemplate>

   </asp:TemplateField>

  </Columns>

</asp:GridView>

//******************RowDataBound

protected void GridView1_RowDataBound(object sender, 

                         GridViewRowEventArgs e)

{

  if (e.Row.RowType == DataControlRowType.DataRow)

  {

    LinkButton lb = (LinkButton)e.Row.FindControl("LnkDel"); 

    lb.Attributes.Add("onclick", "javascript:return " +

    "confirm('Are you sure you want to delete this record " +

    DataBinder.Eval(e.Row.DataItem, "ID") + "')"); 

  }

}

//******************** RowCommand

protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
  if (e.CommandName == "Delete")
  {
    // get the ID of the clicked row
    int ID = Convert.ToInt32(e.CommandArgument);
    // Delete the record 
    DeleteRecordByID(ID);
    // Implement this on your own :) 
  }
}


//*****************or Button Click