<asp:GridView ID="GridView1" runat="server" AutoGenerateSelectButton="True"
DataKeyNames="pr_key" onrowcommand="GridView1_RowCommand"
Width="100%">
<Columns>
<asp:HyperLinkField DataTextField="pr_key" HeaderText="pr_key"
NavigateUrl="~/WorkFlow/RequestOrder.aspx?id=" Target="_blank" DataNavigateUrlFields="pr_key" DataNavigateUrlFormatString="~/WorkFlow/RequestOrder.aspx?id={0}" />
</Columns>
</asp:GridView>