GridVew linkbutton点击时获取点击行label的绑定值

点击按钮事件

protectedvoid LinkBtnUpdate_Click(object sender, EventArgs e)
    {

        LinkButton btn = (LinkButton)sender;
        //找到点击行
        GridViewRow irow = (GridViewRow)btn.NamingContainer;
        Label lbltag = (Label)irow.Cells[0].FindControl("Label1");
        string tbtag = lbltag.Text.Trim();
        Response.Write(tbtag);
        Response.Redirect("Update.aspx?url=news1.aspx&NewsType=1&NewsId="+ tbtag +"");
    }

前台绑定：

<asp:GridView ID="GridTitle" runat="server" AutoGenerateColumns="False" 
                                    CellPadding="4" ForeColor="#333333" Width="100%" 
                        AllowPaging="True" AllowSorting="True" 
                        onrowdatabound="GridTitle_RowDataBound" 
                        onpageindexchanging="GridTitle_PageIndexChanging" PageSize="10">
                                    <RowStyle BackColor="#EFF3FB"/>
                                    <Columns>
                                        <asp:TemplateField>
                                            <HeaderTemplate>
                                                序号
                                            </HeaderTemplate>
                                            <ItemTemplate>
                                   <%# Container.DataItemIndex +1%>
                                            </ItemTemplate>
                                            <ControlStyle Width="20px"/>
                                            <ItemStyle Width="70px"/>
                                        </asp:TemplateField>
                                        <asp:BoundField DataField="NewsTitle" HeaderText="标题">
                                            <ControlStyle Width="70%"/>
                                        </asp:BoundField>
                                        <asp:TemplateField>
                                            <HeaderTemplate>
                                                操作
                                            </HeaderTemplate>
                                            <ItemTemplate>
                                                <asp:LinkButton ID="LinkBtnUpdate" runat="server" onclick="LinkBtnUpdate_Click">编辑</asp:LinkButton>
                                                &nbsp;
                                                <asp:LinkButton ID="LinkBtnDelete" runat="server" 
                                                    onclick="LinkBtnDelete_Click">删除</asp:LinkButton>
                                            </ItemTemplate>
                                            <ItemStyle Width="100px"/>
                                        </asp:TemplateField>
                                        <asp:TemplateField Visible="false">
                                            <ItemTemplate>
                                                <asp:Label ID="Label1" runat="server" Text='<%#Eval("NewsId") %>'>&apos;&gt;</asp:Label>
                                            </ItemTemplate>
                                        </asp:TemplateField>
                                    </Columns>
                                    <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White"/>
                                    <PagerTemplate>
                                        <table align="center" width="400px">
                                            <tr>
                                                <td width="50px">
                                                    第<asp:Label ID="Label1" runat="server" 
                                                        Text="<%# ((GridView)Container.Parent.Parent).PageIndex + 1  %>"/>
                                                    页 
                                                </td>
                                                <td width="50px">
                                                    共/<asp:Label ID="lblPageCount" runat="server" 
                                                        Text="<%# ((GridView)Container.Parent.Parent).PageCount  %>"/>
                                                    页 
                                                </td>
                                                <td width="50px">
                                                    <asp:LinkButton ID="btnFirst" runat="server" CausesValidation="False" 
                                                        CommandArgument="First" CommandName="Page" Text="首页"/>
                                                </td>
                                                <td width="50px">
                                                    <asp:LinkButton ID="btnPrev" runat="server" CausesValidation="False" 
                                                        CommandArgument="Prev" CommandName="Page" Text="上一页"/>
                                                </td>
                                                <td>
                                                    <asp:LinkButton ID="btnNext" runat="server" CausesValidation="False" 
                                                        CommandArgument="Next" CommandName="Page" Text="下一页"/>
                                                </td>
                                                <td width="50px">
                                                    <asp:LinkButton ID="btnLast" runat="server" CausesValidation="False" 
                                                        CommandArgument="Last" CommandName="Page" Text="尾页"/>
                                                </td>
                                            </tr>
                                        </table>
                                    </PagerTemplate>
                                    <PagerStyle  ForeColor="White" HorizontalAlign="Center"/>
                                    <SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333"/>
                                    <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White"/>
                                    <EditRowStyle BackColor="#2461BF"/>
                                    <AlternatingRowStyle BackColor="White"/>
                                </asp:GridView>