gridview里面的按钮绑定值，并且点击传回到后台

前台

<asp:TemplateField ShowHeader="False">
     <ItemTemplate>
         <asp:LinkButton ID="LinkButton1"  runat="server" onclick="LinkButton1_Click" CommandArgument='<%# Eval("UserId") %>'>【通过】</asp:LinkButton>
         <asp:LinkButton ID="LinkButton2"  runat="server" onclick="LinkButton2_Click" CommandArgument='<%# Eval("UserId") %>'>【拒绝】</asp:LinkButton>          </ItemTemplate>
    <ItemStyle Width="140px"></ItemStyle>
</asp:TemplateField>

后台

protected void LinkButton1_Click(object sender, EventArgs e)
{
     string id = ((LinkButton)sender).CommandArgument.ToString();
     string update = "update tb_UserExtends set sbpcStatus='通过'where UserId="+id;
     db.db.ExecuteSql(update);
}