Gridview 最匹配的重载方法具有一些无效参数

Question

 protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
    {
        if (e.CommandName =="AddClass")
        {
              TextBox tb = GridView1.FooterRow.RenderControl("TBClassName") as TextBox;
 }}

Answer 1

 <asp:TemplateField HeaderText="栏目名称">
            <EditItemTemplate>
                <asp:TextBox ID="TBClassName" runat="server" Text='<%# Bind("SD_ClassName") %>'></asp:TextBox>
            </EditItemTemplate>
            <ItemTemplate>
                <asp:Label ID="Label1" runat="server" Text='<%# Bind("SD_ClassName") %>'></asp:Label>
            </ItemTemplate>
            
                <FooterTemplate>
                        <asp:TextBox ID="TBClassName" Text='' runat="server"></asp:TextBox>
                    </FooterTemplate>
        </asp:TemplateField>
模板列内容

Answer 2

ClassModel.SD_ClassName = ((TextBox)GridView1.FooterRow.RenderControl("TBClassName")).Text;这样也不行 

Answer 3

用FindContronl试试 protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
    {
        if (e.CommandName =="AddClass")
        {
              TextBox tb = (TextBox)GridView1.FooterRow.FindControl("TBClassName");
 }
}还有你的控件是不是在母版里边，如果是的话，要xxMaster.FindControl(GridView1),然后在在GridView1里边FindControl("TBClassName") 

Answer 4

谢谢 没注意  用错了..FindControl 用这个 ok了