获取gridview模板列里面的控件的ID

后台 

public void bind()
    {
        string sqlstr = "select * from t1";
        DataSet myds = constring.Query(sqlstr);
        GridView2.DataSource = myds;
        GridView2.DataBind();
    }

//翻页

    protected void GridView2_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        this.GridView2.PageIndex = e.NewPageIndex;
        bind();
    }

//编辑 

protected void GridView2_RowEditing(object sender, GridViewEditEventArgs e)
  {
      GridView2.EditIndex = e.NewEditIndex;
      bind();
      ((TextBox)(GridView2.Rows[e.NewEditIndex].Cells[3].FindControl("txtbox1"))).Enabled = true;
      ((TextBox)(GridView2.Rows[e.NewEditIndex].Cells[4].FindControl("txtbox2"))).Enabled = true;
  }

//更新

  protected void GridView2_RowUpdating(object sender, GridViewUpdateEventArgs e)
  {

      string sqlstr = "update tblpsworkingday set Exclusive=" + Convert.ToInt32(((TextBox)(GridView2.Rows[e.RowIndex].Cells[3].FindControl("txtbox1"))).Text.ToString().Trim()) + ",maxqty=" + Convert.ToInt32(((TextBox)(GridView2.Rows[e.RowIndex].Cells[4].FindControl("txtbox2"))).Text.ToString().Trim()) + " where id='" + GridView2.DataKeys[e.RowIndex].Value.ToString() + "'";
      int k = constring.Conn(sqlstr);
      GridView2.EditIndex = -1;
      bind();
  }

//取消编辑
  protected void GridView2_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
  {
      GridView2.EditIndex = -1;
      bind();
  }

//删除
  protected void GridView2_RowDeleting(object sender, GridViewDeleteEventArgs e)
  {
      string sqlstr = "delete from tblpsworkingday where id='" + GridView2.DataKeys[e.RowIndex].Value.ToString() + "'";
      int k = constring.Conn(sqlstr);
      bind();
  }

//前台

<asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False" CellPadding="4"
  ForeColor="#333333" GridLines="None"  OnRowEditing="GridView2_RowEditing"
  OnRowUpdating="GridView2_RowUpdating" DataKeyNames="id"  OnRowDeleting="GridView2_RowDeleting"  OnRowCancelingEdit="GridView2_RowCancelingEdit"  AllowPaging="True" PageSize="14"  OnPageIndexChanging="GridView2_PageIndexChanging">
  <FooterStyle  Font-Bold="True" ForeColor="White" />
  <Columns>

    <asp:TemplateField HeaderText="单位名称">
                        <ItemTemplate>
                        <asp:Label ID="lbldw1" runat="server" Text=' <%# meinian_site.connec.constring.CutString(Eval("tblCom_Title").ToString(),5)%>' ToolTip='<%# Eval("tblCom_Title").ToString()%>'></asp:Label>    
                        </ItemTemplate>
                    </asp:TemplateField>
                    <asp:TemplateField HeaderText="门店名称">
                        <ItemTemplate>
                        <asp:Label ID="lblmd1" runat="server" Text=' <%# meinian_site.connec.constring.CutString(Eval("point_name").ToString(),5)%>' ToolTip='<%# Eval("point_name").ToString()%>'></asp:Label>
                        </ItemTemplate>
                    </asp:TemplateField>
                        <asp:TemplateField HeaderText="预约日期">
                        <ItemTemplate>
                             <%# Eval("date","{0:d}")%>
                        </ItemTemplate>
                    </asp:TemplateField>
                    <asp:TemplateField HeaderText="是否独占">
                        <ItemTemplate>
                        <asp:TextBox ID="txtbox1" runat="server" Text=' <%# Eval("Exclusive").ToString() %>' Width="30" Enabled="false" ></asp:TextBox>    
                        </ItemTemplate>
                    </asp:TemplateField>
                    <asp:TemplateField HeaderText="人数">
                        <ItemTemplate>
                        <asp:TextBox ID="txtbox2" runat="server" Text=' <%# Eval("maxqty").ToString() %>'  Width="30" Enabled="false" ></asp:TextBox>    
                        </ItemTemplate>
                    </asp:TemplateField>

  <asp:CommandField HeaderText="编辑" ShowEditButton="True" />
  <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />

  </Columns>
  <RowStyle BackColor="#EFF3FB"  />
            <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
            <PagerStyle BackColor="#2461BF" 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>