如何訪問嵌套的GridView

泰雷是水平的的GridView（嵌套）四，一切工作正常，但對「gvEmployees」如何訪問嵌套的GridView

我有機會"gvDepartments", "gvFuctions" & "gvSections" 我怎樣才能訪問「gvEmployees」？

<asp:GridView ID="gvDepartments" runat="server" AutoGenerateColumns="false" CssClass="Grid" Width="100%" DataKeyNames="EMPLOYEE_NUMBER"> 
     <Columns> 
      <asp:TemplateField> 
       <ItemTemplate> 
        <asp:ImageButton ID="imgFunctionShow" runat="server" OnClick="Show_Hide_FunctionsGrid" ImageUrl="~/images/plus.png" CommandArgument="Show" /> 
        <asp:Panel ID="pnlFunctions" runat="server" Visible="false" Style="position: relative"> 
         <asp:GridView ID="gvFunctions" runat="server" AutoGenerateColumns="false" PageSize="10" Width="100%" AllowPaging="true" 
          OnPageIndexChanging="OnFunctionsGrid_PageIndexChanging" CssClass="ChildGrid" DataKeyNames="EMPLOYEE_NUMBER"> 
          <Columns> 
           <asp:TemplateField> 
            <ItemTemplate> 
             <asp:ImageButton ID="imgSectionsShow" runat="server" OnClick="Show_Hide_SectionsGrid" ImageUrl="~/images/plus.png" CommandArgument="Show" /> 
             <asp:Panel ID="pnlSections" runat="server" Visible="false" Style="position: relative"> 
              <asp:GridView ID="gvSections" runat="server" AutoGenerateColumns="false" PageSize="10" Width="100%" 
               AllowPaging="true" OnPageIndexChanging="OnSectionsGrid_PageIndexChanging"> 
               <Columns> 
                <asp:TemplateField> 
                 <ItemTemplate> 
                  <asp:ImageButton ID="imgEmployeesShow" runat="server" OnClick="Show_Hide_EmployeesGrid" ImageUrl="~/images/plus.png" CommandArgument="Show" /> 
                  <asp:Panel ID="pnlEmployees" runat="server" Visible="false" Style="position: relative"> 
                   <asp:GridView ID="gvEmployees" runat="server" AutoGenerateColumns="false" PageSize="10" Width="100%" 
                    AllowPaging="true" OnPageIndexChanging="OnEmployeesGrid_PageIndexChanging" > 
                    <Columns> 
                     <asp:BoundField DataField="EMPLOYEE_NUMBER" HeaderText="Employee#" /> 
                     <asp:BoundField DataField="EMPNAMEE" HeaderText="Employee Name" /> 
                     <asp:BoundField DataField="Position" HeaderText="Position" /> 
                    </Columns> 
                   </asp:GridView> 
                  </asp:Panel> 
                 </ItemTemplate> 
                </asp:TemplateField> 
                <asp:BoundField DataField="EMPLOYEE_NUMBER" HeaderText="Employee#" /> 
                <asp:BoundField DataField="EMPNAMEE" HeaderText="Employee Name" /> 
                <asp:BoundField DataField="Section" HeaderText="Section" /> 
                <asp:BoundField DataField="Position" HeaderText="Position" /> 
                <asp:BoundField DataField="SVName" HeaderText="Reporting To" /> 
               </Columns> 
              </asp:GridView> 
             </asp:Panel> 
            </ItemTemplate> 
           </asp:TemplateField> 
           <asp:BoundField DataField="EMPLOYEE_NUMBER" HeaderText="Employee#" /> 
           <asp:BoundField DataField="EMPNAMEE" HeaderText="Employee Name" /> 
           <asp:BoundField DataField="FunctionName" HeaderText="Function Name" /> 
           <asp:BoundField DataField="Position" HeaderText="Position" /> 
           <asp:BoundField DataField="SVName" HeaderText="Reporting To" /> 
          </Columns> 
         </asp:GridView> 
        </asp:Panel> 
       </ItemTemplate> 
      </asp:TemplateField> 
      <asp:BoundField DataField="EMPLOYEE_NUMBER" HeaderText="Employee#" /> 
      <asp:BoundField DataField="EMPNAMEE" HeaderText="Employee Name" /> 
      <asp:BoundField DataField="Department" HeaderText="Department" /> 
      <asp:BoundField DataField="Position" HeaderText="Position" /> 
      <asp:BoundField DataField="LocInfo" HeaderText="Location" /> 
      <asp:BoundField DataField="SVName" HeaderText="Reporting To" /> 
     </Columns> 
    </asp:GridView>

C＃代碼：

protected void Show_Hide_EmployeesGrid(object sender, EventArgs e) 
{ 
    ImageButton imgShowHide = (sender as ImageButton); 
    GridViewRow row = (imgShowHide.NamingContainer as GridViewRow); 
    if (imgShowHide.CommandArgument == "Show") 
    { 
     row.FindControl("pnlEmployees").Visible = true; 
     imgShowHide.CommandArgument = "Hide"; 
     imgShowHide.ImageUrl = "~/images/minus.png"; 
     string empId = (row.NamingContainer as GridView).DataKeys[row.RowIndex].Value.ToString();    
     GridView gvEmployees = row.FindControl("gvEmployees") as GridView; 
     BindEmployees(empId, gvEmployees); 
     //gvEmployees. 
    } 
    else 
    { 
     row.FindControl("pnlEmployees").Visible = false; 
     imgShowHide.CommandArgument = "Show"; 
     imgShowHide.ImageUrl = "~/images/plus.png"; 
    } 
} 

private void BindEmployees(string empId, GridView gvEmployees) 
{ 
    gvEmployees.ToolTip = empId.ToString(); 
    gvEmployees.DataSource = GetData(string.Format("SELECT empinfo_v_update.EMPLOYEE_NUMBER, empinfo_v_update.EMPNAMEE, empinfo_v_update.POSITION, empinfo_v_update.FunctionName, " + 
         " empinfo_v_update.UserLevel, UserLevel.Description, empinfo_v_update.Section, 0 AS EmployeeLevel, " + 
         " empinfo_v_update_1.EMPNAMEE AS SVName " + 
         " FROM empinfo_v_update INNER JOIN " + 
         " UserLevel ON empinfo_v_update.UserLevel = UserLevel.UserLevel INNER JOIN " + 
         " empinfo_v_update AS empinfo_v_update_1 ON " + 
         " empinfo_v_update.SupervisorID = empinfo_v_update_1.EMPLOYEE_NUMBER " + 
         " WHERE (empinfo_v_update.SupervisorID ='{0}') ORDER BY LEN(empinfo_v_update.EMPLOYEE_NUMBER),empinfo_v_update.EMPLOYEE_NUMBER", empId)); 

    gvEmployees.DataBind(); 
} 

protected void OnEmployeesGrid_PageIndexChanging(object sender, GridViewPageEventArgs e) 
{ 
    GridView gvEmployees = (sender as GridView); 
    gvEmployees.PageIndex = e.NewPageIndex; 
    BindEmployees(gvEmployees.ToolTip, gvEmployees); 
}

我試過代碼在C＃如下創作的：

來源

2015-04-05 Masood Virk

有一個簡單的example，它很適合我，

來源

2015-04-06 13:31:55

如何訪問嵌套的GridView

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