在asp.net中使用jquery获取用户控件元素值

Question

我想使用jquery在我的aspx页面中获取usercontrol标签值。这是我的用户

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="Group.ascx.cs" Inherits="website.Inventory.Setup.UserControl.Group" %> 
    <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %> 
    <style type="text/css"> 
     .style1 
     { 
      width: 100%; 
      margin-top: 0px; 
     } 
     .style2 
     { 
      width: 12%; 
     } 
    </style> 
    <table class="style1"> 
     <tr> 
      <td> 
      </td> 
     </tr> 
     <tr> 
      <td> 
       <table class="style1"> 
        <tr> 
         <td style="width: 2%"> 
          &nbsp; 
         </td> 
         <td class="style2" style="width: 13%"> 
          &nbsp;&nbsp; 
         </td> 
         <td style="width: 22%"> 
          &nbsp;&nbsp; 
         </td> 
         <td style="width: 68%"> 
          &nbsp;&nbsp; 
         </td> 
        </tr> 
        <tr> 
         <td align="right" class="error"> 
          * 
         </td> 
         <td class="style2"> 
          <asp:Label ID="Label6" runat="server" Text="Group:"></asp:Label> 
         </td> 
         <td> 
          <asp:TextBox ID="txtNameAdd" runat="server" MaxLength="15" ValidationGroup="grpLevelAdd" 
           Width="164px" CssClass="req_bor"></asp:TextBox> 
         </td> 
         <td> 
          <asp:RequiredFieldValidator ID="rfvNameAdd" runat="server" ControlToValidate="txtNameAdd" 
           Display="None" ErrorMessage="Required!" SetFocusOnError="True" ValidationGroup="grpGroupAdd"></asp:RequiredFieldValidator> 
          <asp:ValidatorCalloutExtender ID="rfvNameAdd_ValidatorCalloutExtender" runat="server" 
           Enabled="True" TargetControlID="rfvNameAdd"> 
          </asp:ValidatorCalloutExtender> 
         </td> 
        </tr> 
        <tr> 
         <td> 
          &nbsp; 
         </td> 
         <td class="style2"> 
          <asp:Label ID="Label20" runat="server" Text="Description:"></asp:Label> 
         </td> 
         <td> 
          <asp:TextBox ID="txtDescriptionAdd" runat="server" MaxLength="15" ValidationGroup="grpLevelAdd" 
           Width="164px" TextMode="MultiLine"></asp:TextBox> 
         </td> 
         <td> 
          &nbsp; 
         </td> 
        </tr> 
        <tr> 
         <td> 
          &nbsp; 
         </td> 
         <td class="style2"> 
          <asp:Label ID="Label15" runat="server" Text="Active:"></asp:Label> 
         </td> 
         <td> 
          <asp:CheckBox ID="chkActiveAdd" runat="server" Text="Yes" Checked="True" /> 
         </td> 
         <td> 
          &nbsp;&nbsp; 
         </td> 
        </tr> 
        <tr> 
         <td> 
          &nbsp; 
         </td> 
         <td class="style2"> 
          &nbsp;&nbsp; 
         </td> 
         <td height="20px" valign="middle" colspan="2"> 
          <asp:Label ID="lblmsgAdd" runat="server" CssClass="error"></asp:Label> 
          &nbsp;&nbsp; 
         </td> 
        </tr> 
        <tr> 
         <td> 
          &nbsp; 
         </td> 
         <td class="style2"> 
          &nbsp;&nbsp; 
         </td> 
         <td colspan="2"> 
          <asp:Button ID="btnAdd" runat="server" Text="Add" OnClick="btnAdd_Click" ValidationGroup="grpGroupAdd" /> 
         </td> 
        </tr> 
        <tr> 
         <td> 
          &nbsp; 
         </td> 
         <td class="style2"> 
          &nbsp;&nbsp; 
         </td> 
         <td> 
          &nbsp;&nbsp; 
         </td> 
         <td> 
          &nbsp;&nbsp; 
         </td> 
        </tr> 
       </table> 
      </td> 
     </tr> 

</table> 

这里是我的控制

<uc1:Group ID="UCGroup" ClientIDMode="Static" runat="server" /> 

我想在我的aspx页面获得lblmsgAdd值为了这个，我正在做这样的

var a = $('#<%=UCGroup.ClientID%>').find('#<%=lblmsgAdd.ClientID%>').val(); 

但这不是工作，我如何得到我的标签价值。 需要帮助

Answer 1

创建用户控制，返回你的标签的客户端ID如下

public string AddMessageClientId 
{ 
    get 
    { 
     return lblmsgAdd.ClientID; 
    } 
} 

然后调用它在你的JQuery如下

var a = $('#<%= AddMessageClientId %>').val();