c# - 如何设置 RequiredFieldValidator 以针对具有多个实例的特定用户控件进行验证？

Question

假设我有一个在 aspx 文件中调用了 7 次的用户控件，我将字段验证器控件放在该用户控件中，问题是每次我单击一些导致回发的按钮时，字段验证器总是针对所有实例验证控件我的用户控件，我想要的是针对特定的用户控件进行验证，我试过这个:

<asp:TextBox runat="server" ID="DateNew" CssClass="time" Width="185px"/>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ErrorMessage="Date can not be empty" ControlToValidate="DateNew" ValidationGroup='<%= ClientID %>' Text="*"> </asp:RequiredFieldValidator> 
 <asp:Button runat="server" ID="NewSchedule" Text="Schedule" CssClass="bgrey" 
        OnClientClick="CheckKeyValues()" OnClick="NewSchedule_Click"  ValidationGroup='<%= ClientId %>'/>

这是行不通的……有什么更正吗？谢谢之前。顺便说一句，一些例子会很棒。

更新:带有调用 7 次的用户控件的 aspx 文件

 <asp:ScriptManager id="ScriptManager1" runat="server">
                        </asp:ScriptManager>
                        <div id="divError" class="n fail" style="display:none; margin:15px; width:2330px">
                             <h5>
                                The following errors were found
                             </h5>
                             <asp:ValidationSummary ID="ValidationSummary" runat="server" />
                        </div>    
                        <div class="warea clearfix" style="width: 2350px">
                            <div style="float:left;">
                                <uc1:ucApplicationProgress runat="server" id="ucApplicationProgress" TestType="Interview 1" />
                            </div>
                             <div style="float:left;">
                                <uc1:ucApplicationProgress runat="server" id="ucApplicationProgress1" TestType="Interview 2"/>
                            </div>
                             <div style="float:left;">
                               <uc1:ucApplicationProgress runat="server" id="ucApplicationProgress2" TestType="Interview 3"/>
                            </div>
                             <div style="float:left;">
                                <uc1:ucApplicationProgress runat="server" id="ucApplicationProgress3" TestType="English Test"/>
                            </div>
                             <div style="float:left;">
                                <uc1:ucApplicationProgress runat="server" id="ucApplicationProgress4" TestType="Medical Examination"/>
                            </div>
                             <div style="float:left;">
                                <uc1:ucApplicationProgress runat="server" id="ucApplicationProgress5" TestType="Internal Psycho Test"/>
                            </div>
                             <div style="float:left;">
                                <uc1:ucApplicationProgress runat="server" id="ucApplicationProgress6" TestType="External Psycho Test"/>
                            </div>
                        </div>

用户控制文件:

 <h3><asp:Label runat="server" ID="TypeNew"/></h3>
              <table>
                  <tr>
                     <td>Date</td>
                     <td>
                         <asp:TextBox runat="server" ID="DateNew" CssClass="time" Width="185px"/>
                         <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ErrorMessage="Date can not be empty" ControlToValidate="DateNew">*</asp:RequiredFieldValidator>
                     </td>
                  </tr>
                  <tr>
                      <td>Time</td>
                      <td>
                          <asp:TextBox runat="server" ID="HourNew"  Width="40px"/> 
                          <asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ErrorMessage="Time can not be empty" ControlToValidate="HourNew" Text="*">
                          </asp:RequiredFieldValidator>:  
                          <asp:TextBox runat="server" ID="MinuteNew"  Width="40px"/>
                          <asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" ErrorMessage="Minute can not be empty" ControlToValidate="MinuteNew" Text="*">
                          </asp:RequiredFieldValidator>
                      </td>
                  </tr>
                  <tr>
                      <td>Location</td>
                      <td>
                          <asp:TextBox runat="server" ID="LocationNew" TextMode="MultiLine"/>
                          <asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server" ErrorMessage="Location can not be empty" ControlToValidate="LocationNew" Text="*">
                          </asp:RequiredFieldValidator>
                      </td>
                  </tr>
                  <tr>
                      <td>Interviewer</td>
                      <td>
                          <asp:TextBox runat="server" ID="InterviewerNew" autocomplete="off" onchange="MarkFlag(this.id)"/>
                          <asp:RequiredFieldValidator ID="RequiredFieldValidator5" runat="server" ErrorMessage="Interviewer can not be empty" ControlToValidate="InterviewerNew" Text="*">
                          </asp:RequiredFieldValidator>
                          <asp:HiddenField runat="server" ID="InterviewerKeys"/>
                          <asp:HiddenField runat="server" ID="InterviewerEmail"/>    
                      </td>
                  </tr>
                  <tr>
                      <td>&nbsp;</td>
                      <td><asp:Button runat="server" ID="NewSchedule" Text="Schedule" CssClass="bgrey" OnClientClick="CheckKeyValues()" OnClick="NewSchedule_Click" /></td>
                  </tr>
              </table>

C#:

 public String ValidationGroup
        {
            get 
            { 
                return RequiredFieldValidator1.ValidationGroup;
            }
            set
            {
                RequiredFieldValidator1.ValidationGroup = value;
                RequiredFieldValidator2.ValidationGroup = value;
                RequiredFieldValidator3.ValidationGroup = value;
                RequiredFieldValidator4.ValidationGroup = value;
                RequiredFieldValidator5.ValidationGroup = value;
                NewSchedule.ValidationGroup = value;
            }
        }


  protected void Page_Load(object sender, EventArgs e)
        {

                ValidationGroup = this.ID;
        }

Answer 1

在名为 ValidationGroup 的 Web 用户控件上公开一个属性:

public String ValidationGroup
{
    get { return RequiredFieldValidator1.ValidationGroup; }
    set { 
        RequiredFieldValidator1.ValidationGroup = value; 
        NewSchedule.ValidationGroup = value; 
    }
}

然后为您在网络表单上创建的每个实例将其设置为唯一值。