UpdateProgress不显示在asp.net web表单中

Question

当我点击保存按钮时，我的联系方式表单不显示UpdateProgress。

下面是联系表单的部分代码。剪切的代码是使用母版页的Contact.aspx页面的一部分。类似的代码适用于不使用母版页的其他页面。我不知道我在做什么错我试着改变UpdateProgress在更新面板里的位置，它没有做任何事情。

除了显示更新进度外，页面正常工作。

我也把延迟3节对代码隐藏文件也

<!-- Contact Form -->       
    <asp:UpdatePanel ID="updPnlContactUs" runat="server" > 
    <ContentTemplate> 

    <asp:Panel ID="pnlContactUs" runat="server" Visible="true" > 
        <table cellpadding="0" cellspacing="8" width="450px" border="0"> 
         <tr> 
          <td colspan="2"><asp:Label ID="lblRequired" CssClass="txtLabelComment" runat="server" Text="[*] indicates a required field."></asp:Label> 
          </td> 
         </tr> 
         <tr> 
          <td width="110px"> 
           <asp:Label ID="lblFullName" runat="server" Text="Full Name" CssClass="txtLabelComment"></asp:Label> 
          </td> 
          <td width="320px"> 
           <asp:TextBox ID="txtFullName" runat="server" 
            CssClass="validate[required] txtbox300Comment" TabIndex="1" 
            ValidationGroup="vgContactUs" ></asp:TextBox> 
           &nbsp;* 
           <asp:RequiredFieldValidator ID="rfv1" runat="server" 
            ControlToValidate="txtFullName"></asp:RequiredFieldValidator> 
           </td> 

         </tr> 
         <tr> 
          <td > 
           <asp:Label ID="lblEmail" runat="server" Text="Email Address" CssClass="txtLabelComment"></asp:Label> 
          </td> 
          <td> 
           <asp:TextBox ID="txtEmail" runat="server" 
            CssClass="validate[required,custom[email]] txtbox300Comment" TabIndex="2" 
            ValidationGroup="vgContactUs" ></asp:TextBox> 
           &nbsp;* 
           <asp:RequiredFieldValidator ID="rfv2" runat="server" 
            ControlToValidate="txtEmail"></asp:RequiredFieldValidator> 
          </td> 
         </tr> 
          <tr> 
           <td> 
            <asp:Label ID="lblPhone" runat="server" CssClass="txtLabelComment" 
             Text="Phone Number"></asp:Label> 
           </td> 

           <td> 
            <asp:TextBox ID="txtPhone" runat="server" 
             CssClass="validate[required, custom[phone]] txtbox300Comment" TabIndex="2" 
             ValidationGroup="vgContactUs"></asp:TextBox> 
            &nbsp;* 
            <asp:RequiredFieldValidator ID="rfvph" runat="server" 
             ControlToValidate="txtEmail"></asp:RequiredFieldValidator> 
           </td> 
         </tr> 
         <tr> 
          <td> 
           <asp:Label ID="lblFax" runat="server" CssClass="txtLabelComment" 
            Text="Fax Number"></asp:Label> 
          </td> 
          <td> 
           <asp:TextBox ID="txtFax" runat="server" 
            CssClass="validate[required,custom[phone]] txtbox300Comment" TabIndex="2" 
            ValidationGroup="vgContactUs"></asp:TextBox> 
           &nbsp;* 
           <asp:RequiredFieldValidator ID="rfvfax" runat="server" 
            ControlToValidate="txtEmail"></asp:RequiredFieldValidator> 
          </td> 
         </tr> 
         <tr> 
          <td> 
           <asp:Label ID="lblCountry" runat="server" CssClass="txtLabelComment" 
            Text="Country"></asp:Label> 
          </td> 
          <td> 
           <asp:DropDownList ID="ddCountry" runat="server" 
            CssClass="validate[required] ddGeneralComment" TabIndex="3"> 
            <asp:ListItem Value=""></asp:ListItem> 
            <asp:ListItem Value="AF">Afghanistan</asp:ListItem> 
           </asp:DropDownList> 
           &nbsp;*<asp:RequiredFieldValidator ID="rfv3" runat="server" 
            ControlToValidate="ddCountry"></asp:RequiredFieldValidator> 
          </td> 
         </tr> 
         <tr> 
          <td> 
           <asp:Label ID="lblMSG" runat="server" CssClass="txtLabelComment" 
            Text="Your Message"></asp:Label> 
          </td> 
          <td> 
           <asp:TextBox ID="txtMessage" runat="server" 
            CssClass="validate[required, maxSize[1000]] txtbox300MComment" MaxLength="10" 
            TabIndex="4" TextMode="MultiLine" ValidationGroup="vgContactUs"></asp:TextBox> 
           &nbsp;*<asp:RequiredFieldValidator ID="rfv4" runat="server" 
            ControlToValidate="txtMessage"></asp:RequiredFieldValidator> 
          </td> 
         </tr> 
         <tr> 
          <td> 
           <asp:Label ID="lblVerification" runat="server" Text="Verification Code" CssClass="txtLabelComment"></asp:Label></td> 
          <td class="captchaAlign"> 
           <uc1:MyCaptcha ID="MyCaptcha1" runat="server" /> 
          </td> 
         </tr> 
         <tr> 
          <td> 
           &nbsp;</td> 
          <td> 
           <div> 
            <asp:Button ID="btnSaveComments" runat="server" CssClass="ButtonContactSave" 
             onclick="btnSaveComments_Click" Text="Send Message" ValidationGroup="vgContactUs" /> 
           <asp:UpdateProgress ID="UpdateProgress1" runat="server" DisplayAfter="0" > 
            <ProgressTemplate> 
              <asp:Image ID="imgLoading" runat="server" ImageUrl="~/images/ajax-loader-bar2.gif" /> Processing..... 
            </ProgressTemplate> 
           </asp:UpdateProgress> 
           </div> 
          </td> 
         </tr> 
         <tr> 
          <td> &nbsp;</td> 
          <td> 

          </td> 
         </tr> 
        </table> 
    </asp:Panel> 
    <asp:Panel ID="pnlContactSuccessMSG" runat="server" Visible="false"> 
    <table align="center" cellpadding="0" cellspacing="0" width="500px"> 
      <tr> 
       <td height="410px" valign="middle" align="center"> 
        <asp:Label ID="lblContactSuccessMSGL1" runat="server" Text="Thank you for contacting Khalaf Al Habtoor Publications."></asp:Label> 
        <br /><br /> 
        <asp:Label ID="lblContactSuccessMSGL2" runat="server" Text="You have successfully submitted your inquiry. Based on your query we will accordingly contact you shortly."></asp:Label> 
        <br /><br /> 
        <asp:Label ID="lblContactSuccessMSGL3" runat="server" Text="Khalaf Al Habtoor Publications"></asp:Label> 
       </td> 
       </tr> 
    </table> 

    </asp:Panel> 
    </ContentTemplate> 
    </asp:UpdatePanel> 

    <!-- Contact Form -->   

Answer 1

尝试把更新面板之外的更新进度