更新面板也会在 Web 表单中触发其他用户控件 asp.net 更新进度

Question

我正在开发一个网络表单，它有两个UpdatePanels;一个在UserControl内部，另一个在主页内。当调用主页的寻呼机用户控件(< 1 2 3 >)时，它会显示"最新消息"部分的相应UpdateProgress，但也会显示"订阅"用户控件的进度条。

我试图更改属性，但它一直在出现; 如果我保持UpdateMode="Conditional"用于用户控制，则进度条将循环并连续显示。

如何更改此代码以仅显示相应的进度条。我已经看了 50 多个例子，但修女似乎匹配。如果有人可以帮助我解决这个问题，我将不胜感激。

 <!-- LatestNewArea -->
    <div class="LatestNewArea">
        <asp:UpdatePanel ID="updLatestNews" runat="server" UpdateMode="Conditional">
        <ContentTemplate>
            <asp:Repeater ID="rptLatestNews" runat="server" EnableViewState="False" onitemdatabound="rptLatestNews_ItemDataBound">
                <ItemTemplate>
                <asp:HyperLink ID="hylLatestNews" CssClass="chylLatestNews" runat="server" NavigateUrl=''>
                    <div class="LatestNewsWrapper">
                        <div class="LatestNewsDateBox">
                            <div class="LNYYYY">
                                <asp:Label ID="lblYYYY" runat="server" Text="2012"></asp:Label>  
                            </div>
                            <div class="LNDDMM">
                                <asp:Label ID="lblDDMM" runat="server" Text="12/08"></asp:Label> 
                            </div>
                        </div>
                        <div class="LatestNewsTitle">
                            <asp:Label ID="lblLatestNewsTitle" runat="server" Text="First News for the Website"></asp:Label>
                        </div>
                        <div class="LatestNewsHDate">
                            <asp:Label ID="Label1" runat="server" Text="Hijri: 15 Rajab 1433"></asp:Label>
                        </div>
                        <div class="LatestNewsDesc">
                            <asp:Label ID="Label2" runat="server" Text=""></asp:Label>
                        </div>
                    </div>
                    <div class="LNHLine"> </div>
                </asp:HyperLink>
            </ItemTemplate>
        </asp:Repeater>
        <!-- Pager -->
        <div class="LatestNewsPagerWrapper">
        <div class="LatestNewsPagerInnerWrapper">
            <asp:UpdateProgress ID="UpdateProgress1" runat="server" DisplayAfter="50" AssociatedUpdatePanelID="updLatestNews" >
                <ProgressTemplate>
                <div id="imgLoadingArticleList" class="imgLoadingArticleList">
                    <asp:Image ID="imgLoading" runat="server" ImageUrl="~/images/ajax-loader-bar2.gif"  />
                </div>
                </ProgressTemplate>
            </asp:UpdateProgress>
            <uc1:PagerControl ID="PagerControl1" runat="server"  CssClass="gold-pager"  PageMode="LinkButton"  />
        </div>
        </div>
        <!-- Pager -->
    </ContentTemplate>
    </asp:UpdatePanel>
    </div>
    <!-- LatestNewArea -->

用户控件页代码

    <script type="text/javascript">
        function onUpdating() {
            // get the divImage
            var panelProg = $get('divImage');
            // set it to visible
            panelProg.style.display = '';
            // hide label if visible      
            var lbl = $get('<%= this.pnlSubscribe.ClientID %>');
            lbl.innerHTML = '';
        }
        function onUpdated() {
            // get the divImage
            var panelProg = $get('divImage');
            // set it to invisible
            panelProg.style.display = 'none';
        }
    </script>
<table cellpadding="0" cellspacing="0" class="SubscribeContainer">
    <tr>
        <td align="center">
            <table cellpadding="0" cellspacing="0" class="SubscribeWrapper" border="0">
                <tr>
                    <td valign="top">
                    <asp:UpdatePanel ID="updSubscribe" runat="server" >
                        <ContentTemplate>  
                                <asp:Panel ID="pnlSubscribe" runat="server" Height="10px">
                                    <div class="SubHeading"><asp:Label ID="lblTitle" runat="server" Text="JOIN US"></asp:Label></div>
                                    <div class="dSubName">
                                        <asp:TextBox ID="txtName" CssClass="txtSubscribe" runat="server" Text="NAME" onfocus="if(this.value=='NAME')this.value='';" onblur="if(this.value=='')this.value='NAME';"></asp:TextBox>
                                    </div>
                                    <div class="dSubEmail">
                                        <asp:TextBox ID="txtEmail" CssClass="txtSubscribe" runat="server" Text="YOUR EMAIL" onfocus="if(this.value=='YOUR EMAIL')this.value='';" onblur="if(this.value=='')this.value='YOUR EMAIL';"></asp:TextBox>
                                        <asp:RequiredFieldValidator ID="rfvEmailSub"  runat="server" ErrorMessage="*" 
                                            ControlToValidate="txtEmail" ValidationGroup="SubEmail" ></asp:RequiredFieldValidator>
                                        <asp:RegularExpressionValidator ID="revEmailSub" runat="server" 
                                            ErrorMessage="*" ControlToValidate="txtEmail" ValidationExpression="w+([-+.']w+)*@w+([-.]w+)*.w+([-.]w+)*" 
                                            ValidationGroup="SubEmail" ></asp:RegularExpressionValidator>
                                    </div>
                                    <div class="dSubSubmit">
                                        <asp:Button ID="btnSubscribe" CssClass="btnSubscribe" runat="server" ValidationGroup="SubEmail" Text="Subscribe" onclick="btnSubscribe_Click" />
                                    </div> 
                                </asp:Panel> 
                                    <div class="dSubMSG"> 
                                    <asp:Label ID="lblMSG" runat="server" Text=""></asp:Label>
                                </div>
                                            <div id="divImage" style="display:none" class="dSubAni">
                                                <asp:Image ID="Image1" runat="server" ImageUrl="~/Images/loader-sub.png" Visible="true"/>
                                            </div>
                        </ContentTemplate>
                    </asp:UpdatePanel>
                    <asp:UpdatePanelAnimationExtender ID="UpdatePanelAnimationExtender1"  TargetControlID="updSubscribe" runat="server">
                    <Animations>
                        <OnUpdating>
                            <Parallel duration="0">
                                <ScriptAction Script="onUpdating();" />
                                <EnableAction AnimationTarget="btnSubscribe" Enabled="false" />                    
                            </Parallel>
                        </OnUpdating>
                        <OnUpdated>
                            <Parallel duration="0">
                                <ScriptAction Script="onUpdated();" /> 
                                <EnableAction AnimationTarget="btnSubscribe" Enabled="true" />
                            </Parallel>
                        </OnUpdated>
                    </Animations>
                    </asp:UpdatePanelAnimationExtender>  

                       </td>
                    </tr>
                </table>
            </td>
        </tr>
    </table>  

Answer 1

我尝试了许多解决方案，但没有一个以正确的方式工作。最后，我决定用UpdateProgress替换UpdatePanelAnimationExtender用户控制，因为我能够捕获启动的UpdatePanel以进行AsyPostback

由于某种原因，我在使用UpdatePanelAnimationExtender时无法捕获AsyPostback

下面是一个工作代码

    // Function to hide control on update
            function onUpdateOfSubscribe() {
                var panelProg = $get('divImage');
                // set it to visible
                panelProg.style.display = '';
                // hide label if visible      
                var lbl = $get('<%= this.pnlSubscribe.ClientID %>');
                lbl.innerHTML = '';
            }
    //Code to track the initiating event so to associate updateprogress
        var currentPostBackElement;
        function pageLoad() {
            var manager = Sys.WebForms.PageRequestManager.getInstance();
            manager.add_initializeRequest(OnInitializeRequest);
        }
        //On OnInitializeRequest
        function OnInitializeRequest(sender, args) {
            var manager = Sys.WebForms.PageRequestManager.getInstance();
            currentPostBackElement = args.get_postBackElement().parentElement;
            var cmdAuthoriseButton = '<%= btnSubscribe.ClientID %>';
            if (cmdAuthoriseButton == args._postBackElement.id) {
                // Show UpdateProgress for subscribe 
                onUpdateOfSubscribe();
            }
        }
    </script>
<table cellpadding="0" cellspacing="0" class="SubscribeContainer">
        <tr>
            <td align="center">
                <table cellpadding="0" cellspacing="0" class="SubscribeWrapper" border="0" >
                    <tr>
                        <td valign="top">
                        <asp:UpdatePanel ID="updSubscribe" runat="server" UpdateMode="Conditional"   >
                            <ContentTemplate>  
                                    <asp:Panel ID="pnlSubscribe" runat="server" Height="10px">
                                        <div class="SubHeading"><asp:Label ID="lblTitle" runat="server" Text="JOIN US"></asp:Label></div>
                                        <div class="dSubName">
                                            <asp:TextBox ID="txtName" CssClass="txtSubscribe" runat="server" Text="NAME" onfocus="if(this.value=='NAME')this.value='';" onblur="if(this.value=='')this.value='NAME';"></asp:TextBox>
                                        </div>
                                        <div class="dSubEmail">
                                            <asp:TextBox ID="txtEmail" CssClass="txtSubscribe" runat="server" Text="YOUR EMAIL" onfocus="if(this.value=='YOUR EMAIL')this.value='';" onblur="if(this.value=='')this.value='YOUR EMAIL';"></asp:TextBox>
                                            <asp:RequiredFieldValidator ID="rfvEmailSub"  runat="server" ErrorMessage="*" 
                                                ControlToValidate="txtEmail" ValidationGroup="SubEmail" ></asp:RequiredFieldValidator>
                                            <asp:RegularExpressionValidator ID="revEmailSub" runat="server" 
                                                ErrorMessage="*" ControlToValidate="txtEmail" ValidationExpression="w+([-+.']w+)*@w+([-.]w+)*.w+([-.]w+)*" 
                                                ValidationGroup="SubEmail" ></asp:RegularExpressionValidator>
                                        </div>
                                        <div class="dSubSubmit">
                                            <asp:Button ID="btnSubscribe" CssClass="btnSubscribe" runat="server" ValidationGroup="SubEmail" Text="Subscribe" onclick="btnSubscribe_Click" />
                                        </div> 
                                    </asp:Panel> 
                                        <div class="dSubMSG"> 
                                        <asp:Label ID="lblMSG" runat="server" Text=""></asp:Label>
                                    </div>
                                                <div id="divImage" style="display:none" class="dSubAni">
                                                    <asp:Image ID="Image1" runat="server" ImageUrl="~/Images/loader-sub.png" Visible="true"/>
                                                </div>
                            </ContentTemplate>
                            <Triggers>
                                <asp:AsyncPostBackTrigger ControlID="btnSubscribe" EventName="Click" />
                            </Triggers>
                        </asp:UpdatePanel>
                    <asp:UpdateProgress ID="UpdateProgress1" runat="server" AssociatedUpdatePanelID="updSubscribe" >
                        <ProgressTemplate>
                        </ProgressTemplate>
                    </asp:UpdateProgress>

                           </td>
                        </tr>
                    </table>
                </td>
            </tr>
        </table>