带有 GridView 的 Ajax 控件工具包悬停菜单答案

【问题标题】：Ajax control Toolkit Hover Menu with GridView带有 GridView 的 Ajax 控件工具包悬停菜单
【发布时间】：2015-12-16 18:49:07
【问题描述】：

您好，我正在尝试在http://www.asp.net/ajaxLibrary/AjaxControlToolkitSampleSite/HoverMenu/HoverMenu.aspx 上实现与示例悬停菜单相同的功能

但是，当我的 gridview 显示和我将鼠标悬停在菜单上时，但仅针对整个 gridview 而不是示例中的每一行？目前菜单按钮什么都不做。

    <asp:UpdatePanel ID="up1" runat="server">
        <ContentTemplate>

            <asp:GridView ID="GridView1" runat="server"
                AutoGenerateColumns="False" DataSourceID="BookingsSQL"
                ShowHeader="False" Width="100%" BackColor="Azure" GridLines="None" >
                <Columns>
                    <asp:BoundField DataField="programme_name" HeaderText="programme_name" 
                        SortExpression="programme_name" />
                    <asp:BoundField DataField="Start" HeaderText="Start" SortExpression="Start" />
                    <asp:BoundField DataField="Finish" HeaderText="Finish" 
                        SortExpression="Finish" />
                    <asp:BoundField DataField="Source" HeaderText="Source" 
                        SortExpression="Source" />
                    <asp:BoundField DataField="Destination" HeaderText="Destination" 
                        SortExpression="Destination" />
                    <asp:BoundField DataField="Comment" HeaderText="Comment" 
                        SortExpression="Comment" />
                </Columns>
            </asp:GridView>
            <asp:SqlDataSource ID="BookingsSQL" runat="server"
                ConnectionString="<%$ ConnectionStrings:BookingsConnectionString %>" 
                SelectCommand="SELECT [programme name] AS programme_name, [Start], [Finish], [Source], [Destination], [Comment] FROM [Bookings]">

            </asp:SqlDataSource>

            <asp:HoverMenuExtender ID="HoverMenuExtender1" runat="server"
             TargetControlID="GridView1"
                PopupControlID="PopupMenu"
                HoverCssClass="popupHover"
                PopupPosition="Left"
                OffsetX="0"
                OffsetY="0"
                PopDelay="50">
            </asp:HoverMenuExtender>
           <asp:Panel CssClass="popupMenu" ID="PopupMenu"  runat="server">
                <asp:LinkButton ID="LinkButton1" runat="server" CommandName="Edit" Text="Edit" />
                <br />
                <asp:LinkButton ID="LinkButton2" runat="server" 
                 CommandName="Delete" Text="Delete" />
            </asp:Panel>

        </ContentTemplate>

    </asp:UpdatePanel>

使用 jquery hover 尝试了几种不同的方法，但这将是最好的解决方案。请提供任何帮助。谢谢。

【问题讨论】：

只需打开一个随 AjaxControlToolkit 一起提供的示例网站，看看这个功能是如何实现的。
Bookings表的哪个字段是主键？

标签： asp.net gridview ajaxcontroltoolkit

【解决方案1】：

有解决办法。为每一行实现 HoverExtender 并不是那么棘手，因为这在示例工具包示例中显示，因为它可以为列标题提供排序。

请注意，Bookings 表中添加了代理主键，以允许编辑所有字段值。还有用于编辑开始和结束字段值的 jQuery datepicker 插件。您可以改用 AjaxControlToolkit 中的 DatePickerExtender，但在这种情况下，必须为网格中的每一行单独添加这些扩展程序以及 HoverExtenders。

<asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False" DataSourceID="BookingsSQL"
     ShowHeader="False" Width="100%" BackColor="Azure" GridLines="None" DataKeyNames="ID">
     <Columns>
          <asp:TemplateField>
               <ItemTemplate>
                    <table runat="server" visible="<%# Container.DataItemIndex == 0 %>">
                         <tr>
                              <th width="20%">
                                   <asp:LinkButton runat="server" CommandName="Sort" CommandArgument="programme_name">
                                        Programme Name
                                   </asp:LinkButton>
                              </th>
                              <th width="20%">
                                   <asp:LinkButton runat="server" CommandName="Sort" CommandArgument="Start">
                                        Start
                                   </asp:LinkButton>
                              </th>
                              <th width="20%">
                                   <asp:LinkButton runat="server" CommandName="Sort" CommandArgument="Finish">
                                        Finish
                                   </asp:LinkButton>
                              </th>
                              <th width="20%">
                                   <asp:LinkButton runat="server" CommandName="Sort" CommandArgument="Source">
                                        Source
                                   </asp:LinkButton>
                              </th>
                              <th width="20%">
                                   <asp:LinkButton runat="server" CommandName="Sort" CommandArgument="Destination">
                                        Destination
                                   </asp:LinkButton>
                              </th>
                              <th width="20%">
                                   <asp:LinkButton runat="server" CommandName="Sort" CommandArgument="Comment">
                                        Comment
                                   </asp:LinkButton>
                              </th>
                         </tr>
                    </table>
                    <asp:Panel runat="server" ID="ItemContainer">
                         <table width="100%">
                              <tr>
                                   <td width="20%">
                                        <%# Eval("programme_name") %>
                                   </td>
                                   <td width="20%">
                                        <%# Eval("Start", "{0:dd/MM/yyyy}") %>
                                   </td>
                                   <td width="20%">
                                        <%# Eval("Finish", "{0:dd/MM/yyyy}") %>
                                   </td>
                                   <td width="20%">
                                        <%# Eval("Source") %>
                                   </td>
                                   <td width="20%">
                                        <%# Eval("Destination") %>
                                   </td>
                                   <td width="20%">
                                        <%# Eval("Comment") %>
                                   </td>
                              </tr>
                         </table>
                    </asp:Panel>
                    <asp:Panel CssClass="popupMenu" ID="PopupMenu" runat="server">
                         <asp:LinkButton ID="LinkButton1" runat="server" CommandName="Edit" Text="Edit" />
                         <br />
                         <asp:LinkButton ID="LinkButton2" runat="server" CommandName="Delete" Text="Delete" />
                    </asp:Panel>
                    <ajaxToolkit:HoverMenuExtender runat="server" TargetControlID="ItemContainer" PopupControlID="popupMenu"
                         HoverCssClass="popupHover" PopupPosition="Left" OffsetX="0" OffsetY="0" PopDelay="50">
                    </ajaxToolkit:HoverMenuExtender>
               </ItemTemplate>
               <EditItemTemplate>
                    <table id="Table1" runat="server" visible="<%# Container.DataItemIndex == 0 %>">
                         <tr>
                              <th width="20%">
                                   <asp:LinkButton runat="server" CommandName="Sort" CommandArgument="programme_name">
                                        Programme Name
                                   </asp:LinkButton>
                              </th>
                              <th width="20%">
                                   <asp:LinkButton runat="server" CommandName="Sort" CommandArgument="Start">
                                        Start
                                   </asp:LinkButton>
                              </th>
                              <th width="20%">
                                   <asp:LinkButton runat="server" CommandName="Sort" CommandArgument="Finish">
                                        Finish
                                   </asp:LinkButton>
                              </th>
                              <th width="20%">
                                   <asp:LinkButton runat="server" CommandName="Sort" CommandArgument="Source">
                                        Source
                                   </asp:LinkButton>
                              </th>
                              <th width="20%">
                                   <asp:LinkButton runat="server" CommandName="Sort" CommandArgument="Destination">
                                        Destination
                                   </asp:LinkButton>
                              </th>
                              <th width="20%">
                                   <asp:LinkButton runat="server" CommandName="Sort" CommandArgument="Comment">
                                        Comment
                                   </asp:LinkButton>
                              </th>
                         </tr>
                    </table>
                    <asp:Panel runat="server" ID="ItemContainer">
                         <asp:HiddenField runat="server" ID="IdHiddenField" Value='<%# Bind("ID") %>' />
                         <table width="100%">
                              <tr>
                                   <td width="20%">
                                        <asp:TextBox ID="TextBox0" runat="server" Text='<%# Bind("programme_name") %>' />
                                   </td>
                                   <td width="20%">
                                        <asp:TextBox ID="TextBox2" CssClass="datePicker" runat="server" Text='<%# Bind("Start", "{0:dd/MM/yyyy}") %>' />
                                   </td>
                                   <td width="20%">
                                        <asp:TextBox ID="TextBox3" CssClass="datePicker" runat="server" Text='<%# Bind("Finish", "{0:dd/MM/yyyy}") %>' />
                                   </td>
                                   <td width="20%">
                                        <asp:TextBox ID="TextBox4" runat="server" Text='<%# Bind("Source") %>' />
                                   </td>
                                   <td width="20%">
                                        <asp:TextBox ID="TextBox5" runat="server" Text='<%# Bind("Destination") %>' />
                                   </td>
                                   <td width="20%">
                                        <asp:TextBox ID="TextBox6" runat="server" Text='<%# Bind("Comment") %>' />
                                   </td>
                              </tr>
                         </table>
                    </asp:Panel>
                    <asp:Panel CssClass="popupMenu" ID="PopupMenu" runat="server">
                         <asp:LinkButton ID="LinkButton1" runat="server" CommandName="Update" CausesValidation="true"
                              Text="Update" />
                         <br />
                         <asp:LinkButton ID="LinkButton2" runat="server" CommandName="Cancel" CausesValidation="false"
                              Text="Cancel" />
                    </asp:Panel>
                    <ajaxToolkit:HoverMenuExtender runat="server" TargetControlID="ItemContainer" PopupControlID="popupMenu"
                         HoverCssClass="popupHover" PopupPosition="Left" OffsetX="0" OffsetY="0" PopDelay="50">
                    </ajaxToolkit:HoverMenuExtender>
               </EditItemTemplate>
          </asp:TemplateField>
     </Columns>
</asp:GridView>
<asp:SqlDataSource ID="BookingsSQL" runat="server" ConnectionString="<%$ ConnectionStrings:BookingsConnectionString %>"
     OldValuesParameterFormatString="original_{0}" ConflictDetection="OverwriteChanges"
     SelectCommand="SELECT [ID], [programme name] AS programme_name, [Start], [Finish], [Source], [Destination], [Comment] FROM [Bookings]"
     DeleteCommand="DELETE FROM [Bookings] WHERE [programme name] = @ID" InsertCommand="INSERT INTO [Bookings] ([programme name], [Start], [Finish], [Source], [Destination], [Comment]) VALUES (@programme_name, @Start, @Finish, @Source, @Destination, @Comment)"
     UpdateCommand="UPDATE [Bookings] SET [programme name] = @programme_name, [Start] = @Start, [Finish] = @Finish, [Source] = @Source, [Destination] = @Destination, [Comment] = @Comment WHERE [ID] = @ID">
     <DeleteParameters>
          <asp:Parameter Name="ID" Type="Int32" />
     </DeleteParameters>
     <InsertParameters>
          <asp:Parameter Name="programme_name" Type="String" />
          <asp:Parameter Name="Start" Type="DateTime" />
          <asp:Parameter Name="Finish" Type="DateTime" />
          <asp:Parameter Name="Source" Type="String" />
          <asp:Parameter Name="Destination" Type="String" />
          <asp:Parameter Name="Comment" Type="String" />
     </InsertParameters>
     <UpdateParameters>
          <asp:Parameter Name="ID" Type="Int32" />
          <asp:Parameter Name="Start" Type="DateTime" />
          <asp:Parameter Name="Finish" Type="DateTime" />
          <asp:Parameter Name="Source" Type="String" />
          <asp:Parameter Name="Destination" Type="String" />
          <asp:Parameter Name="Comment" Type="String" />
          <asp:Parameter Name="programme_name" Type="String" />
     </UpdateParameters>
</asp:SqlDataSource>

【讨论】：

非常感谢尤里。这对我来说比我在网上看到的其他例子要清楚得多！。
我需要包含一个更新面板，以便其他查看者可以进行更改，但是当我包含更新时，我得到一个“ The TargetControlID of '' is not valid. ID 为 'ItemContainer' 的控件可以找不到”错误？但是每个控件都有一个 ID ，为什么我会收到这个错误？。
请澄清这句话：“我需要包含一个更新面板，以便其他查看者可以进行更改”。这是什么意思？如果没有代码，我猜您已将 UpdatePanel 添加到每个 ItemTemplate 中。如果这是真的，那么只需将 GridView 放入 UpdatePanel。
对不起，这就是我的意思。我将 GridView 放在更新面板中，但是我收到“找不到 ID 为 'ItemContainer' 的控件”！。我不明白为什么它会给出这个错误，因为每个控件都有一个 ID。

【解决方案2】：

感谢您提供了如此大的帮助...它对我有用我使用 SqlDataSource 而不是使用 objectDataSource... 这是我正在运行的代码，对我来说非常有用....

<asp:UpdatePanel ID="up1" runat="server">
    <ContentTemplate>

<asp:GridView ID="GridView2" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource1"
 ShowHeader="False" Width="100%" BackColor="Azure" GridLines="None" DataKeyNames="PageAddID">
 <Columns>
      <asp:TemplateField>
           <ItemTemplate>
                <table id="Table1" runat="server" visible="<%# Container.DataItemIndex == 0 %>">
                     <tr>
                          <th width="20%">
                               <asp:LinkButton ID="LinkButton1" runat="server" CommandName="Sort" CommandArgument="PageName">
                                    Page Name
                               </asp:LinkButton>
                          </th>
                          <th width="20%">
                               <asp:LinkButton ID="LinkButton2" runat="server" CommandName="Sort" CommandArgument="PageTitle">
                                    PageTitle
                               </asp:LinkButton>
                          </th>
                          <th width="20%">
                               <asp:LinkButton ID="LinkButton3" runat="server" CommandName="Sort" CommandArgument="Metakeyword">
                                    Metakeyword
                               </asp:LinkButton>
                          </th>
                          <th width="20%">
                               <asp:LinkButton ID="LinkButton4" runat="server" CommandName="Sort" CommandArgument="Description">
                                    Description
                               </asp:LinkButton>
                          </th>

                     </tr>
                </table>
                <asp:Panel runat="server" ID="ItemContainer">
                     <table width="100%">
                          <tr>
                               <td width="20%">
                                    <%# Eval("PageName") %>
                               </td>
                               <td width="20%">
                                    <%# Eval("PageTitle") %>
                               </td>
                               <td width="20%">
                                    <%# Eval("Metakeyword") %>
                               </td>
                               <td width="20%">
                                    <%# Eval("Description") %>
                               </td>

                          </tr>
                     </table>
                </asp:Panel>
                <asp:Panel CssClass="popupMenu" ID="PopupMenu" runat="server">
                     <asp:LinkButton ID="LinkButton5" runat="server" CommandName="Edit" Text="Edit" />
                     <br />
                     <asp:LinkButton ID="LinkButton6" runat="server" CommandName="Delete" Text="Delete" />
                </asp:Panel>
                <ajaxToolkit:HoverMenuExtender ID="HoverMenuExtender1" runat="server" TargetControlID="ItemContainer" PopupControlID="popupMenu"
                     HoverCssClass="popupHover" PopupPosition="Left" OffsetX="0" OffsetY="0" PopDelay="10">
                </ajaxToolkit:HoverMenuExtender>
           </ItemTemplate>
           <EditItemTemplate>
                <table id="Table1" runat="server" visible="<%# Container.DataItemIndex == 0 %>">
                       <tr>
                          <th width="20%">
                               <asp:LinkButton ID="LinkButton7" runat="server" CommandName="Sort" CommandArgument="PageName">
                                    Page Name
                               </asp:LinkButton>
                          </th>
                          <th width="20%">
                               <asp:LinkButton ID="LinkButton8" runat="server" CommandName="Sort" CommandArgument="PageTitle">
                                    PageTitle
                               </asp:LinkButton>
                          </th>
                          <th width="20%">
                               <asp:LinkButton ID="LinkButton9" runat="server" CommandName="Sort" CommandArgument="Metakeyword">
                                    Metakeyword
                               </asp:LinkButton>
                          </th>
                          <th width="20%">
                               <asp:LinkButton ID="LinkButton10" runat="server" CommandName="Sort" CommandArgument="Description">
                                    Description
                               </asp:LinkButton>
                          </th>

                     </tr>
                </table>
                <asp:Panel runat="server" ID="ItemContainer">
                     <asp:HiddenField runat="server" ID="IdHiddenField" Value='<%# Bind("PageAddID") %>' />
                     <table width="100%">
                          <tr>
                               <td width="20%">
                                    <asp:TextBox ID="TextBox0" runat="server" Text='<%# Bind("PageName") %>' />
                               </td>
                               <td width="20%">
                                    <asp:TextBox ID="TextBox2" CssClass="datePicker" runat="server" Text='<%# Bind("PageTitle") %>' />
                               </td>
                               <td width="20%">
                                    <asp:TextBox ID="TextBox3" CssClass="datePicker" runat="server" Text='<%# Bind("Metakeyword") %>' />
                               </td>
                               <td width="20%">
                                    <asp:TextBox ID="TextBox4" runat="server" Text='<%# Bind("Description") %>' />
                               </td>

                          </tr>
                     </table>
                </asp:Panel>
                <asp:Panel CssClass="popupMenu" ID="PopupMenu" runat="server">
                     <asp:LinkButton ID="LinkButton1" runat="server" CommandName="Update" CausesValidation="true"
                          Text="Update" />
                     <br />
                     <asp:LinkButton ID="LinkButton2" runat="server" CommandName="Cancel" CausesValidation="false"
                          Text="Cancel" />
                </asp:Panel>
                <ajaxToolkit:HoverMenuExtender ID="HoverMenuExtender2" runat="server" TargetControlID="ItemContainer" PopupControlID="popupMenu"
                     HoverCssClass="popupHover" PopupPosition="Left" OffsetX="0" OffsetY="0" PopDelay="10">
                </ajaxToolkit:HoverMenuExtender>
           </EditItemTemplate>
      </asp:TemplateField>
 </Columns>

" OldValuesParameterFormatString="original_{0}" ConflictDetection="OverwriteChanges" SelectCommand="SELECT * FROM [AddPages]" DeleteCommand="DELETE FROM [AddPages] WHERE [PageAddId] = @PageAddID"

 UpdateCommand="UPDATE [AddPages] SET [PageName] = @PageName, [PageTitle] = @PageTitle, [Metakeyword] = @Metakeyword, [Description] = @Description WHERE [PageAddID] = @PageAddID">
 <DeleteParameters>
      <asp:Parameter Name="PageAddID" Type="Int32" />
 </DeleteParameters>
 <InsertParameters>
      <asp:Parameter Name="PageName" Type="string" />
      <asp:Parameter Name="PageTitle" Type="string" />
      <asp:Parameter Name="Metakeyword" Type="string" />
      <asp:Parameter Name="Description" Type="string" />

 </InsertParameters>
 <UpdateParameters>
      <asp:Parameter Name="PageAddID" Type="Int32" />
        <asp:Parameter Name="PageName" Type="string" />
      <asp:Parameter Name="PageTitle" Type="string" />
      <asp:Parameter Name="Metakeyword" Type="string" />
      <asp:Parameter Name="Description" Type="string" />

 </UpdateParameters>

    </ContentTemplate>
</asp:UpdatePanel>

【讨论】：