C# 如何在Ajax ModalPopUp Extender中显示GridView中列出的项信息？

我是一名新的ASP.NET开发人员，我正在为公司的部门开发一个简单的内部网注册系统。可用事件将在GridView中列出，显示事件标题的第一列将作为链接按钮。我现在想要的是：

当用户单击其中一个事件标题时，将显示一个弹出窗口，其中显示GridView中已存在的事件信息，并带有注册按钮。我是AjaxToolKit ModalPopUp扩展器。我做了几乎所有的事情，但我不知道如何在ModalPopUp中显示该事件的信息

你能帮我一下吗？

我的代码隐藏（C#）：

我的ASP.NET代码：

<asp:GridView ID="ListOfAvailableEvents_GrivView" runat="server" AutoGenerateColumns="False"
    DataKeyNames="ID" CellPadding="4" DataSourceID="SqlDataSource1" ForeColor="#333333" GridLines="None"
    AllowPaging="True" PageSize="5">
    <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
    <RowStyle BackColor="#F7F6F3" ForeColor="#333333" CssClass="generaltext" />
    <Columns>
        <asp:TemplateField HeaderText="Title">
            <ItemTemplate>
                <asp:LinkButton ID="lnkTitle" runat="server" Text='<%# Eval("Title") %>' OnClick="lnkTitle_Click"></asp:LinkButton>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:BoundField DataField="Description" HeaderText="Description" SortExpression="Description" />
        <asp:BoundField DataField="Location" HeaderText="Location" SortExpression="Location" />
        <asp:BoundField DataField="StartDateTime" HeaderText="Start Date & Time" SortExpression="StartDateTime" />
        <asp:BoundField DataField="EndDateTime" HeaderText="End Date & Time" SortExpression="EndDateTime" />
    </Columns>
    <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
    <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
    <HeaderStyle Font-Bold="True" CssClass="complete" />
    <EditRowStyle BackColor="#999999" />
    <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
</asp:GridView>

<asp:Button ID="btnModalPopUp" runat="server" Style="display: none" />
<ajaxToolkit:ModalPopupExtender ID="modalPopupExtender1" runat="server" TargetControlID="btnModalPopUp"
    PopupControlID="pnlPopUp" BackgroundCssClass="popUpStyle" PopupDragHandleControlID="panelDragHandle"
    OkControlID="OKButton">
</ajaxToolkit:ModalPopupExtender>

<asp:HiddenField ID="HiddenField1" runat="server" />
<asp:Panel ID="pnlPopUp" runat="server" CssClass="popUpStyle">
    <asp:Button ID="confirmButton" runat="server" Text="Register" OnClick="btnSendConfirmationEmail_Click" />
    <asp:Button ID="OKButton" runat="server" Text="Cancel" />
</asp:Panel>

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:PM_RegistrationSysDBConnectionString %>"
    SelectCommand="SELECT     ID, Title, Description, Location, StartDateTime, EndDateTime
                    FROM         dbo.Events
                    WHERE     (IsActive = 1)
                    ORDER BY ID DESC">
</asp:SqlDataSource>

---

请注意，我不想在GridView中显示ID和其他信息这里有两个链接，显示了一个好的教程，我认为这将帮助您实现您想要的，而无需使用代码，只需使用客户端，这样您就可以避免在用户单击链接按钮时刷新页面

---

为什么要显示隐藏字段？我认为如果您从codebehind中填充基于所选行的信息的模式弹出扩展程序，会更简洁、更精确。谢谢您的帮助。我真的很感激。

<asp:GridView ID="ListOfAvailableEvents_GrivView" runat="server" AutoGenerateColumns="False"
    DataKeyNames="ID" CellPadding="4" DataSourceID="SqlDataSource1" ForeColor="#333333" GridLines="None"
    AllowPaging="True" PageSize="5">
    <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
    <RowStyle BackColor="#F7F6F3" ForeColor="#333333" CssClass="generaltext" />
    <Columns>
        <asp:TemplateField HeaderText="Title">
            <ItemTemplate>
                <asp:LinkButton ID="lnkTitle" runat="server" Text='<%# Eval("Title") %>' OnClick="lnkTitle_Click"></asp:LinkButton>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:BoundField DataField="Description" HeaderText="Description" SortExpression="Description" />
        <asp:BoundField DataField="Location" HeaderText="Location" SortExpression="Location" />
        <asp:BoundField DataField="StartDateTime" HeaderText="Start Date & Time" SortExpression="StartDateTime" />
        <asp:BoundField DataField="EndDateTime" HeaderText="End Date & Time" SortExpression="EndDateTime" />
    </Columns>
    <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
    <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
    <HeaderStyle Font-Bold="True" CssClass="complete" />
    <EditRowStyle BackColor="#999999" />
    <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
</asp:GridView>

<asp:Button ID="btnModalPopUp" runat="server" Style="display: none" />
<ajaxToolkit:ModalPopupExtender ID="modalPopupExtender1" runat="server" TargetControlID="btnModalPopUp"
    PopupControlID="pnlPopUp" BackgroundCssClass="popUpStyle" PopupDragHandleControlID="panelDragHandle"
    OkControlID="OKButton">
</ajaxToolkit:ModalPopupExtender>

<asp:HiddenField ID="HiddenField1" runat="server" />
<asp:Panel ID="pnlPopUp" runat="server" CssClass="popUpStyle">
    <asp:Button ID="confirmButton" runat="server" Text="Register" OnClick="btnSendConfirmationEmail_Click" />
    <asp:Button ID="OKButton" runat="server" Text="Cancel" />
</asp:Panel>

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:PM_RegistrationSysDBConnectionString %>"
    SelectCommand="SELECT     ID, Title, Description, Location, StartDateTime, EndDateTime
                    FROM         dbo.Events
                    WHERE     (IsActive = 1)
                    ORDER BY ID DESC">
</asp:SqlDataSource>

Events Table: ID, Title, Description, Location, StartDateTime, EndDateTime