ASP.NET 中的更新面板内的手风琴面板内没有触发按钮

Question

我正在自定义一个网站，但是在更新面板中使用触发器时，点击事件没有触发。

<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional" ChildrenAsTriggers="True"

另见 Content Template

<ContentTemplate>
    <table width="100%">
        <tr>
            <td>
                <cc1:accordion id="Accordion1" runat="server" headercssclass="headeraccordian">
<panes>
          <cc1:accordionpane ID="AccordionPane1" runat="server">
      <header>
           <a href="#">
             <asp:Label ID="dailyreport" CssClass="lbl" runat="server" Text="Daily Report"></asp:Label></a>
     </header>
   <content>
          <div>
              <asp:TextBox ID="txtDate" runat="server" ReadOnly="True" Width="94px"></asp:TextBox>
              <asp:Button ID="btnCal" runat="server" Text="Select Date" OnClick="btnCal_Click" />
             &nbsp;
              <asp:Button ID="btnDownLoads" runat="server" Text="Download" OnClick="btnDownLoads_Click" />
            <asp:Calendar ID="cal" runat="server" OnSelectionChanged="cal_SelectionChanged" BackColor="White"
                 BorderColor="White" BorderWidth="1px" Font-Names="Verdana" Font-Size="9pt" ForeColor="Black"
                 Height="190px" NextPrevFormat="FullMonth" Width="350px">
                 <SelectedDayStyle BackColor="#333399" ForeColor="White" />
                 <TodayDayStyle BackColor="#CCCCCC" />
                <OtherMonthDayStyle ForeColor="#999999" />
                <NextPrevStyle Font-Bold="True" Font-Size="8pt" ForeColor="#333333" VerticalAlign="Bottom" />
                <DayHeaderStyle Font-Bold="True" Font-Size="8pt" />
                <TitleStyle BackColor="White" BorderColor="Black" BorderWidth="4px" Font-Bold="True"
                Font-Size="12pt" ForeColor="#333399" />
           </asp:Calendar>
        </div>
 </content>
        </cc1:accordionpane>
</panes>
</cc1:accordion>
               </td>
             </tr>
        </table> </ContentTemplate>

另见触发器

另请参阅按钮点击的代码隐藏：-

protected void btnDownLoads_Click(object sender, EventArgs e)
    {
        string wdr = "dR";
        string value = txtDate.Text;
        string str = wdr + value;
        string foldername = "Daily";
        string filename = str + ".pdf";
        var filePath = Path.Combine(@"D:\REPORTS\" + foldername + " ", filename);
        if (File.Exists(filePath))
        {
            Response.ContentType = @"application/pdf";
            Response.AddHeader(
            @"Content-Disposition",
            @"attachment; filename=" + Path.GetFileName(filePath));
            Response.WriteFile(filePath);
            Response.End();
        }
        else
        {
            Response.Write("<script>alert('No report uploaded for this date')</script>");
        }
    }

我只想在点击时触发点击事件，它是......

但是Response.End()下载文件时功能无法正常工作。

见page_load代码；-

try
    {
        this.SmartNavigation = true;
        if (this.IsPostBack == false)
        {
            //FillReport();
            txtDate.Text = DateTime.Now.ToString("dd-MM-yyyy");
            cal.Visible = false;
            currentdate.Text = DateTime.Now.Date.ToLongDateString();

            #region edited 
            #region download click

            checkdailydata();

            #endregion
            #endregion
        }
    }
    catch (Exception ext) // Edited Jimit included try catch
    {
        CreateLogFiles ls = new CreateLogFiles();
        ls.ErrorLog(Server.MapPath(@"~\ErrorLog\ErrorMsg"), ext.Message);
    }

Answer 1

很久以前我也遇到过同样的问题

尝试删除 .aspx 页面上的 Trigger，然后在 之外的 page_load 添加（注册控件）！page.isPostback{})

ScriptManager.GetCurrent(this.Page).RegisterPostBackControl(btnDownLoads);

看看能不能用

ASP.NET 中的更新面板内的手风琴面板内没有触发按钮

Button not firing inside Accordion Panes inside which is inside Update Panel in ASP.NET

c#

asp.net