c# - Asp.net 从后面的代码加载框架 src

Question

在单击按钮时从后面的代码设置我的框架 src 以在我的模态中使用时遇到问题。框架 src 正在获取值但不在模态中显示页面。模态代码

         <div class="modal fade " id="modal-info" role="dialog" data-keyboard="false"               style="border: none; height: 500px;" >
         <div class="modal-dialog col-md-push-1">

        <!-- Modal content-->
        <div class="modal-content" style="width: 700px;">
            <div class="modal-header">
                <button type="button" class="close" data-dismiss="modal">&times;</button>
                <h4 class="modal-title">Set Leave</h4>
            </div>
            <div class="modal-body">
                <iframe id="frm" runat="server" width="96.6%" style="border: none; height: 300px;"></iframe>
            </div>
            <div class="modal-footer">
                <button type="button" id="Button2" class="btn btn-primary" data-dismiss="modal" runat="server" onserverclick="close_ServerClick">OK</button>
            </div>
        </div>

    </div>
</div>

然后在点击按钮后的代码中

   frm.Src = "../Popups/staff_leave_calender.aspx";
   ScriptManager.RegisterStartupScript(Page, Page.GetType(), "", "$('#modal-info').modal();", true);

只有在页面加载时设置了框架 src 时它才有效

     protected void Page_Load(object sender, EventArgs e)
    {
        frameinfo.Src = "../Popups/staff_leave_calender.aspx";

    }

我需要做类似的事情

         Session["leaveid"] = StrID;
       frameinfo.Src = "../Popups/staff_leave_calender.aspx?lvv=" + StrID;

将在以模式加载的页面中使用 Str ID。还有什么其他选项或我还能做什么。

Answer 1

从 javascript 完整代码中使用它在您的 aspx 文件中，在顶部脚本中添加

  <script type="text/javascript">
    $(document).ready(function () {
        /* Get iframe src attribute value i.e. YouTube video url
        and store it in a variable */
        var url = "../Popups/staff_leave_calender.aspx?lvv="+"<%= Session["leaveid"].ToString() %>";

        /* Assign empty url value to the iframe src attribute when
        modal hide, which stop the video playing */
        document.getElementById("<%= btnAlelrt.ClientID %>").on('hide.bs.modal', function () {
            $("#frm").attr('src', '');
        });

        /* Assign the initially stored url back to the iframe src
        attribute when modal is displayed again */
        document.getElementById("<%= btnAlelrt.ClientID %>").on('show.bs.modal', function () {
            $("#frm").attr('src', url);
        });
    });
</script>

如果您的应用程序中不存在 session leaveid，则在代码隐藏文件中创建 session leaveid