我有一个带有三个面板的 tabcontainer,里面有 gridview。当我用户点击选项卡时,gridview 被加载。我想在加载gridview之前,应该显示一个img gif,并且应该在网格完全加载后隐藏。为此,我将代码编写为:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="example.aspx.cs"
Inherits="example" %>
<%@ Register Assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
Namespace="System.Web.UI" TagPrefix="asp" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<script type="text/javascript">
$(function() {
$("#mytab").mytab({
ajaxOptions: {
type: 'POST',
data: postData,
beforeSend: function() {
$('#loader').show();
},
complete: function() {
$("#loader").hide();
}
}
});
});
</script>
</head>
<body>
<form id="form2" runat="server">
<iframe id="iFrame2" runat="server" height="2px" width="2px"></iframe>
<asp:UpdatePanel ID="UpdatePanel2" runat="server">
<ContentTemplate>
<div>
<asp:ScriptManager ID="ScriptManager2" runat="server" EnablePartialRendering="true">
</asp:ScriptManager>
</div>
<asp:Panel ID="loader" runat="server" Wrap="true" CssClass="body" >
<table cellpadding="5" cellspacing="5" style="width:322px; height:245px; border:1">
<tr>
<td style="width:322px; height:245px; border:1">
<asp:Image ID="Image1" Width="322px" Height="245px" BorderWidth="0" runat="server" ImageUrl="Images/loading.gif" />
</td>
</tr>
</table>
</asp:Panel>
<cc1:TabContainer ID="mytab" runat="server" Width="100%"
Visible="true" AutoPostBack="true" >
<cc1:TabPanel runat="server" HeaderText="application" ID="TabPanel1"
>
<ContentTemplate>
<asp:Panel ID="Panel1" runat="server">
<table class="outline-tabs">
<tr class="pagination-row">
</tr>
<tr>
<td>
<asp:UpdatePanel ID="UpdatePanel3" runat="server">
<ContentTemplate>
<asp:GridView ID="GridView1" runat="server" CssClass="tblGrid" AllowSorting="True">
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
</td>
</tr>
</table>
</asp:Panel>
</ContentTemplate>
</cc1:TabPanel>
</ContentTemplate>
</asp:UpdatePanel>
</form>
</body>
</html>
但是当我运行应用程序时,我得到一个错误:
Microsoft JScript runtime error: Object expected
上面的代码有什么问题,任何文件都丢失了,因为我使用的是 jquery。