任何人都可以帮助如何显示加载数据时加载器图像?我做了一个样本,这不是一个完美的one.Please建议我最好的方式。我有问题,我们可以使用jQuery或JavaScript?我点击数据必须加载到GV的加载,在此过程中,预加载器必须在GMAIL中可见。 如何在将数据加载到GridView时显示像gmail中的Loader图像?
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Loader Image While Loading Data in GV.aspx.cs"
Inherits="Loader_Image_While_Loading_Data_in_GV" %>
<!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 runat="server">
<title>Loader Image While Loading Data in GV</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<table>
<tr>
<td>
<asp:Image ID="load_img" runat="server" Height="70px" Width="70px" ImageUrl="~/Images/ajax-loader_green.gif"
Visible="false" />
</td>
</tr>
<tr>
<td>
<asp:Button ID="btnload" runat="server" Text="Load" OnClick="btnload_Click" />
</td>
</tr>
<tr>
<td>
<asp:GridView ID="gv1" runat="server" BackColor="LightGoldenrodYellow" BorderColor="Tan"
BorderWidth="1px" CellPadding="2" ForeColor="Black" GridLines="None">
<AlternatingRowStyle BackColor="PaleGoldenrod" />
<FooterStyle BackColor="Tan" />
<HeaderStyle BackColor="Tan" Font-Bold="True" />
<PagerStyle BackColor="PaleGoldenrod" ForeColor="DarkSlateBlue" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="DarkSlateBlue" ForeColor="GhostWhite" />
<SortedAscendingCellStyle BackColor="#FAFAE7" />
<SortedAscendingHeaderStyle BackColor="#DAC09E" />
<SortedDescendingCellStyle BackColor="#E1DB9C" />
<SortedDescendingHeaderStyle BackColor="#C2A47B" />
</asp:GridView>
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
后面的代码我写这样的
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using AdventureWorksModel;
public partial class Loader_Image_While_Loading_Data_in_GV : System.Web.UI.Page
{
AdventureWorksEntities awe = new AdventureWorksEntities();
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnload_Click(object sender, EventArgs e)
{
load_img.Visible = true;
gv1.DataSource = awe.CountryRegionCurrencies.ToList();
gv1.DataBind();
load_img.Visible = false;
}
}
但我点击下一次自动从Cache.Can获取值,我们使用javas做到这一点cript或jquery? – 2011-02-01 04:21:06