Jquery实现按钮点击遮罩加载，处理完后恢复_jq遮罩层中转圈圈-优快云博客

本文链接：https://blog.youkuaiyun.com/smartsmile2012/article/details/43530295

这是一个使用jQuery创建的页面加载效果示例。当点击按钮时，会显示一个遮罩层和加载提示，模拟后台处理任务。后台处理完成后，通过JavaScript移除遮罩层和加载提示，实现加载效果的恢复。

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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="EasyUiLoad.aspx.cs" Inherits="EasyUiLoad" %>

<!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>EasyUI加载效果</title>
    <style type="text/css">
    body{font-size:12px}
    .datagrid-mask{position:absolute;left:0;top:0;width:100%;height:100%;opacity:.5;filter:alpha(opacity=30);background-color:#e0ecff;display:none}
    .datagrid-mask-msg{position:absolute;top:50%;margin-top:-20px;padding:10px 15px 10px 15px;width:auto;height:16px;border-width:2px;border-color:#68a5ff;border-style:solid;display:none}
    .img1{vertical-align:middle;}
    </style>
    <script src="JS/jquery-1.9.1.js" type="text/javascript"></script>
    <script type="text/javascript">
        //load
        function EasyUILoad() {
            $("<div class=\"datagrid-mask\"></div>").css({ display: "block", width: "100%", height: "auto !important" }).appendTo("body");
            $("<div class=\"datagrid-mask-msg\"></div>").html("<img src='images/loading.gif' class='img1' />  正在运行，请稍候。。。").appendTo("body").css({ display: "block", left: ($(document.body).outerWidth(true) - 190) / 2, top: ($(window).height() - 45) / 2 });
        }

        //display Load  
        function dispalyEasyUILoad() {
            $(".datagrid-mask").remove();
            $(".datagrid-mask-msg").remove();
        }      
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:Button ID="Button1" runat="server" Text="加载效果" OnClientClick="javascript:EasyUILoad();" onclick="Button1_Click" />
    </div>
    </form>
</body>
</html>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class EasyUiLoad : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        System.Threading.Thread.Sleep(5000);
        //处理逻辑...
        //完成处理后恢复
        ClientScript.RegisterStartupScript(this.GetType(), "closeLoad", "dispalyEasyUILoad();", true);
    }
}