FileUploadPanel.ascx

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<%@ Control Language="C#" AutoEventWireup="true" CodeFile="FileUploadPanel.ascx.cs"
    Inherits="FileUploadPanel" %>

<style type="text/css">


.redbag {
	font-size: 12px;
	font-weight: lighter;
	color: #C33;
	font-family: Arial, Helvetica, sans-serif;
}

</style>

<script type="text/javascript">
    //限制文件数
    var mflFileMaxCount = 5;
    var mflFileCount = 0;
    //限制文件类型
    var mflCouldUserTypes = "|.jpeg|.jpg|.gif|.png|.JPG|.JPEG|.GIF|.PNG|";
    
    function AddFile(obj) {
        var fileName = obj.value;
        if (mflFileCount >= mflFileMaxCount) {
            window.alert("信息提示：系统设置，最多只能同时上传[" + mflFileMaxCount + "]个文件.");
            return;
        }
        
        if ($.trim(fileName) == "") {
            //用户没有选择文件
            return;
        }
        
        var type = fileName.substring(fileName.lastIndexOf("."));
        type = type.toLowerCase();
        var sFileName = fileName.substring(fileName.lastIndexOf("\\"));
        var newFileLoadTmp = "<input type='file' name='mflFileUpload" + (mflFileCount + 1) + "' id='mflFileUpload" + (mflFileCount + 1) + "' onchange='AddFile(this)' class='mflFileUploadCss' />"
        var newLiFile = "<li><span class='FileNameStyle'>" + sFileName + "</span>&nbsp;<img src='image/ac_02.jpg' onclick='mflRemoveFile(this)' /></li>";
        
        if ($.trim(type) == "" || $.trim(sFileName) == "") {
            //用户没有选择文件
            return;
        }
        if (mflCouldUserTypes.indexOf("|" + type + "|") != -1) {
            $(obj).css("display","none");
            $(".mflLeft_FileUpload").append(newFileLoadTmp);
            $(".mflRightOlFiles").append(newLiFile);
            mflFileCount += 1;
            $(".mflFileCountMsg").html("已选文件数："+mflFileCount);
        }
        else {
            window.alert("信息提示：文件类型不正确。");
        }
    }

    function mflRemoveFile(obj) {
        if (confirm("信息提示：确定移除该文件？")) {
            var innerHtml = $(obj).parent().html();
            var itemIndex = 0;