动态添加上传文件

<% @ Page language="c#" Codebehind="WebForm1.aspx.cs" AutoEventWireup="false" Inherits="ZKSTAT.WebForm1"  %>
<! DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"  >
< HTML >
     < HEAD >
         < title > WebForm1 </ title >
         < meta  name ="GENERATOR"  Content ="Microsoft Visual Studio .NET 7.1" >
         < meta  name ="CODE_LANGUAGE"  Content ="C#" >
         < meta  name ="vs_defaultClientScript"  content ="JavaScript" >
         < meta  name ="vs_targetSchema"  content ="http://schemas.microsoft.com/intellisense/ie5" >
         < script >
        function mCreateFile(obj){
            var eF;
            var mName;
            mFileName.innerHTML="";
            if (obj.id=="File") {
                for (i=0;i<mFile.children.length-1;i++)
                {
                    if (mFile.children[i].value=="") {
                        mFile.removeChild(mFile.children[i])
                    }
                    else
                    {
                        mName=mFile.children[i].value.split("\\")
                        mFileName.innerHTML+="<div id=NameDetail title='"+mName[mName.length-1]+"'>"+mName[mName.length-1]+"</div>"
                    }
                }
                mstatus.innerHTML="总共有 <b>"+(mFile.children.length-1)+"</b> 个文件等待上传"
            }
         
            if (obj.id=="File_New") {
                eF=document.createElement('<input type="file" name="File" size="23" id=File_New onpropertychange="mCreateFile(this)">')
                mFile.appendChild(eF)
                obj.id="File"
            }
        }
         </ script >
         < style >  table{}{ FILTER: progid:DXImageTransform.Microsoft.Shadow(direction=135,color=#999999,strength=3); }
    input{}{ border:1px soild #000000; font-family:Verdana,Arial,宋体; font-size:12px; padding:2px; }
    #mTD{}{ LINE-HEIGHT: 24px; }
    #mFile{}{ width:203px; float:left; | #mFileName{ float:right; width:182px; }
    #NameDetail{}{ overflow:hidden; width:176px; color:#000000; font-family:Verdana,Arial,宋体; font-size:12px; cursor:default; height:22px; }
    #mstatus{}{ font-size:12px; color:#ff0000; }
         </ style >
     </ HEAD >
     < body >
         < form  name ="frm"  method ="post" >
             < div  align ="center" >
                 < table  border ="1"  width ="420"  style ="BORDER-COLLAPSE: collapse"  bordercolor ="#0066cc"  cellpadding ="4"
                    bgcolor ="#d0f0ff" >
                     < tr >
                         < td  bgcolor ="#3399ff"  height ="26"  align ="center" >< font  color ="#ffffff"  size ="3" >< b > 添加附件 </ b ></ font ></ td >
                     </ tr >
                     < tr >
                         < td  id ="mTD" >
                             < div  id ="mFile" >< input  type ="file"  name ="File"  size ="23"  id ="File_New"  onpropertychange ="mCreateFile(this)" ></ div >
                             < div  id ="mFileName" ></ div >
                             < div  id ="mstatus" > 总共有  < b > 0 </ b >  个文件等待上传 </ div >
                         </ td >
                     </ tr >
                 </ table >
             </ div >
         </ form >
     </ body >
</ HTML >