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参考地址： http://bbs.csdn.net/topics/350051517
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用js实现
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="BorrowPage.aspx.cs" Inherits="Borrow_BorrowPage" %><!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>xxx上传</title> <!--获取文件上传地址--> <script type="text/javascript"> function checkFile() { //判断浏览器类型 var isIE = (document.all) ? true : false; var isIE7 = isIE && (navigator.userAgent.indexOf(‘MSIE 7.0‘) != -1); var isIE8 = isIE && (navigator.userAgent.indexOf(‘MSIE 8.0‘) != -1); var file=document.getElementById("UpLoadBorrow"); var path=file.value; if(isIE7 || isIE8) { file.select(); path=document.selection.createRange().text; document.selection.empty(); } document.getElementById("txtFilePath").value=path; } function checkNull() { var path=document.getElementById("txtFilePath").value; if(path=="" ||path==null) { alert(‘请选择要上传的文件!‘); return false; } return true; } </script> <base target="_self"/></head><body style="background-color:#0099FF;"> <form id="form1" runat="server"> <div style="margin:0px auto 0px auto;"> <asp:Image ID="Image1" runat="server" BorderStyle="Double" Width="750" ImageAlign="Middle" AlternateText="上传"/> <br /> 上传:<asp:FileUpload ID="UpLoadBorrow" runat="server" Height="22px" onchange="checkFile()" onkeydown="event.returnValue=false;" onpaste="return false" /> <input type="hidden" id="txtFilePath" runat="server" />//这里建立一个隐藏域 用来存地址 <asp:Button ID="btnUpload" runat="server" Text="上传" OnClientClick="return checkNull()" OnClick="btnUpLoad_Click" /> <asp:Button ID="btnBack" runat="server" Text="返回" onmousedown="window.close();" /></div> </form></body></html>string inputPath = txtFilePath.Value.Trim();
20160620001 FileUpload控件获取上传文件的路径
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原文地址：http://www.cnblogs.com/hutie1980/p/5599941.html
