實現ASP.NET多文件上傳程序代碼

2024-07-10 12:39:54

字體：大中小

來源：轉載

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upload.aspx
代碼如下:
<%@ Page language="c#" Codebehind="UpLoad.aspx.cs" AutoEventWireup="false" Inherits="WebPortal.Upload" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>多文件上傳</title>
<script language="JavaScript">
function addFile()
{
var str = '<INPUT type="file" size="50" NAME="File">'
document.getElementById('MyFile').insertAdjacentHTML("beforeEnd",str)
}
</script>
</HEAD>
<body>
<form id="form1" method="post" runat="server" enctype="multipart/form-data">
<div align="center">
<h3>多文件上傳</h3>
<P id="MyFile"><INPUT type="file" size="50" NAME="File"></P>
<P>
<input type="button" value="增加(Add)" onclick="addFile()">
<input onclick="this.form.reset()" type="button" value="重置(ReSet)">
<asp:Button Runat="server" Text="開始上傳" ID="UploadButton"></asp:Button>
</P>
<P>
<asp:Label id="strStatus" runat="server" Font-Names="宋體" Font-Bold="True" Font-Size="9pt"
Width="500px" BorderStyle="None" BorderColor="White"></asp:Label>
</P>
</div>
</form>
</body>
</HTML>

upload.aspx.cs
代碼如下:
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
namespace WebPortal
{
/// <summary>
/// UpLoad 的摘要說明。
/// 實現多文件上傳
/// </summary>
public class Upload : System.Web.UI.Page
{
protected System.Web.UI.WebControls.Button UploadButton;
protected System.Web.UI.WebControls.Label strStatus;
private void Page_Load(object sender, System.EventArgs e)
{
/// 在此處放置用戶代碼以初始化頁面
if (this.IsPostBack) this.SaveImages();
}
private Boolean SaveImages()
{
///'遍歷File表單元素
HttpFileCollection files = HttpContext.Current.Request.Files;
/// '狀態信息
System.Text.StringBuilder strMsg = new System.Text.StringBuilder();
strMsg.Append("上傳的文件分別是：<hr color=red>");
try
{
for(int iFile = 0; iFile < files.Count; iFile++)
{
///'檢查文件擴展名字
HttpPostedFile postedFile = files[iFile];
string fileName, fileExtension;
fileName = System.IO.Path.GetFileName(postedFile.FileName);
if (fileName != "")
{
fileExtension = System.IO.Path.GetExtension(fileName);
strMsg.Append("上傳的文件類型：" + postedFile.ContentType.ToString() + "<br>");
strMsg.Append("客戶端文件地址：" + postedFile.FileName + "<br>");
strMsg.Append("上傳文件的文件名：" + fileName + "<br>");