asp.net 多文件上传的代码举例

发布时间:2020-04-29编辑:脚本学堂
本文介绍下,在asp.net编程中,实现多文件上传的一个例子, 有需要的朋友,不妨参考学习下。

1,前台页面部分
 

复制代码 代码示例:
<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!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 id="Head1" runat="server">
    <title>asp.net文件上传_www.jb200.com</title>
</head>
<body>
    <div>
         <HTML>
                    <HEAD>
                            <title>Upload</title>
                            <meta name="GENERATOR" content="Microsoft Visual Studio .NET 7.0">
                            <meta name="CODE_LANGUAGE" content="Visual Basic 7.0">
                            <meta name="vs_defaultClientScript" content="javascript">
                            <meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
                            <script language="javascript">
                                    function addFiles(oContainer)
                                    {
                                        var sLineHTML="<div><input type='file' name='files' style='width:228'><input type='button' onclick='javascript:delFileInput(this)' value='删除'></div>";
                                        oContainer.insertAdjacentHTML('beforeEnd',sLineHTML);
                                    }
                                    function delFileInput(oInputButton)
                                    {
                                        var divToDel=oInputButton.parentNode;
                                        divToDel.parentNode.removeChild(divToDel);
                                    }
                            </script>
                    </HEAD>
                    <body MS_POSITIONING="GridLayout">
                            <form id="Form2" method="post" runat="server" encType="multipart/form-data">
                                    <table align="center">
                                            <tr>
                                                    <td align="center"><h1>多附件上传 作者:Bt之家 cjlwxy</h1>
                                                    </td>
                                            </tr>
                                            <tr>
                                                    <td id="TD">
                                                            <INPUT style="WIDTH: 300px" type="file" name="Files">    <BUTTON style="WIDTH: 79px; HEIGHT: 20px" onclick="javascript:addFiles(TD);" type="button">继续添加</BUTTON>
                                                    </td>
                                            </tr>
                                            <tr>
                                                    <td>
                                                            <asp:Label ID="lblError" Runat="server"></asp:Label>
                                                    </td>
                                            </tr>
                                            <tr>
                                                    <td align="center">
                                                            <asp:Button ID="btnUpLoad" Runat="server" Text=" 上 传 " EnableViewState="False" CausesValidation="true" OnClick="btnUpLoad_Click"></asp:Button>
                                                    </td>
                                            </tr>
                                    </table>
                            </form>
                    </body>
            </HTML>  
    </div>
</body>
</html>

2,后台代码部分
 

复制代码 代码示例:

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class _Default : System.Web.UI.Page
{
    public const string StatusChangeFilePath = "StatusChangeFile/";  //附件保存地址
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void btnUpLoad_Click(object sender, EventArgs e)
    {
        string sFilesName = "";
        HttpPostedFile oPostedFile;
        int n = 0;
        n = Request.Files.Count;
        for (int i = 0; i < n; i++)
        {
            oPostedFile = Request.Files.Get(i);
            sFilesName = UpLoadMoreFile(oPostedFile, StatusChangeFilePath);
            lblError.Text = "上传成功";

        }
    }

    private string UpLoadMoreFile(HttpPostedFile Postfile, string Path)
    {
        string fileName = "";
        if (Postfile.FileName == "")
        {
            return "";
        }
        else
        {
            fileName = Postfile.FileName;
            fileName = fileName.Substring(fileName.LastIndexOf("//"), fileName.Length - fileName.LastIndexOf("//"));
            Postfile.SaveAs(Server.MapPath(Path + fileName));
            return "成功";
            //Postfile.cu
        }

    }
}

之前,我们介绍过一篇asp.net 多文件上传的例子,有需要的朋友,也可以参考下。