ASP.NET多檔案上傳

來源:互聯網
上載者:User

自己編寫了一個多檔案所上傳的功能,與大家共用,不足之處望多多指教。
頁面部分:
<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" ValidateRequest="false" %>

<!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>Untitled Page</title>
    <script type="text/javascript">
    //用戶端添加附近
    function addFile(){
        var str='<input type="file" name="File"/><input type="button" value="Remove" onclick="remove(this)"/><br/>';
        document.all.files.insertAdjacentHTML("beforeEnd",str);
    }
    //用戶端刪除附近
    function remove(obj){
        obj.style.display="none";
        obj.nextSibling.style.display="none";
        obj.previousSibling.style.display="none";
        obj.previousSibling.disabled="disabled";
    }

    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
       
    <div id="files">
    <%--此處必須有一個asp.net的伺服器FileUpload控制項--%>
        多檔案上傳<br />
    <asp:FileUpload ID="FileUpload1" runat="server" /><input type="button" value="Remove" onclick="remove(this)"/><br />
    </div>
        <input id="Button1" type="button" value="Add" onclick="addFile()"/>
        <input id="Button2" type="button" value="Reset" onclick="this.form.reset()" />
        <asp:Button ID="Button3" runat="server" OnClick="Button3_Click" Text="Upload" CausesValidation="False" /></div>
    </form>
</body>
</html>
代碼部分:

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;
using System.IO;
using System.Net;
using System.Text;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
      
    }
    protected void Button3_Click(object sender, EventArgs e)
    {
        HttpFileCollection fileList = HttpContext.Current.Request.Files;
        //HttpFileCollection fileList = Request.Files;
        StringBuilder strb = new StringBuilder();
        for (int i = 0; i < fileList.Count; i++)
        {
            HttpPostedFile file = fileList[i];
            string fileName = Path.GetFileName(file.FileName);
            string fileExtension = Path.GetExtension(fileName);
           
            if (file.ContentLength > 0)
            {
                file.SaveAs(Server.MapPath("Upload/" + fileName));
                strb.Append(string.Format("檔案{0}上傳成功,副檔名為{1}\\n", fileName, fileExtension));
               
            }

        }  
         //提示上傳情況
         ClientScript.RegisterClientScriptBlock(typeof(Page), "", "alert('" + strb.ToString() + "')", true);
    }
}

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