.NETマルチファイルアップロードを実現
UpLoad.aspx
UpLoad.aspx.cs
<%@ 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> </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> </h3>
<P id="MyFile"><INPUT type="file" size="50" NAME="File"></P>
<P>
<input type="button" value=" (Add)" onclick="addFile()">
<input onclick="this.form.reset()" type="button" value=" (ReSet)">
<asp:Button Runat="server" Text=" " ID="UploadButton"></asp:Button>
</P>
<P>
<asp:Label id="strStatus" runat="server" Font-Names=" " Font-Bold="True" Font-Size="9pt"
Width="500px" BorderStyle="None" BorderColor="White"></asp:Label>
</P>
</div>
</form>
</body>
</HTML>
UpLoad.aspx.cs
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 。
///
/// </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)
{
///
if (this.IsPostBack) this.SaveImages();
}
private Boolean SaveImages()
{
///' File
HttpFileCollection files = HttpContext.Current.Request.Files;
/// '
System.Text.StringBuilder strMsg = new System.Text.StringBuilder();
strMsg.Append(" ：<hr color=red>");
try
{
for(int iFile = 0; iFile < files.Count; iFile++)
{
///'
HttpPostedFile postedFile = files[iFile];
string fileName, fileExtension;
fileName = System.IO.Path.GetFileName(postedFile.FileName);
if (fileName != "")
{
fileExtension = System.IO.Path.GetExtension(fileName);
strMsg.Append(" ：" + postedFile.ContentType.ToString() + "<br>");
strMsg.Append(" ：" + postedFile.FileName + "<br>");
strMsg.Append(" ：" + fileName + "<br>");
strMsg.Append(" ：" + fileExtension + "<br><hr>");
///'
/// ： 。
postedFile.SaveAs(System.Web.HttpContext.Current.Request.MapPath("images/") + fileName);
}
}
strStatus.Text = strMsg.ToString();
return true;
}
catch(System.Exception Ex)
{
strStatus.Text = Ex.Message;
return false;
}
}
#region Web
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: ASP.NET Web 。
//
InitializeComponent();
base.OnInit(e);
}
/// <summary>
/// -
/// 。
/// </summary>
private void InitializeComponent()
{
this.ID = "Upload";
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
}
}