mymultifileupload.aspx.cs

ASP C#代码实例 适合初学人士学习使用

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;
using System.Text;
using System.IO;

namespace Example_11_3
{
	/// <summary>
	/// Summary description for MyMultiFileUpload.
	/// </summary>
	public class MyMultiFileUpload : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label MyTitle;
		protected System.Web.UI.WebControls.Button Upload;
		protected System.Web.UI.WebControls.Label strStatus;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			MyTitle.Text = "<h3>多个文件同时上传</h3>";
			Upload.Text = "开始上传";
		}

		private void MultiFileUpload()
		{
			///定义上载文件的列表
			HttpFileCollection fileList = HttpContext.Current.Request.Files;
			///存放上载文件的操作消息
			StringBuilder uploadMessage = new StringBuilder("当前上传的文件分别是：<hr color=red>");
			int fileIndex = 0;
			
			try
			{
				///上载文件列表中的每一个文件
				for(fileIndex = 0; fileIndex < fileList.Count; fileIndex++)
				{
					///获取当前上载的文件
					HttpPostedFile postedFile = fileList[fileIndex];
					String fileName;
					String fileExtension;

					///获取上载文件的文件名称
					fileName = Path.GetFileName(postedFile.FileName);
					if(fileName != null)
					{
						///获取上载文件的扩展名称
						fileExtension = Path.GetExtension(fileName);
						uploadMessage.Append("上传的文件类型：" + postedFile.ContentType.ToString() + "<br>");
						uploadMessage.Append("客户端文件地址：" + postedFile.FileName + "<br>");
						uploadMessage.Append("上传文件的文件名：" + fileName + "<br>");
						uploadMessage.Append("上传文件的扩展名：" + fileExtension + "<br><hr>");

						///上载文件
						postedFile.SaveAs(MapPath("Files/") + fileName);
					}
				}

				///显示上载文件的操作成功消息
				strStatus.Text = uploadMessage.ToString();

			}
			catch(Exception ex)
			{
				///显示上载文件的操作失败消息
				strStatus.Text = ex.Message;
			}
		}

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.Upload.Click += new System.EventHandler(this.Upload_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void Upload_Click(object sender, System.EventArgs e)
		{
			///上载文件
			MultiFileUpload();
		}
	}
}