当前文件： 51aspxUploads/Default.aspx.cs[3K，2009-6-12 11:31:08]，打开代码结构图

		            
  1using System;
  2using System.Data;
  3using System.Configuration;
  4using System.Collections;
  5using System.Data;
  6using System.Drawing;
  7using System.Web;
  8using System.Web.Security;
  9using System.Web.UI;
 10using System.Web.UI.WebControls;
 11using System.Web.UI.WebControls.WebParts;
 12using System.Web.UI.HtmlControls;
 13
 14namespace _1aspxUploads
 15...{
 16    //51aspx.com多文件上传示例
 17    public partial class _Default : System.Web.UI.Page
 18    ...{
 19        static public ArrayList hif = new ArrayList(); // 保存文件列表
 20        public int filesUploaded = 0; // 上传文件的数量
 21
 22        protected void Page_Load(object sender, EventArgs e)
 23        ...{
 24
 25        }
 26       /**//// <summary>
 27        /// 将要上传的文件添加到listbox中
 28       /// </summary>
 29       /// <param name="sender"></param>
 30       /// <param name="e"></param>
 31
 32        protected void AddFile_Click(object sender, EventArgs e)
 33        ...{
 34            if (Page.IsPostBack == true)
 35            ...{
 36                hif.Add(FindFile);
 37                FileList.Items.Add(FindFile.PostedFile.FileName);
 38            }
 39            else
 40            ...{ }
 41
 42        }
 43
 44        /**//// <summary>
 45        /// 从listbox中删除指定的文件
 46        /// </summary>
 47        /// <param name="sender"></param>
 48        /// <param name="e"></param>
 49        protected void RemvFile_Click(object sender, EventArgs e)
 50        ...{
 51            if (FileList.SelectedIndex == -1)
 52            ...{
 53                TipInfo.Text = "错误 - 必须指定要删除的文件.";
 54                return;
 55            }
 56            else if (FileList.Items.Count != 0)
 57            ...{
 58                hif.RemoveAt(FileList.SelectedIndex);
 59                FileList.Items.Remove(FileList.SelectedItem.Text);
 60                TipInfo.Text = "";
 61            }           
 62
 63        }
 64
 65          /**//// <summary>
 66  /// 循环上传listbox中的文件到指定的文件夹下
 67  /// </summary>
 68  /// <param name="sender"></param>
 69  /// <param name="e"></param>
 70        public void Upload_ServerClick(object sender, System.EventArgs e)
 71        ...{
 72            string baseLocation = Server.MapPath("UploadFiles/"); // 上传路径   
 73            string status = "";  // 上传成功后显示的文件列表         
 74
 75            if ((FileList.Items.Count == 0) && (filesUploaded == 0))
 76            ...{
 77                TipInfo.Text = "错误 - 必须指定要上传的文件.";
 78                return;
 79            }
 80            else
 81            ...{
 82                foreach (System.Web.UI.HtmlControls.HtmlInputFile HIF in hif)
 83                ...{
 84                    try
 85                    ...{
 86                        string fn = System.IO.Path.GetFileName(HIF.PostedFile.FileName);
 87                        HIF.PostedFile.SaveAs(baseLocation + fn);
 88                        filesUploaded++;
 89                        status += fn + "<br>";
 90                    }
 91                    catch (Exception err)
 92                    ...{
 93                        TipInfo.Text = "上传错误 " + baseLocation
 94                         + "<br>" + err.ToString();
 95                    }
 96                }
 97
 98                if (filesUploaded == hif.Count)
 99                ...{
100                    TipInfo.Text = "共上传了 " + filesUploaded + " 个文件。 <br>" + status;
101                }
102                hif.Clear();
103                FileList.Items.Clear();
104            }
105
106        }
107    }
108}
109