多文件上传

page <% ... @ Page language="c#" Codebehind="UpLoad.aspx.cs" AutoEventWireup="false" Inherits="WebApplicationI.Upload"  %> <! DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"  > < HTML >      < HEAD >          < title > 多文件上传 </ 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 > 多文件上传 </ h3 >                  < P  id ="MyFile" >< INPUT  type ="file"  size ="50"  NAME ="File" ></ P >                  < P >                      < input  type ="button"  value ="增加(Add)"  onclick ="addFile()" >   < input  onclick ="this.form.reset()"  type ="button"  value ="重置(ReSet)" >                      < asp:Button  Runat ="server"  Text ="开始上传"  ID ="UploadButton" ></ asp:Button >                  </ P >                  < P >                      < asp:Label  id ="strStatus"  runat ="server"  Font-Names ="宋体"  Font-Bold ="True"  Font-Size ="9pt"  Width ="500px"                         BorderStyle ="None"  BorderColor ="White" ></ asp:Label >                  </ P >              </ div >          </ form >      </ body > </ HTML > Cs代码 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  WebApplicationI  ... {     /**//// <summary>      /// /// UpLoad 的摘要说明。     /// /// 实现多文件上传     /// /// </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)        ...{             /**//// 在此处放置用户代码以初始化页面             if (this.IsPostBack) this.SaveImages();                 }         private Boolean SaveImages()         ...{            /**////'遍历File表单元素             HttpFileCollection files = HttpContext.Current.Request.Files;             /**//// '状态信息             System.Text.StringBuilder strMsg = new System.Text.StringBuilder();            strMsg.Append("上传的文件分别是：<hr color=red>");             try ...{ for(int iFile = 0; iFile < files.Count; iFile++)                   ...{ /**////'检查文件扩展名字                       HttpPostedFile postedFile = files[iFile];                       string fileName, fileExtension;                      fileName = System.IO.Path.GetFileName(postedFile.FileName);                      if (fileName != "")                       ...{                          fileExtension = System.IO.Path.GetExtension(fileName);                           strMsg.Append("上传的文件类型：" + postedFile.ContentType.ToString() + "<br>");                           strMsg.Append("客户端文件地址：" + postedFile.FileName + "<br>");                          strMsg.Append("上传文件的文件名：" + fileName + "<br>");                           strMsg.Append("上传文件的扩展名：" + fileExtension + "<br><hr>");                           /**////'可根据扩展名字的不同保存到不同的文件夹                           //注意：可能要修改你的文件夹的匿名写入权限。                          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;             }         }         Web 窗体设计器生成的代码#region Web 窗体设计器生成的代码         override protected void OnInit(EventArgs e)         ...{             // // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。                        InitializeComponent();             base.OnInit(e);         }             /**//// <summary>             ///  /// 设计器支持所需的方法 - 不要使用代码编辑器修改             ///  /// 此方法的内容。            ///   /// </summary>                     private void InitializeComponent()                ...{             this.ID = "Upload";             this.Load += new System.EventHandler(this.Page_Load);         }                #endregion     } }