带进度条的文件上传控件使用小结

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一、上传界面内容

选择文件：    上 传

选择文件：    上 传

说明:为了能正确显示，把原有asp.NET按钮控件换成了HTML的按钮控件

二、后台代码

       1.page_load部分内容

            private void Page_Load(object sender, System.EventArgs e)
             {
                      // 在此处放置用户代码以初始化页面
                      UpLoadHelper helper = new UpLoadHelper();   
                      helper.RegisterProgressBar(bt_save.UniqueID);
                      string path = Path.Combine(Server.MapPath("."),"loadfile");
                      if(!Directory.Exists(path))
                       {
                          Directory.CreateDirectory(path);
                      }
                       helper.UploadFolder = path;  
                      bind();
             }

     2.加入了自定义的显示上传文件夹的文件列表方法

           public void bind()
           {
                  string path = Path.Combine(Server.MapPath("."),"loadfile");
                  if(!Directory.Exists(path))
                   {
                         Directory.CreateDirectory(path);
                   }
                  Table1.Rows.Clear();
                  foreach(string filename in Directory.GetFiles(path))
                  {
                         TableRow r = new TableRow();
                         TableCell c = new TableCell();
                         c.Text = filename;
                         r.Cells.Add(c);
                        Table1.Rows.Add(r);
                }
          }

    3.批量上传文件的代码

     UpLoadHelper helper = new UpLoadHelper();
    
    string path = Path.Combine(Server.MapPath("."),"loadfile");
       
    foreach(UpLoadFile file in helper.GetUploadFileList("file1"))
    {
     file.SaveAs(Path.Combine(path,Path.GetFileName(file.FileName)));     
    }
    bind();

4.单个文件上传的代码

UpLoadHelper helper = new UpLoadHelper();
   
   string path = Path.Combine(Server.MapPath("."),"loadfile");
   UpLoadFile file = helper.GetUploadFile("s_file");
   file.SaveAs(Path.Combine(path,Path.GetFileName(file.FileName))); 
   bind(); 

三、说明