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asp.net多文件上傳

編輯：.NET實例教程

<Html>
<head>
</head>
<body>
        <form   enctype= "multipart/form-data "   runat= "server ">
                <p>
                        Select   File1: <br   />
                        <input   id= "File1 "   type= "file "   runat= "Server "   />
                        <br   />
                        Select   File2: <br   />
                        <input   id= "File2 "   type= "file "   runat= "Server "   />
                        <br   />
                        Select   File3: <br   />
                        <input   id= "File3 "   type= "file "   runat= "Server "   />
                        <br   />
                        Select   File4: <br   />
                        <input   id= "File4 "   type= "file "   runat= "Server "   />
                </p>
                <p>
                        <input   id= "Submit1 "   type= "submit "   value= "Upload   Files "
                          runat= "Server "   onserverclick= "SubmitButton_Click "   />
                        <br   />
                </p>
                <span   id= "Span1 "   runat= "Server "> </span>
        </form>
</body>
</Html>


**/**/////   <summary>
    ///   WebClIEnt上傳文件至服務器
    ///   </summary>
    ///   <param   name= "fileNamePath "> 文件名，全路徑格式 </param>
    ///   <param   name= "uriString "> 服務器文件夾路徑 </param>
    private   void   UpLoadFile(string   fileNamePath,string   uriString)
    ...{
      string   fileName   =   fileNamePath.Substring(fileNamePath.LastIndexOf( "\ ")   +   1);
      NewFileName   =   DateTime.Now.ToString( "yyMMddhhmmss ")   +   DateTime.Now.Millisecond.ToString()   +   fileNamePath.Substring(fileNamePath.LastIndexOf( ". "));
      string   fileNameExt   =   fileName.Substring(fileName.LastIndexOf( ". ")   +   1);
      if(uriString.EndsWith( "/ ")   ==   false)   uriString   =   uriString   +   "/ ";

      uriString   =   uriString   +   NewFileName;
      /**//**//**////   創建WebClIEnt實例
      WebClient   myWebClient   =   new   WebClIEnt();
      myWebClIEnt.Credentials   =   CredentialCache.DefaultCredentials;

      //   要上傳的文件
      FileStream   fs   =   new   FileStream(fileName,   FileMode.Open,   FileAccess.Read);
      //FileStream   fs   =   OpenFile();
      BinaryReader   r   =   new   BinaryReader(fs);
      try
      ...{
        //使用UploadFile方法可以用下面的格式
        //myWebClIEnt.UploadFile(uriString, "PUT ",fileNamePath);
        byte[]   postArray   =   r.ReadBytes((int)fs.Length);
        Stream   postStream   =   myWebClIEnt.OpenWrite(uriString, "PUT ");
        if(postStream.CanWrite)
        ...{
          postStream.Write(postArray,0,postArray.Length);

   }
        else
        ...{
          AppHelper.MessageService.ShowError( "文件目前不可寫！ ");
        }
        postStream.Close();
      }
      catch
      ...{
        AppHelper.MessageService.ShowError( "文件上傳失敗，請稍候重試~ ");
      }
    }

循環調用UpLoadFile方法就可以了
for   (int   1=0;i   <   this.ListBox1.Items.Count;i++)
...{
    UpLoadFile(this.ListBox1.Items(i).Text,url);
}

<script   language= "Javascript ">
function   add()

...{
      var   myFiles=document.getElementById( "myFiles ");
      var   filediv=document.createElement( "div ");

      filediv.innerHtml= " <input   type= "file "   /> ";
      myFiles.appendChild(filediv);
      var   thisFile=filediv.childNodes[0];
      thisFile.click();

      if(checkRepeat(thisFile.value))
      ...{
            myFiles.removeChild(filediv);
    return;
      }

      var   mySelect=document.getElementById( "mySelect ");
      var   option=new   Option(thisFile.value,thisFile.value);
      mySelect.options.add(option);
      mySelect.options.selectedIndex=mySelect.options.length-1;
      mySelect.size++;
}

function   remove()
...{
      var   mySelect=document.getElementById( "mySelect ");
      var   selectedIndex=mySelect.selectedIndex;
    if(selectedIndex==-1)
      ...{
      alert( "請選擇要移除的文件! ");
return;
      }
      mySelect.options.remove(selectedIndex);
      if(selectedIndex==0)
                mySelect.options.selectedIndex=0;
      else
                mySelect.options.selectedIndex=selectedIndex-1;
      mySelect.size--;

      var   myFiles=document.getElementById( "myFiles ");
      myFiles.removeChild(myFiles.childNodes[selectedIndex]);
}

function   checkRepeat(filepath)
...{
var   myOptions=document.getElementById( "mySelect ").options;
for(i=0;i <myOptions.length;i++)
...{
if(myOptions[i].value==filepath)

...{
      alert( "該文件已存在列表當中，請不要重復選擇！ ");
      return   true;
}
}
return   false;
}
</script>