Silverlight 上传

点击文件 

添加多选属性

绑定 OpenFileDialog窗口关闭事件

激活浏览绑定文件 添加到队列

　　　　　/// <summary>
        /// 选择文件对话框事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void SelectFilesButton_Click(object sender, RoutedEventArgs e)
        {

            OpenFileDialog OFdialog = new OpenFileDialog();
            ///对话框添加多选属性
            OFdialog.Multiselect = true;
            try
            {
                ///判断浏览文件格式
                if (!string.IsNullOrEmpty(_fileFilter))
                    OFdialog.Filter = _fileFilter;
            }
            catch (ArgumentException ex)
            {
                ///User supplied a wrong configuration file
                throw new Exception("Wrong file filter configuration.", ex);
            }

            if (OFdialog.ShowDialog() == true)
            {

                foreach (FileInfo file in OFdialog.Files)
                {
                    UserFile userFile = new UserFile();
                    userFile.FileName = file.Name;
                    userFile.FileStream = file.OpenRead();
                    if (userFile.FileStream.Length <= _maxFileSize)
                    {
                        ///向文件列表中添加文件信息
                        _files.Add(userFile);
                    }
                    else
                    {
                        MessageBoxControl.Message = "Maximum file size is: " + (_maxFileSize / 1024).ToString() + "KB.";
                        MessageBoxControl.Visibility = Visibility.Visible;
                    }
                }
            }
        }

　　_files.Add(userFile); 是一个文件集合类里面的添加方法

private FileCollection _files;