相关疑难解决方法(0)

我用过这段代码:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Windows.Forms;
using System.IO;

namespace WindowsApplication1 {
  public partial class Form1 : Form {
    // Class to report progress
    private class UIProgress {
      public UIProgress(string name_, long bytes_, long maxbytes_) {
        name = name_; bytes = bytes_; maxbytes = maxbytes_;
      }
      public string name;
      public long bytes;
      public long maxbytes;
    }
    // Class to report exception {
    private class UIError {
      public UIError(Exception ex, string path_) {
        msg = ex.Message; path = path_; …