winform复制文件到指定目录

执行步骤

1. 打开图片选择对话框

//打开文件对话框并获取选择的文件

private List<string> OpenImagesDialog(bool isMulti = true)

{

    var openFileDialog = new OpenFileDialog();

    const string imgExts = "图像文件 (*.bmp;*.ico;*.gif;*.jpeg;*.jpg;*.png)|*.bmp;*.ico;*.gif;*.jpeg;*.jpg;*.png";

    openFileDialog.Filter = imgExts;//可选择的文件格式 (|之前为显示，之后为控制后缀显示)

    openFileDialog.Multiselect = isMulti;//多选设置

    openFileDialog.RestoreDirectory = true;

    openFileDialog.FilterIndex = 1;

    var result = new List<string>();

    if (openFileDialog.ShowDialog() == DialogResult.OK)

    {

        result.AddRange(openFileDialog.FileNames);

    }

    return result;

}

2.复制文件到指定目录

  /// <summary>

  /// 复制文件到指定目录并重命名

  /// </summary>

  /// <param name="sourcePaths">要复制的文件路径集合</param>

  /// <param name="targetDir">目标目录</param>

  /// <returns>Item1:对应路径，Item2:失败文件路径</returns>

  public static Tuple<Dictionary<string, string>, List<string>> CopyFileToDir(List<string> sourcePaths, string targetDir)

  {

      if (!Directory.Exists(targetDir))

      {

          Directory.CreateDirectory(targetDir);

      }

      var errorFiles = new List<string>();

      var saveDirs = new Dictionary<string, string>();

      sourcePaths.ForEach(item =>

      {

          //路径不存在或者路径已存在则失败

          if (!File.Exists(item) || saveDirs.ContainsKey(item))

          {

              errorFiles.Add(item);

          }

          else

          {

              var saveName = Guid.NewGuid() + Path.GetExtension(item);

              var savePath = Path.Combine(targetDir, saveName);

              File.Copy(item, savePath);

              saveDirs.Add(item, savePath);

          }

      });

      var result = new Tuple<Dictionary<string, string>, List<string>>(saveDirs, errorFiles);

      return result;

  }

调用示例 ( AppendLogMsg 为追加日志方法)

  var selectImgs = OpenImagesDialog(true);//打开文件对话框并获取选择的所有文件

  var result = FileHelper.CopyFileToDir(selectImgs, txtSaveDir.Text);

  //result.Item1 [{源文件路径:目标路径}]

  //result.Item2 [失败路径1,失败路径2]