獲取所有子文件夾及其大小

Question

我想寫一個方法。 （僅適用於不位置，名稱）

albumList.DataSource = getList(); //albumList is a ComboBox 

這List應該包含固定長度的所有subsfolder的名稱字符串：

public List<string> getList() 
{ 
    string[] str; 
    string no, name, size, price; 
    string albumFolder = @"F:\Audio"; 
    char a = ' '; 

    List<string> albums = new List<string>(); 

    albumFolder.Split(Path.DirectorySeparatorChar); 
    str = albumFolder.Split(Path.DirectorySeparatorChar); 

     for (int i = 0; i < str.Length; i++) 
     { 
      string n = str[i].ToString(); 
      n = n.Split(Path.DirectorySeparatorChar).ToString(); 
      no = (i > 8 ? " " : " ") + (i + 1) + "".PadRight(10, a); 
      name = n.PadRight((155 - n.Length), a); 
      size = "" + 512 + " MB".PadRight(20, a); // also help me finding their size 
      price = "" + 80 + "".PadRight(10, a); 
      albums.Add(no + name + size + price); 
     } 
    return albums; 
} 

此方法將返回一個List，這樣我可以做到這一點。但是，這樣做的圖片：提前更改List<String>

謝謝...

Answer 1

我覺得這是你可能是什麼尋找（雖然我同意有更好/更簡單的方法）：

public List<string> getList() 
     { 
      string no, name, size, price; 
      string albumFolder = @"F:\Audio"; 
      char a = ' '; 

      List<string> albums = new List<string>(); 

      string[] str = Directory.GetDirectories(albumFolder); 

      for (int i = 0; i < str.Length; i++) 
      { 
       DirectoryInfo info = new DirectoryInfo(str[i]); 
       no = (i > 8 ? " " : " ") + (i + 1) + "".PadRight(10, a); 
       name = info.Name.PadRight(155, a); 
       size = "" + 512 + " MB".PadRight(20, a); // also help me finding their size 
       price = "" + 80 + "".PadRight(10, a); 
       albums.Add(no + name + size + price); 
      } 
      return albums; 
     } 

Answer 2

到BindingList<String>

public BindingList<string> getList() 
{ 
    ... 
    return new BindingList<string>(albums); 
} 

Answer 3

你的代碼是非常複雜的，並不一定如此。請使用Directory和Path類，即Path.GetDirectoryName，不要手動解析。

下面是一些代碼走文件中預先NET4方式：

/// <summary> 
/// Walks all file names that match the pattern in a directory 
/// </summary> 
public static IEnumerable<string> AllFileNamesThatMatch(this string fromFolder, string pattern, bool recurse) 
{ 
    return Directory.GetFiles(fromFolder, 
        pattern, 
        recurse ? SearchOption.AllDirectories : 
           SearchOption.TopDirectoryOnly); 
} 

/// <summary> 
/// Walks all file names in a directory 
/// </summary> 
public static IEnumerable<string> AllFileNames(this string fromFolder, bool recurse) 
{ 
    return fromFolder.AllFileNamesThatMatch("*.*", recurse); 
} 

您可以通過使用金額<> LINQ走了IEnumerable得到大小

Answer 4

從您的代碼中刪除以下行，一切正常。

n = n.Split(Path.DirectorySeparatorChar).ToString();