如何递归列出所有文件在一个目录和子目录在c# ?
当前回答
列出要建模的文件和文件夹,自定义实现。 这将创建从起始目录开始的所有文件和文件夹的完整列表。
public class DirOrFileModel
{
#region Private Members
private string _name;
private string _location;
private EntryType _entryType;
#endregion
#region Bindings
public string Name
{
get { return _name; }
set
{
if (value == _name) return;
_name = value;
}
}
public string Location
{
get { return _location; }
set
{
if (value == _location) return;
_location = value;
}
}
public EntryType EntryType
{
get { return _entryType; }
set
{
if (value == _entryType) return;
_entryType = value;
}
}
public ObservableCollection<DirOrFileModel> Entries { get; set; }
#endregion
#region Constructor
public DirOrFileModel()
{
Entries = new ObservableCollection<DirOrFileModel>();
}
#endregion
}
public enum EntryType
{
Directory = 0,
File = 1
}
方法:
static DirOrFileModel DirSearch(DirOrFileModel startDir)
{
var currentDir = startDir;
try
{
foreach (string d in Directory.GetDirectories(currentDir.Location))
{
var newDir = new DirOrFileModel
{
EntryType = EntryType.Directory,
Location = d,
Name = Path.GetFileName(d)
};
currentDir.Entries.Add(newDir);
DirSearch(newDir);
}
foreach (string f in Directory.GetFiles(currentDir.Location))
{
var newFile = new DirOrFileModel
{
EntryType = EntryType.File,
Location = f,
Name = Path.GetFileNameWithoutExtension(f)
};
currentDir.Entries.Add(newFile);
}
}
catch (Exception excpt)
{
Console.WriteLine(excpt.Message);
}
return startDir;
}
用法:
var dir = new DirOrFileModel
{
Name = "C",
Location = @"C:\",
EntryType = EntryType.Directory
};
dir = DirSearch(dir);
其他回答
下面是B. Clay Shannon的非静态excel文件代码:
class ExcelSearcher
{
private List<string> _fileNames;
public ExcelSearcher(List<string> filenames)
{
_fileNames = filenames;
}
public List<string> GetExcelFiles(string dir, List<string> filenames = null)
{
string dirName = dir;
var dirNames = new List<string>();
if (filenames != null)
{
_fileNames.Concat(filenames);
}
try
{
foreach (string f in Directory.GetFiles(dirName))
{
if (f.ToLower().EndsWith(".xls") || f.ToLower().EndsWith(".xlsx"))
{
_fileNames.Add(f);
}
}
dirNames = Directory.GetDirectories(dirName).ToList();
foreach (string d in dirNames)
{
GetExcelFiles(d, _fileNames);
}
}
catch (Exception ex)
{
//Bam
}
return _fileNames;
}
简单的解决方案
string dir = @"D:\PATH";
DateTime from_date = DateTime.Now.Date;
DateTime to_date = DateTime.Now.Date.AddHours(23);
var files = Directory.EnumerateFiles(dir, "*.*",SearchOption.AllDirectories).Select(i=>new FileInfo(i))
.Where(file=>file.LastWriteTime >= from_date && file.LastWriteTime <= to_date);
foreach(var fl in files)
Console.WriteLine(fl.FullName);
一个简单干净的解决方案
/// <summary>
/// Scans a folder and all of its subfolders recursively, and updates the List of files
/// </summary>
/// <param name="sFullPath">Full path of the folder</param>
/// <param name="files">The list, where the output is expected</param>
internal static void EnumerateFiles(string sFullPath, List<FileInfo> fileInfoList)
{
try
{
DirectoryInfo di = new DirectoryInfo(sFullPath);
FileInfo[] files = di.GetFiles();
foreach (FileInfo file in files)
fileInfoList.Add(file);
//Scan recursively
DirectoryInfo[] dirs = di.GetDirectories();
if (dirs == null || dirs.Length < 1)
return;
foreach (DirectoryInfo dir in dirs)
EnumerateFiles(dir.FullName, fileInfoList);
}
catch (Exception ex)
{
Logger.Write("Exception in Helper.EnumerateFiles", ex);
}
}
private void GetFiles(DirectoryInfo dir, ref List<FileInfo> files)
{
try
{
files.AddRange(dir.GetFiles());
DirectoryInfo[] dirs = dir.GetDirectories();
foreach (var d in dirs)
{
GetFiles(d, ref files);
}
}
catch (Exception e)
{
}
}
一个非常简单的解决方案,返回一个文件列表。
public static List<string> AllFilesInFolder(string folder)
{
var result = new List<string>();
foreach (string f in Directory.GetFiles(folder))
{
result.Add(f);
}
foreach (string d in Directory.GetDirectories(folder))
{
result.AddRange(AllFilesInFolder(d));
}
return result;
}
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