files-and-folders.md

File Operations

Reading/Writing Text Files

System.IO.File.WriteAllText(saveAs, html);
string xml = System.IO.File.ReadAllText(pathLinescanXML);
string[] xmlLines = System.IO.File.ReadAllLines(pathLinescanXML);

Get File Size

sizeMB = new System.IO.FileInfo(path).Length/1e6;

Join (Combine) Dirname and Basename

string cellsFilePath = System.IO.Path.Combine(folder, cellsFileName);

Reading Binary Files

BinaryReader br = new BinaryReader(File.Open(abfFilePath, FileMode.Open));
br.BaseStream.Seek(0, SeekOrigin.Begin);
byte[] firstFew = br.ReadBytes(4);
string firstFewStr = System.Text.Encoding.Default.GetString(firstFew);

List Files or Folders

string[] pathsFiles = System.IO.Directory.GetFiles(pathFolder, "*.tif");
string[] pathsFolders = System.IO.Directory.GetDirectories(pathFolder);

List Directories Ordered by Creation Date

var di = new System.IO.DirectoryInfo(PathOutputFolder);
var folderNames = di.EnumerateDirectories()
                    .OrderBy(d => d.CreationTime)
                    .Select(d => d.Name)
                    .ToList();
folderNames.Reverse();
for (int i=0; i<folderNames.Count; i++)
    folderNames[i] = System.IO.Path.GetFileName(folderNames[i]);

Find files recursively

string[] files = Directory.GetFiles("./", "*.txt", SearchOption.AllDirectories);