[C#] 파일 관련 메소드

[C#] 파일 관련 메소드

 

public static class FileUtilModel { public static void CreateDirectory(string path) { if (!Directory.Exists(path)) Directory.CreateDirectory(path); } public static void DeleteFile(string path) { if (File.Exists(path)) File.Delete(path); //파일 삭제 } public static void WriteFile(string fileFullPath,string data) { FileStream fs = new FileStream(fileFullPath, FileMode.Append); StreamWriter sw = new StreamWriter(fs); sw.WriteLine(data); sw.Close(); } public static bool DuplicateInFile(string fileFullPath, string data) { if (!System.IO.File.Exists(fileFullPath)) { return false; } string[] lineData = UtilModel.ReadAllLineFile(fileFullPath); foreach (var line in lineData) { if (line.IndexOf(data) >= 0) return true; } return false; } public static string[] ReadAllLineFile(string fileFullPath) { return File.ReadAllLines(fileFullPath); } public static string SelectFilePath(string initialDirectory) { OpenFileDialog dialog = new OpenFileDialog(); dialog.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*"; dialog.InitialDirectory = initialDirectory; dialog.Title = "Select a text file"; return (dialog.ShowDialog() == DialogResult.OK) ? dialog.FileName : null; } // 파일크기반환 // GetFileSizeWithPrefix(new System.IO.FileInfo("test.txt").Length); public static string GetFileSizeWithPrefix(double size) { string prefix = " byte"; if (size > 1024) {size /= 1024D; prefix = " KB"}; if (size > 1024) {size /= 1024D; prefix = " MB";} if (size > 1024) {size /= 1024D; prefix = " GB";} return Math.Round(size, 2).ToString() + prefix; } }