WPF & C# - 로그파일 만들기 ( LOG )

WPF & C# - 로그파일 만들기 ( LOG )

MainWindows.xaml.cs

private void btn_input_Click(object sender, RoutedEventArgs e)
{
    LogWrite("버튼클릭");
}
 
private void LogWrite(string str)
{
    string DirPath = Environment.CurrentDirectory + @"\Log";
    string FilePath = DirPath + "\\Log_" + DateTime.Today.ToString("yyyyMMdd") + ".log";
    string temp;
 
    DirectoryInfo di = new DirectoryInfo(DirPath);
    FileInfo fi = new FileInfo(FilePath);
 
    try
    {
        if (!di.Exists) Directory.CreateDirectory(DirPath);
        if (!fi.Exists)
        {
            using (StreamWriter sw = new StreamWriter(FilePath))
            {
                temp = string.Format("[{0}] {1}", DateTime.Now, str);
                sw.WriteLine(temp);
                sw.Close();
            }
        }
        else
        {
            using (StreamWriter sw = File.AppendText(FilePath))
            {
                temp = string.Format("[{0}] {1}", DateTime.Now, str);
                sw.WriteLine(temp);
                sw.Close();
            }
        }
    }
    catch (Exception e)
    {
    }
}

사용하기

// 프로그램 실행

LogWrite(AppDomain.CurrentDomain.FriendlyName + "실행");