Write to Log Files

if you want to write some success or failed event to log file, then this is the code

first u need to using this namespace

C#

using System.IO;

FileStream file;

if (File.Exists("FILE_NAME_HERE"))
{
file = new FileStream(
"FILE_NAME_HERE",
FileMode.Append,
FileAccess.Write);

}
else
{
file = new FileStream(
"FILE_NAME_HERE",
FileMode.Create,
FileAccess.Write);

}

// Create a new stream to write to the file
StreamWriter sw = new StreamWriter(file);

// Write a string to the file
sw.WriteLine("module: some module have an error at " + System.DateTime.Now.ToString());

// Close StreamWriter
sw.Close();

// Close file
file.Close();