How to truncate a file in c#?

c# .net file truncate
user186246 picture user186246 · Jun 30, 2011 · Viewed 25.2k times · Source

I am writing actions done by the program in C# into a file by using Trace.Writeln() function. But the file is becoming too large. How to truncate this file when it grows to 1MB? 

TextWriterTraceListener traceListener = new TextWriterTraceListener(File.AppendText("audit.txt"));
Trace.Listeners.Add(traceListener);
Trace.AutoFlush = true;

What should be added to the above block

Answer

sll picture sll · Jun 30, 2011

Try to play around with FileStream.SetLength

FileStream fileStream = new FileStream(...);
fileStream.SetLength(sizeInBytesNotChars);

Related questions

Easiest way to read from and write to files

There are a lot of different ways to read and write files (text files, not binary) in C#. I just need something that is easy and uses the least amount of code, because I am going to be working with …

Read More
Is there a way to check if a file is in use?

I'm writing a program in C# that needs to repeatedly access 1 image file. Most of the time it works, but if my computer's running fast, it will try to access the file before it's been saved back to the filesystem …

Read More
How do I get the directory from a file's full path?

What is the simplest way to get the directory that a file is in? I'm using this to set a working directory. string filename = @"C:\MyDirectory\MyFile.bat"; In this example, I should get "C:\MyDirectory".

Read More