Calculate execution time for a method

When you do performance optimization or something similar you will need to determine the execution time for a particular method call or a piece of code. Here is some code that you can use in those scenarios. Either StopWatch or DateTime can be used to do this.

Using System.Diagnostics.Stopwatch

Stopwatch stopWatch = new Stopwatch();
stopWatch.Start();

// Your code, it could be in-line code, a web service call or whatever code you want to analyse, goes here

stopWatch.Stop();

// Get the elapsed time as a TimeSpan value.
TimeSpan ts = stopWatch.Elapsed;

// Format and display the TimeSpan value.
string elapsedTime = String.Format("{0:00}:{1:00}:{2:00}.{3:00}",
ts.Hours, ts.Minutes, ts.Seconds,
ts.Milliseconds / 10);

Console.WriteLine("Time taken : " + elapsedTime);

// Or you can just call ToString() on TimeSpan var "ts"

Console.WriteLine("RunTime " + ts.ToString());

Using DateTime

DateTime start = DateTime.Now;

// Your code, it could be in-line code, a web service call or whatever code you want to analyse, goes here

DateTime end = DateTime.Now;

TimeSpan ts = end - start;

Console.WriteLine("Time taken : " + ts.ToString());