Set start time for Stopwatch program in C#

Question

I want to write a simple stopwatch program, I can make it work with the following code

    public Form1()
    {
        InitializeComponent();
    }
    Syst         


        

Answer 1

Stopwatch does not have any methods or properties that would allow you to set a custom start time.

You can subclass Stopwatch and override ElapsedMilliseconds and ElapsedTicks to adjust for your start time offset.

    public class MyStopwatch : Stopwatch
    {
        public TimeSpan StartOffset { get; private set; }

        public MyStopwatch(TimeSpan startOffset)
        {
            StartOffset = startOffset;
        }

        public new long ElapsedMilliseconds
        {
            get
            {
                return base.ElapsedMilliseconds + (long)StartOffset.TotalMilliseconds;
            }
        }

        public new long ElapsedTicks
        {
            get
            {
                return base.ElapsedTicks + StartOffset.Ticks;
            }
        }
    }