ConditionalPerformance.cs

public class ConditionalPerformance
{
  //If block
  public long WithOnlyIf(int myFlag)
  {
          Stopwatch myTimer = new Stopwatch();
          string someString = "";
          myTimer.Start();
          for (int i = 0; i < 1000000; i++)
          {
              string height = "80%";
              string width = "80%";
              if (myFlag == 1)
              {
                  height = "60%";
                  width = "60%";
              }
              someString = "Height: " + height + Environment.NewLine + "Width: " + width;
          }
          myTimer.Stop();
          File.WriteAllText("testif.txt", someString);
          return myTimer.ElapsedMilliseconds;
  }
  
  //If-else block
  public long WithIfAndElse(int myFlag)
    {
          Stopwatch myTimer = new Stopwatch();
          string someString = "";
          myTimer.Start();
          for (int i = 0; i < 1000000; i++)
          {
              string height;
              string width;
              if (myFlag == 1)
              {
                  height = "60%";
                  width = "60%";
              }
              else
              {
                  height = "80%";
                  width = "80%";
              }
              someString = "Height: " + height + Environment.NewLine + "Width: " + width;
          }
          myTimer.Stop();
          File.WriteAllText("testifelse.txt", someString);
          return myTimer.ElapsedMilliseconds;
      } 
}