Question

            for (int i = 1; i < 3; i++)
            {
                int randomSpeed = RandomNumber(2, 10);

                 "apa" + i.Left -= randomSpeed;
            }

Look at the "apa" + i.Left -= randomSpeed; this is wrong.

I have PictureBoxes that have names apa1, apa2 and apa3.

I would like to set the Left of the names apa+ i

How can i set the Left to the random speed in the loop for each of them?

Answer 1

As you have a finite number of controls, its probably easier to just do:

foreach (var control in new[] { apa1, apa2, apa3 }) 
{
    int randomSpeed = RandomNumber(2, 10);
    control.Left -= randomSpeed;
}