Numeric Up Down in c#

Question

I write a program that has a "numericUpDow". My numericUpDown has the next configuration:

numericUpDown.Maximun = 5;
numericUpDown.Minimun = 0;

I wish I could select numbers from 0 to 5 minus 2, Is it possible?

Answer 1

Add form level variable:

decimal oldValue = 0;

Bind to ValueChanged event:

numericUpDown.ValueChanged += numericUpDown_ValueChanged;

numericUpDown_ValueChanged code:

void numericUpDown_ValueChanged(object sender, EventArgs e)
{
    NumericUpDown ctrl = sender as NumericUpDown;
    if (ctrl.Value == 2)
    {
        // bad, very very bad
        ctrl.Value = oldValue > 2 ? 1 : 3;
    }
    oldValue = ctrl.Value;
}