C# WinForms numericUpDown control (removing the spin box)

Question

After a ton of googling, I couldn't come up with anything..

Is there any way to get a numericUpDown control that does not have the spin box?

I need a textbox that only accepts integers, and a numericUpDown has the perfect behavior that I am looking for. However, I need to hide the numeric spinbox for space constraints.

When I try to do something like numericUpDown.Controls[0].Hide() or numericUpDown.Controls.RemoveAt(0), the spinbox disappears but leaves an unusuable void where the spinbox used to be. Thus the numbers scroll at that point, meaning the space is wasted..

Is there any other solution to this?

Thanks..

Answer 1

You can inherit from NumericUpDown. The trick is to hide control when the control is created.

public class NumericUpDownWitoutButtons : NumericUpDown
{
    public NumericUpDownWitoutButtons()
    {
        Controls[0].Visible = false;
    }

    protected override void OnPaint(PaintEventArgs e)
    {
        e.Graphics.Clear(SystemColors.Window);
        base.OnPaint(e);
    }
}

If the place were buttons should be looks weird, override OnPaint too.

Also, you probably don't need NumericUpDown. Would it be enough to validate that only digits can by typed in? C# Numbers Only Textbox