How To Display "0000" instead "0" in NumericUpDown in C#

Question

I want to take 4-digit value from Users using numericUpDown. So, I want to set up "0000" instead "0" to remember them to enter 4-digit.

I am programming WinForm With C#.

I am waiting your help.

Answer 1

Just override UpdateEditText and format your value...

public class MyNumericUpDown : NumericUpDown
{
    protected override void UpdateEditText()
    {
        this.Text = this.Value.ToString().PadLeft(4, '0');
    }
    
}

Rebuild and your new control should appear in the top of your toolbox.