CODEWITHSUNDEEP
c#winformsnumericupdown
UglukFromIsengard
UglukFromIsengard

Reputation: 88

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

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.

Upvotes: 1

Views: 1400

Answers (2)

Idle_Mind
Idle_Mind

Reputation: 39122

Just override UpdateEditText and format your value...

enter image description here

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.

Upvotes: 6

Lothar
Lothar

Reputation: 23

As others have said, "0000" is a string rather than a number, so that won't really work for a NumericUpDown. The closest solution I can think of would be to create 4 separate NumericUpDowns that accept values 0 through 9 and convert that to your number. Then you could get your 0 0 0 0 to appear and people could move the individual digits up and down. Otherwise I think you would have to use a control that uses strings instead of numbers.

Upvotes: 0

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