NumericUpDown snap to interval

[seb30]

It would be nice, if the value in a NumericUpDown snaps to the interval (manually entered and/or changed by the buttons).

• MahApps.Metro v1.5.0
• Windows OS 10
• Visual Studio 2017
• .NET Framework 4.6.2

[punker76]

@xxMUROxx WDYT?

[michaelmairegger]

@punker76

The idea is nice.

There are two concerns:

• This feature can only work if the Value is "adjusted" to the interval on LostFocus; otherwise the value is changed at any key stoke.
• The interval is 5 and the value entered is 4. To what value should 4 be "adjusted" 5 or 0? (I am no fan of introducing a SnapDirection property)

[seb30]

The interval is 5 and the value entered is 4. To what value should 4 be "adjusted" 5 or 0? (I am no fan of introducing a SnapDirection property)

In my opinion it should snap to 5 (or to the maximum). I've done the calculation in the past with Math.Round(value / interval) * interval.

[michaelmairegger]

@seb30 According to your code you suggest to round to the "nearest possible interval"?

[seb30]

Yes.

[michaelmairegger]

@punker76 I will implement a demo, then we can decide if this feature suits to the library.

[seb30]

Works great (for my needs, which I've tested)!