DoubleUpDown increment by one with Page Up and Down

Question

I would like to extend a DoubleUpDown from the Xceed - Toolkits, so that it works with PageUp and PageDown keys. The usual increment behaviour should be incrementing by 0.1, but if I use the PgUP or PgDn Keys the number should be incremented by 1.

Any ideas?

Thanks Steve

Answer 1

You could use an KeyBinding for this.

Assuming value of the DoubleUpDown is stored in the Value property because I don't have the xceed toolkit.

<xctk:DoubleUpDown Value="{Binding MyValue}">
    <xctk:DoubleUpDown.InputBindings>
        <KeyBinding Key="PageUp"
                    Command="{Binding IncrementCommand}"/>
    </xctk:DoubleUpDown.InputBindings>
</xctk:DoubleUpDown>

In your viewmodel you bind the value to MyValue and in the IncrementCommand you increment this value.