Keep in mind that this is a guess, but I would say that the easiest way to do this might be applying a
RotateTransform to the
Image's
RenderTransform property.
RenderTransform is a
DependencyProperty so you should be able to bind it to the
Value property of the
NumericUpDown. Yet, you are going to need an
IValueConverter that transforms the value from the
NumericUpDown into a
RotateTransform. The code for the
IValueConverter will look something like this:
public class RotationsTransformConverter
: IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
double angle;
try
{
angle = (double) value;
}
catch
{
angle = 0.0;
}
RotateTransform transformation = new RotateTransform(angle);
return transformation;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
Once you have your converter, you are going to have to instantiate it somewhere. I would advise setting it as a resource.
<local:RotationsTransformConverter x:key="MyConverter"/>
Once the converter is up and ready to go, you create a binding from the
Image's
RenderTransform property to the
NumericUpDown's
Value property. In the
Binding's
Converter property, you will reference the converter as a
StaticResource. That binding will look something like this:
<Image RenderTransform="{Binding Path=, Mode=OneWay, UpdateSourceTrigger=PropertyChanged, Converter={StaticResource MyConverter}}/>
If you look closely at the binding, you will notice that I left the path blank. I don't know what the path from the
Image to the
NumericUpDown is, so I'm going to let you fill that part out.
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