Question

I would like to be able to programmatically bind some data to the dependency properties on a BitmapEffect. With a FrameworkElement like TextBlock there is a SetBinding method where you can programmatically do these bindings like:

myTextBlock.SetBinding(TextBlock.TextProperty, new Binding('SomeProperty')); 

And I know you can do it in straight XAML (as seen below)

<TextBlock Width='Auto' Text='Some Content' x:Name='MyTextBlock' TextWrapping='Wrap' >     <TextBlock.BitmapEffect>         <BitmapEffectGroup>             <OuterGlowBitmapEffect x:Name='MyGlow' GlowColor='White' GlowSize='{Binding Path=MyValue}' />         </BitmapEffectGroup>     </TextBlock.BitmapEffect> </TextBlock> 

But I can’t figure out how to accomplish this with C# because BitmapEffect doesn’t have a SetBinding method.

I’ve tried:

myTextBlock.SetBinding(OuterGlowBitmapEffect.GlowSize, new Binding('SomeProperty') { Source = someObject }); 

But it doesn’t work.

Answer 1

You can use BindingOperation.SetBinding:

Binding newBinding = new Binding(); newBinding.ElementName = 'SomeObject'; newBinding.Path = new PropertyPath(SomeObjectType.SomeProperty); BindingOperations.SetBinding(MyGlow, OuterGlowBitmapEffect.GlowSizeProperty, newBinding); 

I think that should do what you want.