wpf image resources and changing image in wpf control at runtime

Question

I would like to know exactly how to dynamically use a Dictionary Resource in the C# code behind - ie.. I would like to load images at runtime from an image resource within a dic

Answer 1

This is an addition to the accepted answer: When working within a ViewModel from MVVM, make sure to use the FindResource from the view where the resource directory is added.

My view in this case is a window (I know not correct MVVM ;-) )

Image img = new Image();                                    
img.Source = (ImageSource)WindowReference.FindResource("Pluse"); 

Here the WindowReference is a reference to My.MainWindow.