How to Resize an image on an Image Control?

Question

I’m trying to resize an image on a UWP Image control (XAML) using

ScaleTransform t = (ScaleTransform)image.RenderTransform;

But am getting an error:

Unable to cast object of type 'Windows.UI.Xaml.Media.MatrixTransform' to type 'Windows.UI.Xaml.Media.ScaleTransform'.

So how do I resize it (not using the Stretch property)?

Answer 1

Assign a new ScaleTransform to the RenderTransform property once:

image.RenderTransform = new ScaleTransform();

Now you can later safely access it by

var t = (ScaleTransform)image.RenderTransform