I am developing an app for sending some feedback.
Basically I\'m trying to make a TextBox for comments, but I\'m used to the WinForms MultiLine=tr
Also, if, like me, you add controls directly in XAML (not using the editor), you might get frustrated that it won't stretch to the available height, even after setting those two properties.
To make the TextBox stretch, set the Height="Auto".
UPDATE:
In retrospect, I think this must have been necessary thanks to a default style for TextBoxes specifying the height to some standard for the application somewhere in the App resources. It may be worthwhile checking this if this helped you.