How to change verticalContentAlignment in TextBox outlined?

[Cenetik]

I am using a multiline TextBox with Classes="outline" and the text cursor is positioned at the center on the left side. I need the cursor to be in a normal position on the top left corner. I don't understand how to change this behaviour. I tried to set VerticalContentAlignment="Top" but it didn't work.

The strange thing is that when I'm using Classes="filled" the text cursor is positioned normally at the top left corner. But I prefer "outline" style of TextBox. How can I change VerticalContentAlignment in the outline style?

My code of TextBox:

[SKProCH]

This is currently unsupported, but probably isn't hard to add. Basically this is in scope of this PR: #327

As an quick fix you can override a VerticalAlignment from PART_TextContainer in TextBox styles (but i suppose some additional work for proper text area margins is required after that)