I have a problem with alignment of the child form in a parent form.
I would like to have this Form3 in the upper right corner of the Form1 - always - even when user changes the size of the form1. Form3 it has to be located there. The location property can only align it by upper left corner, so this isnt much helpful.

I mean something like "Anchor" property for tools, where you can set all 4 sides. But for forms this is impossible.

Any ideas how to do it?

Are you referring to MDI forms or is one form on top of another?