Basic Layout and Panel

Every widget has following properties related to the layout:

Name	Type	Default	Description
Left/Top	int	0	X/Y Addition
Width/Height	int?	null	Width/Height of the widget, if set to null, then it is automatically calculated
HorizontalAlignment/VerticalAlignment	enum	Depends on a widget, it's either Stretch or Left/Top	How control is horizontally/vertically aligned in the container
PaddingLeft/PaddingTop PaddingBottom/PaddingRight	int	0	Padding
GridPositionX/GridPositionY	int	0	Position in the grid *
GridSpanX/GridSpanY	int	1	Span in the grid *

The most simple container is Panel widget.