SpanHorizontally
Boolean
Data elements are sequentially displayed left to right, then top to bottom. If the value is False, data elements are displayed top to bottom, then left to right.
False
ItemWidth
Numeric
Width of each cell.
ItemHeight
Height of each cell.
ColumnGutterWidth
Horizontal distance between the cells in the matrix.
RowGutterHeight
Vertical distance between the cells in the matrix.