A flexible grid based positioner that provides the ability to specifically size and layout items based on a wide variety of criteria. - Rows do not need to contain similar numbers of cells. - Autosize cells or rows to match contents. - Automatically grow cells and rows to take up unused space. - Set the size of cells and rows by pt or as a percentage. - Set cells or rows to be empty. - Provide minimum, maximum values for rows and cells as pt or percentage. - Anchor content within cells horizontally, vertically or both. - Expand content within cells to utilise available space horizontally, vertically or both. - Provide margins and spacing values. - Overlaps cells onto a specified rows underneath.


Returns the number of cells that contain content and hence are not empty.
public var nonEmptyCellCount Int { get }