numberOfRows The number of rows in the matrix. Declarationvar numberOfRows: Int { get } See AlsoLaying Out the Cells of the MatrixaddColumn()addColumn(with:)addRow()addRow(with:)cellFrame(atRow:column:)cellSizegetNumberOfRows(_:columns:)insertColumn(_:)insertColumn(_:with:)insertRow(_:)insertRow(_:with:)intercellSpacingmakeCell(atRow:column:)numberOfColumnsputCell(_:atRow:column:)