Defines the FlexGrid's cell merging behavior.
An instance of this class is automatically created and assigned to the grid's FlexGrid.mergeManager property to implement the grid's default merging behavior.
The GridPanel that contains the range.
The index of the row that contains the cell.
The index of the column that contains the cell.
Whether to clip the merged range to the grid's current view range.
A CellRange that specifies the merged range, or null if the cell is not merged.