If specify DisplayOptions.heightMeasurer as true, when increase the height of row to exceed the basic height of all cells, the height of column cells of which GridColumn.fillHeight is greater than 0 will be kept to the maximum. In addition, when the calculated height of all cells cannot be reflected due to decreasing the height of row, fillHeight will be ignored and the height of each cell will be distributed by the ratio.
In the example below, fillHeight has been set in "Name" and "Picture" columns.
heightMeasurer:
(The data in the example is based on the List of Nobel Prize for Literature in Wikipedia.)