The TreeField.setRowHeight(int height) method just sets equal height for each of the rows of the TreeField, but I want to set different height for each row. Is it possible? I couldn't find any way.
I think it's not possible to set different height for each row in TreeField, at least currently there is no documented method.
Check the answer of following question asked on BlackBerry Developer Support Forums -
How to create a layout like this: TreeField with variable RowHeight.