TIWCGJQGridCol.Classes Property
This option allow to add classes to the column. If more than one class will be used a space should be set. By example classes:'class1 class2' will set a class1 and class2 to every cell on that column. In the grid css there is a predefined class ui-ellipsis which allow to attach ellipsis to a particular row. Also this will work in FireFox too.
published property Classes: TIWCGJSonSimpleArray index 02 read GetSimpleArrayValue write SetSimpleArrayValue stored IsObjStored;