Calculates the row state. The row state is a composite value which is calculated from the individual properties (row selected, current row).
The row state is linked to the css class in the row template and determines the grid row visual appearance.
nulldefault implementation -
obj.calculateRowState = function(i){
var state = "";
if (this.getCurrentRow()==i){state = "current"}
if (this.getRowSelected(i)){state = "selected"}
this.setRowState(state, i);
};