TIWCGJQGridOptions.RowNumbers Property
If this option is set to true, a new column at left of the grid is added. The purpose of this column is to count the number of available rows, beginning from 1. In this case colModel is extended automatically with new element with name - 'rn'. Also, be careful not to use the name 'rn' in colModel
published property RowNumbers: Boolean index 53 read GetBooleanValue write SetBooleanValue stored IsBooleanStored;
Property Value
Type: Boolean