i have a combobox that binding to table , what i need is wneh i retured the data i dont want to duplicate entries
for example i have combobox with item BOQ Section and the item as the following "concrete , concrete, concrete , Utilities , utilities, concrete, AirCondiotioning ,utilities, concrete, AirCondiotioning"
i just need to retrun :"concrete , Utilities, AirConditoning"
how i can do this ????