Validation on Grid Plus

Hi All,

I am using gridPlusLayout , i want to know how can we put validation on columnConfigs.

1.Like if want to put validation for null or empty.

2. the second concern is when i am editing a field after made changes it save data into separate variable, but every time when we load grid it by default creates a null empty row and add that row also in save data variable. so when i am saving that record  in record type it thorw error because a null type or row is also adding into save data variable. 

It works fine when we manually remove that data from grid but when we don't remove that causes error. So how to handle this situation.