Validation (React)

The FlexGrid helps with validation in several ways. Automatic Type Coercion, Data Maps, Event-Based Validation and CollectionView-Based Validation. The grid below demonstrates the three first items. It has a Country column with a data map that prevents users from entering invalid countries. The cellEditEnding event is used to ensure that the 'Sales' and 'Expenses' columns contain positive values.

This example uses React.