Assigns a data validation rule to all cells in the Range. If the DataValidation object uses a local reference or area in a formula (i.e. "=A5:B7"), then the range will adjust those local references accordingly based on the range's location. The original DataValidation object will not be affected.

 public void SetDataValidation(DataValidation dataValidation)

Public Sub SetDataValidation(ByVal dataValidation As DataValidation)

A DataValidation object representing the data validation rule to assign to the Range.