![](dotnetdiagramimages/C1_Win_C1FlexGrid_4_5_2_C1_Win_C1FlexGrid_ValidationRule.png)
'Declaration Public MustInherit Class ValidationRule
public abstract class ValidationRule
System.Object
C1.Win.C1FlexGrid.ValidationRule
C1.Win.C1FlexGrid.CompareRule
C1.Win.C1FlexGrid.RangeRule
C1.Win.C1FlexGrid.RequiredRule
C1.Win.C1FlexGrid.StringLengthRule