Hierarchical: TriState;
The Hierarchical property determines whether expanders are used.
If the property is set to TriState.OnOption, expanders are used in the header. If the value is TriState.OffOption, expanders are not used.
If the property is set to undefined value TriState.Undefined, the use of expanders is inherited from the parent header. The effective value taking into account the inheritance is returned by the IsHierarchical property.
The property is set to TriState.OnOption by default.
The property use is given in the example for IEaxGridHeaderProperties.AutoIndent.
See also: