AccordionControl.CollapseAll() Method
Collapses all group elements that belong to this AccordionControl.
Namespace: DevExpress.XtraBars.Navigation
Assembly: DevExpress.XtraBars.v24.2.dll
NuGet Package: DevExpress.Win.Navigation
#Declaration
#Remarks
The CollapseAll method is the opposite of the AccordionControl.ExpandAll method.