TreeList.CollapseAll() Method

Collapses all the nodes in the Tree List.

Namespace: DevExpress.XtraTreeList

Assembly: DevExpress.XtraTreeList.v21.1.dll

Declaration

public virtual void CollapseAll()

Remarks

Use the methods below to expand and collapse tree list nodes.

The control’s BeforeExpand, AfterExpand, BeforeCollapse, and AfterCollapse events fire during expand and collapse operations. For example, you can handle the BeforeExpand event to dynamically create child nodes in unbound mode.

Example

The code below collapses all tree list nodes.

treeList1.CollapseAll();
See Also