TreeListNodes.Clear() Method

Removes all elements from the current node collection.

Namespace: DevExpress.XtraTreeList.Nodes

Assembly: DevExpress.XtraTreeList.v23.2.dll

NuGet Packages: DevExpress.Win.Navigation, DevExpress.Win.TreeList

Declaration

C#

public void Clear()

VB.NET

Public Sub Clear

Remarks

A node’s child nodes are stored in the TreeList.Nodes collection. Use the Clear method to remove all child nodes of a specific node.

C#

using DevExpress.XtraTreeList.Nodes.Operations;

treeList1.NodesIterator.DoOperation(new MyOperation(colDEPARTMENT));

public class MyOperation : TreeListOperation {
    public TreeListColumn column;
    public MyOperation(TreeListColumn column) {
        this.column = column;
    }
    public override void Execute(TreeListNode node) {
        if (node.GetValue(column).ToString().Contains("Marketing"))
            node.Nodes.Clear();
    }
}

VB.NET

Imports DevExpress.XtraTreeList.Nodes.Operations

treeList1.NodesIterator.DoOperation(New MyOperation(colDEPARTMENT))

Public Class MyOperation
    Inherits TreeListOperation

    Public column As TreeListColumn
    Public Sub New(ByVal column As TreeListColumn)
        Me.column = column
    End Sub
    Public Overrides Sub Execute(ByVal node As TreeListNode)
        If node.GetValue(column).ToString().Contains("Marketing") Then
            node.Nodes.Clear()
        End If
    End Sub
End Class