TreeListNodes.Clear() Method

Removes all elements from the current node collection.

Namespace: DevExpress.XtraTreeList.Nodes

Assembly: DevExpress.XtraTreeList.v18.2.dll

Declaration

C#

public void Clear()

VB.NET

Public Sub Clear

Remarks

All Tree List nodes are stored in the TreeList.Nodes collection. To remove all children from a particular node, use the Clear method.

To remove all nodes from the Tree List, use the TreeList.ClearNodes method.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the Clear() method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-create-an-analog-of-gridlookupedit-with-treelist-in-a-popup-window-e4319/CS/Form1.cs#L141

virtualMode = true;
treeListLookUpEdit1.Properties.TreeList.Nodes.Clear();
treeListLookUpEdit1.Properties.TreeList.Columns.Clear();

how-to-display-bands-and-columns-in-the-same-tree-list-in-the-customization-form-e3723/CS/CustomDescendants/TreeListBandedCustomizationForm.cs#L72

{
    BandsColumnTreeList.Nodes.Clear();
    FillBandsColumnTreeList();

how-to-implement-the-document-map-feature-for-richeditcontrols-document-using-a-treelist-c-t164630/CS/WindowsFormsApplication1/Form1.cs#L22

void richEditControl1_DocumentLoaded(object sender, EventArgs e) {
    treeList1.Nodes.Clear();
    Dictionary<int, TreeListNode> parents = new Dictionary<int, TreeListNode>();

Reporting_winforms-eud-how-to-create-a-control-template-gallery-with-reusable-control-sets-t341218/CS/ControlTemplateGallerySample/ControlTemplateGallery/TemplateUserControl.cs#L95

private void RebuildNodes() {
    tlTemplates.Nodes.Clear();
    if(templateStorage != null) {

VB.NET

how-to-create-an-analog-of-gridlookupedit-with-treelist-in-a-popup-window-e4319/VB/Form1.vb#L140

virtualMode = True
treeListLookUpEdit1.Properties.TreeList.Nodes.Clear()
treeListLookUpEdit1.Properties.TreeList.Columns.Clear()

how-to-display-bands-and-columns-in-the-same-tree-list-in-the-customization-form-e3723/VB/CustomDescendants/TreeListBandedCustomizationForm.vb#L80

Public Overrides Sub CheckAndUpdate()
    BandsColumnTreeList.Nodes.Clear()
    FillBandsColumnTreeList()

how-to-implement-the-document-map-feature-for-richeditcontrols-document-using-a-treelist-c-t164630/VB/WindowsFormsApplication1/Form1.vb#L24

Private Sub richEditControl1_DocumentLoaded(ByVal sender As Object, ByVal e As EventArgs)
    treeList1.Nodes.Clear()
    Dim parents As New Dictionary(Of Integer, TreeListNode)()

Reporting_winforms-eud-how-to-create-a-control-template-gallery-with-reusable-control-sets-t341218/VB/ControlTemplateGallerySample/ControlTemplateGallery/TemplateUserControl.vb#L102

Private Sub RebuildNodes()
    tlTemplates.Nodes.Clear()
    If templateStorage IsNot Nothing Then