NodeEventArgs Class

Provides data for the TreeList.AfterCollapse, TreeList.AfterExpand, TreeList.AfterDragNode and TreeList.AfterFocusNode events.

Namespace: DevExpress.XtraTreeList

Assembly: DevExpress.XtraTreeList.v18.1.dll

Declaration

C#

public class NodeEventArgs :
    EventArgs

VB.NET

Public Class NodeEventArgs
    Inherits EventArgs

Related API Members

NodeEventArgs is the data class for the following events:

• TreeList.AfterCheckNode
• TreeList.AfterCollapse
• TreeList.AfterExpand
• TreeList.AfterFocusNode

Remarks

The TreeList.AfterCollapse event occurs after collapsing a Tree List node.

The TreeList.AfterDragNode event occurs after dragging a Tree List node.

The TreeList.AfterExpand event occurs after Tree List node expansion.

The TreeList.AfterFocusNode event occurs after focusing a Tree List node.

The NodeEventArgs.Node property determines a Tree List node.

Related GitHub Examples

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

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-save-checkstate-for-treelistnode-in-a-bound-mode-e3376/CS/SaveCheckStateTreeListNode/SaveCheckHelper.cs#L46

void _treeList_AfterCheckNode(object sender, NodeEventArgs e)
{

how-to-use-treelist-for-file-management-drag-and-drop-files-and-folders-e3400/CS/FileList/FileListHelper.cs#L152

private void treeList1_AfterExpand(object sender, DevExpress.XtraTreeList.NodeEventArgs e)
{

how-to-implement-excel-style-tree-filtering-in-a-filter-popup-t143068/CS/RangeDate/MyGridControl/MyDateFilterPopup.cs#L178

}
private void CreateActiveFilterCriteria(NodeEventArgs e)
{

how-to-implement-node-dynamic-loading-in-unbound-mode-t500394/CS/TreeList-UnboundMode-ViaBeforeExpandEvent/Form1.cs#L143

private void treeList1_AfterExpand(object sender, DevExpress.XtraTreeList.NodeEventArgs e) {
    if (e.Node.StateImageIndex != 1) e.Node.StateImageIndex = 2;

how-to-highlight-a-target-node-during-the-drag-drop-operation-e2074/CS/WindowsApplication1/DnDHighlightHelper.cs#L85

private void TreeList_AfterDragNode(object sender, NodeEventArgs e)
{

VB.NET

how-to-save-checkstate-for-treelistnode-in-a-bound-mode-e3376/VB/SaveCheckStateTreeListNode/SaveCheckHelper.vb#L43

Private Sub _treeList_AfterCheckNode(ByVal sender As Object, ByVal e As NodeEventArgs)
    If _treeList.DataSource Is Nothing Then

how-to-use-treelist-for-file-management-drag-and-drop-files-and-folders-e3400/VB/FileList/FileListHelper.vb#L138

Private Sub treeList1_AfterExpand(ByVal sender As Object, ByVal e As DevExpress.XtraTreeList.NodeEventArgs)
    If e.Node.StateImageIndex <> 1 Then

how-to-implement-excel-style-tree-filtering-in-a-filter-popup-t143068/VB/RangeDate/MyGridControl/MyDateFilterPopup.vb#L152

End Sub
Private Sub CreateActiveFilterCriteria(ByVal e As NodeEventArgs)
    Dim listCriteriaOperator As New List(Of CriteriaOperator)()

how-to-implement-node-dynamic-loading-in-unbound-mode-t500394/VB/TreeList-UnboundMode-ViaBeforeExpandEvent/Form1.vb#L146

Private Sub treeList1_AfterExpand(ByVal sender As Object, ByVal e As DevExpress.XtraTreeList.NodeEventArgs)
    If e.Node.StateImageIndex <> 1 Then

how-to-highlight-a-target-node-during-the-drag-drop-operation-e2074/VB/WindowsApplication1/DnDHighlightHelper.vb#L89

Private Sub TreeList_AfterDragNode(ByVal sender As Object, ByVal e As NodeEventArgs)
    HotTrackNode = Nothing

Inheritance

Show 20 items

Object

EventArgs

NodeEventArgs

BeforeCollapseEventArgs

BeforeDragNodeEventArgs

BeforeExpandEventArgs

CalcNodeDragImageIndexEventArgs

CalcNodeHeightEventArgs

CellEventArgs

FocusedNodeChangedEventArgs

GetPreviewTextEventArgs

GetStateImageEventArgs

NodeChangedEventArgs

ValidateNodeEventArgs

GetSelectImageEventArgs

GetNodeDisplayValueEventArgs

GetCustomNodeCellStyleEventArgs

GetCustomNodeCellEditEventArgs

BeforeFocusNodeEventArgs

CellValueChangedEventArgs