TreeList.AllNodesCount Property

Returns the total number of nodes within the TreeList.

Namespace: DevExpress.XtraTreeList

Assembly: DevExpress.XtraTreeList.v19.1.dll

Declaration

C#

[Browsable(false)]
public int AllNodesCount { get; }

VB.NET

<Browsable(False)>
Public ReadOnly Property AllNodesCount As Integer

Property Value

Type	Description
Int32	An integer value indicating the total number of nodes.

Remarks

The TreeList control is designed to display nodes in a tree-like manner. It displays a number of first-level (root) nodes each of which can have a number of child nodes. Each child can have its own children, etc. Nodes can be expanded and collapsed in order to show or hide their child nodes respectively. Thus a node is visible if it is a root node or all its parent nodes are expanded.

Use the AllNodesCount property to obtain the total number of nodes in the TreeList control. If you want to obtain the number of visible nodes use the TreeList.VisibleNodesCount property instead.

Related GitHub Examples

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

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-delete-selected-nodes-within-the-treelist-control-e799/CS/E799_Sample/Form1.cs#L34

private void button1_Click(object sender, EventArgs e) {
    if (treeList1.AllNodesCount == 0) return;
    treeList1.DeleteSelectedNodes();

how-to-embed-a-checkbox-into-a-column-header-and-handle-clicks-on-it-e1327/CS/CheckBoxInColumnHeader/Form1.cs#L57

private bool IsAllSelected(TreeList tree) {
    return tree.Selection.Count > 0 && tree.Selection.Count == tree.AllNodesCount;
}

VB.NET

how-to-delete-selected-nodes-within-the-treelist-control-e799/VB/E799_Sample/Form1.vb#L36

Private Sub button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles button1.Click
    If treeList1.AllNodesCount = 0 Then
        Return

how-to-embed-a-checkbox-into-a-column-header-and-handle-clicks-on-it-e1327/VB/CheckBoxInColumnHeader/Form1.vb#L60

Private Function IsAllSelected(ByVal tree As TreeList) As Boolean
    Return tree.Selection.Count > 0 AndAlso tree.Selection.Count = tree.AllNodesCount
End Function