TreeListVirtualModeNodeCreatingEventArgs.IsLeaf Property

Gets or sets whether the processed node has zero child nodes.

Namespace: DevExpress.Web.ASPxTreeList

Assembly: DevExpress.Web.ASPxTreeList.v20.2.dll

NuGet Package: DevExpress.Web

Declaration

C#

public bool IsLeaf { get; set; }

VB.NET

Public Property IsLeaf As Boolean

Property Value

Type	Description
Boolean	true if the processed node has zero child nodes; otherwise, false.

Remarks

Leaf nodes are the nodes farthest from the root node. If you are sure that the processed node has zero child nodes, set the IsLeaf property to true.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the IsLeaf 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#

treelist-how-to-load-data-from-a-database-in-virtual-mode-and-implement-drag-and-drop-e4837/CS/Q515371/Models/TreeListVirtualModeHelper.cs#L33

int childEmployeeCount = nwd.Employees.Where(x => x.ReportsTo == empl.EmployeeID).ToList().Count;
e.IsLeaf = !(childEmployeeCount > 0);
e.SetNodeValue("FirstName", empl.FirstName);

VB.NET

treelist-how-to-load-data-from-a-database-in-virtual-mode-and-implement-drag-and-drop-e4837/VB/Q515371/Models/TreeListVirtualModeHelper.vb#L34

Dim childEmployeeCount As Integer = nwd.Employees.Where(Function(x) x.ReportsTo.Equals(empl.EmployeeID)).ToList().Count
e.IsLeaf = Not(childEmployeeCount > 0)
e.SetNodeValue("FirstName", empl.FirstName)