TreeListView.ExpandStateFieldName Property

Gets or sets the name of the data field within the items source that determines which nodes are expanded.

Namespace: DevExpress.Xpf.Grid

Assembly: DevExpress.Xpf.Grid.v20.2.dll

NuGet Packages: DevExpress.WindowsDesktop.Wpf.Grid.Core, DevExpress.Wpf.Grid.Core

Declaration

C#

public string ExpandStateFieldName { get; set; }

VB.NET

Public Property ExpandStateFieldName As String

Property Value

Type	Description
String	A name of the data field that specifies which nodes are expanded.

Remarks

XAML

<dxg:GridControl ItemsSource="{Binding Employees}">
    <dxg:GridControl.View>
        <dxg:TreeListView KeyFieldName="ID" 
                          ParentFieldName="ParentID" 
                          ExpandStateFieldName="Expanded"/>
    </dxg:GridControl.View>
    <!-- columns -->
</dxg:GridControl>

C#

public class Employee {
    public int ID { get; set; }
    public int ParentID { get; set; }
    public string Name { get; set; }
    public string Position { get; set; }
    public string Department { get; set; }
    public bool Expanded { get; set; }
}

VB.NET

Public Class Employee
    Public Property ID As Integer
    Public Property ParentID As Integer
    Public Property Name As String
    Public Property Position As String
    Public Property Department As String
    Public Property Expanded As Boolean
End Class