TreeListView.AddNewNode(TreeListNode, Boolean) Method

Adds a new node to the TreeListView‘s underlying datasource.

Assembly : DevExpress.Xpf.Grid.v25.2.dll

NuGet Package : DevExpress.Wpf.Grid.Core

Declaration

C#
VB.NET

csharp

public TreeListNode AddNewNode(
    TreeListNode parentNode,
    bool showUpdateRowButtons = false
)

Public Function AddNewNode(
    parentNode As TreeListNode,
    showUpdateRowButtons As Boolean = False
) As TreeListNode

Parameters

Name	Type	Description
parentNode	TreeListNode

A parent node.

Optional Parameters

Name	Type	Default	Description
showUpdateRowButtons	Boolean	False

If the Edit Entire Row mode and the New Item Row are enabled, you can set this parameter to true to allow users edit values in the new row before posting this row to the data source.

Returns

Type	Description
TreeListNode

A new node.

Remarks

Tip

Topic : Add and Remove Rows

Use the AddNewNode method to add a new node to the view’s underlying datasource. The View immediately reflects any changes made to the datasource and focuses the new node.

The AddNewNode method is only available for datasources which support the following interfaces:

IBindingList
ICollectionView
INotifyCollectionChanged

When a new node is added, the datasource may initialize some values (key fields, for instance). Records can also be initialized by handling the TreeListView.AddingNewNode event.

Refer to the Add and Remove Rows topic for more information.