FileExplorerAssistant.Attach(TreeList, Action<TreeListExtension>) Method

Creates a new TreeListExtension and attaches it to the target Tree List.

Namespace: DevExpress.XtraDialogs

Assembly: DevExpress.XtraDialogs.v25.1.dll

NuGet Packages: DevExpress.Win.Dialogs, DevExpress.Win.Navigation

Declaration

C#

public TreeListExtension Attach(
    TreeList treeList,
    Action<TreeListExtension> settings = null
)

VB.NET

Public Function Attach(
    treeList As TreeList,
    settings As Action(Of TreeListExtension) = Nothing
) As TreeListExtension

Parameters

Name	Type	Description
treeList	TreeList	The TreeList control that should be managed by a new TreeListExtension.

Optional Parameters

Name	Type	Default	Description
settings	Action<DevExpress.XtraDialogs.FileExplorerExtensions.TreeListExtension>	null	A delegate that sets up the newly created TreeListExtension.

Returns

Type	Description
DevExpress.XtraDialogs.FileExplorerExtensions.TreeListExtension	The newly created TreeListExtension attached to the target Tree List control.

Remarks

The code below illustrates how to create a TreeListExtension with required settings and attach it to the “treeList1” control. The GuidNode added to the RootNodes collection is the “Desktop” Windows folder.

C#

var extension = fileExplorerAssistant1.Attach(treeList1, x=> {
    x.RootNodes.Add(new GuidNode(new Guid("B4BFCC3A-DB2C-424C-B029-7FE99A87C641")));
    // Other settings
});

VB.NET

Dim extension = fileExplorerAssistant1.Attach(treeList1, Sub(x)
    x.RootNodes.Add(New GuidNode(New Guid("B4BFCC3A-DB2C-424C-B029-7FE99A87C641")))
    ' Other settings
End Sub)

See this article for more information on extensions and their core settings: Custom Browsers (FileExplorerAssistant Component).