TreeViewItemBuilder.Items(Action<CollectionFactory<TreeViewItemBuilder>>) Method

Provides access to the client-side items option that represents a TreeView item collection.

Namespace: DevExtreme.AspNet.Mvc.Builders

Assembly: DevExtreme.AspNet.Core.dll

Declaration

public TreeViewItemBuilder Items(
    Action<CollectionFactory<TreeViewItemBuilder>> configurator
)

Parameters

Name	Type	Description
configurator	Action<CollectionFactory<TreeViewItemBuilder>>	A function that allows you to add items to the collection.

Returns

Type	Description
TreeViewItemBuilder	A reference to this instance after the method is called.

Remarks

To configure a TreeView item collection, use a multiline lambda expression. In this case, a lambda parameter performs the role of a collection factory, and its Add() method adds a new item to the collection. The Add() method returns TreeViewItemBuilder whose methods you can use to configure an item.

Razor C#

@(Html.DevExtreme().TreeView()
    .Items(items => {
        items.Add().Items(subItems => {
            subItems.Add(); // call methods to configure a TreeView item
            subItems.Add();
        });
    })
)

Refer to Nested Options and Collections for more information.