TreeView - Flat Data

Telerik UI for Blazor TreeView displays data in a tree-like structure. It allows you to navigate through the items and their children. One of the main ways to provide data to TreeView is using flat data.

The component rendering stays the same regardless of the data type. Yet, its configuration will be different when using flat or hierarchical data. The current demo targets data binding to flat data.

The flat data means that the entire collection of Treeview items is available at one level, unlike when using hierarchical data. The parent-child relationships are created through internal data in the model - the ParentId field which points to the Id of the item that will contain the current item. The root level has null for ParentId. One node at least needs a null value so that the TreeView renders anything. The HasChildren field needs the correct value - for items that have children, set it to true so that the expand arrow is getting rendered.

You can also take a look at the Treeview data binding basics.

The demo above demonstrates a Telerik Blazor TreeView component that uses flat data. The parent-child relationship is created through the Parent and Id fields of the TreeItem model.