Blazor ComboBox Example - Cascading ComboBoxes

This example demonstrates the cascading functionalities of the ComboBox component for dependent dropdown chains.

Cascading features:

• Select country from countries ComboBox
• Respective states load in second ComboBox
• Series of ComboBox where value depends on another
• Use ValueChange event handler to load data

Implementation workflow:

• In 1st ComboBox ValueChange event, load 2nd ComboBox data
• Same configuration between 2nd and 3rd ComboBox
• Select country → load states → load cities