Blazor Dropdown Tree Example - Form Validation

This example demonstrates DropDownTree integration within EditForm with Data Annotations validation.

Validation features:

• Use DropDownTree inside EditForm component
• Validate using DataAnnotationsValidator
• Choose valid values from dropdown popup
• Error messages display for invalid inputs

Validation rules applied:

• Skills - Field must have valid value with minimum two values
• Role - Field must have valid value

Click Submit to validate the form.