Angular - Template-Driven Forms
How can you use
ngModel with a custom input component to enable two-way binding in Angular?How can you use ngModel with a custom input component to enable two-way binding in Angular?
hard🚀 Application Q9 of 15
Step-by-Step Solution
Solution:
Step 1: Recognize custom component binding
Custom inputs require implementingControlValueAccessorto work withngModel.Step 2: Exclude incorrect options
Using only@Input()or direct binding won't enable two-way binding; ngModel works with custom components only via this interface.Final Answer:
Implement ControlValueAccessor interface in the custom component -> Option DQuick Check:
Custom inputs need ControlValueAccessor [OK]
Quick Trick: Implement ControlValueAccessor for custom ngModel binding [OK]
Common Mistakes:
MISTAKES- Trying to bind ngModel without ControlValueAccessor
- Assuming @Input() is enough for two-way binding
- Thinking ngModel works only on native inputs
Master "Template-Driven Forms" in Angular
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore Angular Quizzes