AB-410 Building The Apps Practice Question
You need to ensure that a canvas app user can only save their changes if all required fields are filled. What is the most efficient way to validate this?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Set the button DisplayMode based on Form.Valid
The DisplayMode property of the Submit button can be set to 'Edit' only when the form is valid.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Set the button DisplayMode based on Form.Valid
Why this is correct
Form.Valid provides an efficient, built-in check for form readiness.
- ✗
Use a timer
Why it's wrong here
Timers are for delay, not validation.
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Use a variable
Why it's wrong here
Variables are not required for simple form validation.
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Write a manual check for each field
Why it's wrong here
This is redundant; the form object handles validation automatically.
About these practice questions
Courseiva writes every AB-410 question from scratch — 203 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Microsoft exam blueprint
This AB-410 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AB-410 exam.