Putting it all together

Introduction to Power Apps

Luise Freese

Azure & Power Platform Architect

What you've built so far

Three connected screens: gallery with filter and search, detail with back arrow, and edit form with Save button.

Gallery, bound, filtered, searched
Detail, carries the selected row via Set()
Edit Form, submits with validation

The App checker

A built-in linter for canvas apps
Scans formulas, properties, screens
Catches bugs before your users do

App Checker panel open in Power Apps Studio, showing the category list: Formulas, Runtime, Accessibility, Performance, and Data source

Formulas tab

App Checker Formulas tab expanded, listing formula errors grouped by screen, each naming the control and property at fault

Errors: broken references, formulas that won't run
Warnings: delegation, performance hints
Info: unused variables, stylistic suggestions

Accessibility tab

Screen readers need AccessibleLabel on inputs
Text needs enough contrast to read
Tab order should make sense

App Checker Accessibility tab expanded, listing missing accessible label findings grouped by control

Fixing a finding

$$ $$

App Checker with a missing accessible label finding selected; Studio has jumped to the control and shows its AccessibleLabel property in the formula bar, ready to fix

Click the finding → Studio jumps to it
Fix the property in the formula bar
Re-run App Checker to confirm

What you'll build

Walk the app end-to-end in preview
Wire up the final edit-from-detail flow
Run App Checker and clear any warnings

App Checker Formulas results showing a clean No errors found state with a green checkmark

Let's practice!

Introduction to Power Apps