Practice 1
Dialog announcement
Open a dialog and test its name, initial focus, focus containment, and close behavior.
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LESSON 18 OF 20
Complex widgets and data
Dialogs, tables, comboboxes, filters, calendars, and carousels combine many accessibility decisions and must be tested as complete interaction sequences.
In this lesson
Test complex components from entry through operation, feedback, error recovery, and exit.
Establish a clear interaction context
Dialogs and composite widgets need a name, an understandable starting point, predictable internal navigation, and a reliable route out.
Keep structure available during operation
Tables must preserve header context; grids and calendars must expose position and state; comboboxes must connect input, suggestions, selection, and feedback.
Provide alternatives to pointer gestures
Reordering and drag operations need an operable alternative that communicates the item, destination, and result.
Control motion and changing collections
Carousels, filters, sorting, and inserted data should expose state and results while letting users pause motion and retain their place.
What to remember
Test the whole widget contract, not one announcement at rest.
Knowledge check
Answer every question, then use the forward lesson button to record this lesson as complete. The check is not scored and can be repeated.