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Blazor IndexOutOfRangeException When Clicking on Day View in Workout Component

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I'm working on a Blazor app where users can add workouts and switch between week and day views. However, I'm encountering an IndexOutOfRangeException when switching to the day view after clicking on a day in the UI. The exception is thrown no matter which day I click, and the selectedDay variable is always 7 when the error occurs. I believe the issue is related to my exerciseList not being properly initialized or populated, but I'm not sure how to resolve it.

  • How can I resolve the IndexOutOfRangeException when selecting a day in the view? Should I further initialize or populate the exerciseList to ensure it has enough entries?

  • Is the @rendermode directive contributing to this problem, or is it unrelated?

  • Initialization: I've ensured that daysOfWeek is properly initialized with 7 entries. The loop index i in the for loop goes from 0 to 6.

  • Logging: I added logging in the userSelectsDay method to see the selected day. When the exception is thrown, the selectedDay is always 7, even though the array daysOfWeek only has 7 elements (indexed 0-6).

  • Using ElementAtOrDefault: I'm using ElementAtOrDefault to avoid accessing out-of-bounds indices, but it doesn't seem to work in this case.


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