✅ OnParametersSetAsync() in a blazor component being called before clicking a button in Blazor app

<button class="btn btn-primary" onClick="@(() => ShowCourses(term.Id))">Show Course List</button>

<CourseList TermId="termId" />

@code
Guid termId;

private void ShowCourses(Guid id)
{
  if (termId == id)
  {
    return;
  }
  termId = id;
  StateHasChanged();
}

@if (showDetails)
{
  table code here ...
}

@code
  [Parameter]
  public Guid TermId { get; set; }
  bool showDetails = false;

  protected override async Task OnParameterSetAsync()
{
        var result = await Http.GetAsync($"api/course/ListByTermId/{TermId}");
        if (result.IsSuccessStatusCode)
        {
            courses = await result.Content.ReadFromJsonAsync<List<CourseResponse>>();
            showDetails = true;
        }
        else
        {
            showDetails = false;
        }
}