private async Task OnCourseSearchChange(ChangeEventArgs e)
{
var search = e.Value?.ToString().ToLower();
if (search.Length > 2 && !searchingCourse)
{
searchingCourse = true;
searchedCourses = await ProgramContext.SearchCoursesByName(search, ProgrammeId);
lastCourseSearch = search;
}
else if (search.Contains(lastCourseSearch) && searchingCourse)
{
searchedCourses = searchedCourses.Where(x => x.CourseName.ToLower().Contains(search)).ToList();
lastCourseSearch = search;
}
else
{
searchedCourses.Clear();
searchingCourse = false;
lastCourseSearch = "";
}
this.StateHasChanged();
}