public List <int> QuestionSelect(List <int> questionIds, int count, int lessonId, DifficultyType difficulty)
{
int tableCount = _context.GetTableCount(s => s.LessonId == lessonId && s.Difficulty == difficulty);
if (tableCount < count)
{
_context.GetList(s => s.LessonId == lessonId && s.Difficulty == difficulty).Select(s => s.Id).ToList().ForEach(questionIds.Add);
questionIds.Add(-1);
return(questionIds);
}
var randomNumberGenerator = new Random();
List <int> skipValues = new List <int>();
for (int i = 0; i < count; i++)
{
int randomValue = randomNumberGenerator.Next(tableCount);
repeat : if (skipValues.Any(s => s == randomValue))
{
randomValue = randomNumberGenerator.Next(tableCount);
goto repeat;
}
skipValues.Add(randomValue);
questionIds.Add(_context.Get(s => s.LessonId == lessonId && s.Difficulty == difficulty, randomValue).Id);
}
return(questionIds);
}
public string[,] LessonSelector()
{
List <Lesson> lessons = _lessonRep.GetList();
string[,] turnArray = new string[lessons.Count, 2];
int iterator = 0;
foreach (var lesson in lessons)
{
turnArray[iterator, 0] = lesson.Id.ToString();
turnArray[iterator, 1] = lesson.LessonName;
iterator++;
}
return(turnArray);
}
public void ListEntityWithTable(Expression <Func <Exam, bool> > filter = null)
{
_view.ShowTable(ListToTable(Context.GetList(filter)));
}
