public async Task DeleteAsync(int id)
        {
            var controlEvent = await _dbContext.ControlEvents.FirstOrDefaultAsync(ce => ce.MailId == id);

            _dbContext.Remove(controlEvent);
            await _dbContext.SaveChangesAsync();
        }
 public async Task DeleteTextAsync(int id)
 {
     _dbContext.Remove(_dbContext.Texts.FirstOrDefaultAsync(t => t.TextId == id));
     await _dbContext.SaveChangesAsync();
 }