private void FillTestData() { Random r = new Random(); for (int i = 0; i < 10; i++) { Quotation.Add(new Quotation() { Id = i, Close = (float)(i * r.NextDouble()), Date = DateTime.Now, High = (float)(i * r.NextDouble()), Low = (float)(i * r.NextDouble()), Name = $"Q_{i}", Open = (float)(i * r.NextDouble()), Volume = 10 * i * (int)Math.Round(r.NextDouble()), InstrumentId = i + 1, Difference = 25 }); } }