■ Line 클래스의 GetPointerStyle 이벤트를 사용해 포인터 스타일을 설정하는 방법을 보여준다.
▶ 예제 코드 (C#)
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using System; using System.Drawing; using Steema.TeeChart; using Steema.TeeChart.Styles; TChart chart = new TChart(); chart.Aspect.View3D = false; Random random = new Random(); Line line = new Line(); line.GetPointerStyle += line_GetPointerStyle; line.XValues.DateTime = true; line.Pointer.Visible = true; line.HorizAxis = HorizontalAxis.Top; line.Add(DateTime.Parse("2002/12/25 10:30:00"), random.Next(100), "", Color.Red); line.Add(DateTime.Parse("2002/12/25 22:30:00"), random.Next(100), "", Color.Red); line.Add(DateTime.Parse("2002/12/26 09:20:00"), random.Next(100), "", Color.Red); line.Add(DateTime.Parse("2002/12/26 23:30:00"), random.Next(100), "", Color.Red); line.Add(DateTime.Parse("2002/12/27 11:10:00"), random.Next(100), "", Color.Red); line.Add(DateTime.Parse("2002/12/27 20:15:00"), random.Next(100), "", Color.Red); line.Add(DateTime.Parse("2002/12/28 08:15:00"), random.Next(100), "", Color.Red); line.Add(DateTime.Parse("2002/12/28 21:45:00"), random.Next(100), "", Color.Red); line.Add(DateTime.Parse("2002/12/29 12:45:00"), random.Next(100), "", Color.Red); line.Add(DateTime.Parse("2002/12/29 22:05:00"), random.Next(100), "", Color.Red); chart.Series.Add(line); #region 라인 포인터 스타일 구하기 - line_GetPointerStyle(sender, e) /// <summary> /// 라인 포인터 스타일 구하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void line_GetPointerStyle(CustomPoint sender, GetPointerStyleEventArgs e) { Line line = sender as Line; if(e.ValueIndex > 0) { if(line.YValues[e.ValueIndex] > line.YValues[e.ValueIndex - 1]) { e.Style = PointerStyles.Triangle; } else if(line.YValues[e.ValueIndex] < line.YValues[e.ValueIndex - 1]) { e.Style = PointerStyles.DownTriangle; } else { e.Style = PointerStyles.Diamond; } } else { e.Style = PointerStyles.Diamond; } } #endregion |