[C#/WINFORM/TEECHART] ColorLine 클래스 : DragRepaint 속성을 사용해 드래그시 차트 다시 그리기

■ ColorLine 클래스의 DragRepaint 속성을 사용해 드래그시 차트를 다시 그리는 방법을 보여준다.

▶ MainForm.cs


using System.Drawing;
using System.Windows.Forms;

using Steema.TeeChart.Drawing;
using Steema.TeeChart.Styles;
using Steema.TeeChart.Tools;

namespace TestProject
{
    /// <summary>
    /// 메인 폼
    /// </summary>
    public partial class MainForm : Form
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainForm()

        /// <summary>
        /// 생성자
        /// </summary>
        public MainForm()
        {
            InitializeComponent();

            Text = "ColorLine 클래스 : DragRepaint 속성을 사용해 드래그시 차트 다시 그리기";

            this.tChart.Panel.Pen = new ChartPen(Color.Black);

            Points points = new Points(this.tChart.Chart);

            points.ColorEach = true;

            points.FillSampleValues(20);

            Line line = new Line(this.tChart.Chart);

            line.FillSampleValues(20);

            double minimum;
            double maximum;

            if(line.YValues.Maximum > points.YValues.Maximum)
            {
                maximum = line.YValues.Maximum;
            }
            else
            {
                maximum = points.YValues.Maximum;
            }

            if(line.YValues.Minimum > points.YValues.Minimum)
            {
                minimum = points.YValues.Minimum;
            }
            else
            {
                minimum = line.YValues.Minimum;
            }

            ColorLine colorLine1 = new ColorLine(this.tChart.Chart);

            colorLine1.Axis        = this.tChart.Axes.Left;
            colorLine1.Pen.Width   = 2;
            colorLine1.Pen.Color   = Color.Red;
            colorLine1.Value       = minimum + ((maximum - minimum) / 2);
            colorLine1.DragRepaint = true;

            ColorLine colorLine2 = new ColorLine(this.tChart.Chart);

            colorLine2.Axis        = this.tChart.Axes.Bottom;
            colorLine2.Pen.Width   = 2;
            colorLine2.Pen.Color   = Color.Blue;
            colorLine2.Value       = 10;
            colorLine2.DragRepaint = true;
        }

        #endregion
    }
}

using System.Drawing;

using System.Windows.Forms;

using Steema.TeeChart.Drawing;

using Steema.TeeChart.Styles;

using Steema.TeeChart.Tools;

namespace TestProject

{

/// <summary>

/// 메인 폼

/// </summary>

public partial class MainForm : Form

{

//////////////////////////////////////////////////////////////////////////////////////////////////// Constructor

////////////////////////////////////////////////////////////////////////////////////////// Public

#region 생성자 - MainForm()

/// <summary>

/// 생성자

/// </summary>

public MainForm()

{

InitializeComponent();

Text = "ColorLine 클래스 : DragRepaint 속성을 사용해 드래그시 차트 다시 그리기";

this.tChart.Panel.Pen = new ChartPen(Color.Black);

Points points = new Points(this.tChart.Chart);

points.ColorEach = true;

points.FillSampleValues(20);

Line line = new Line(this.tChart.Chart);

line.FillSampleValues(20);

double minimum;

double maximum;

if(line.YValues.Maximum > points.YValues.Maximum)

{

maximum = line.YValues.Maximum;

}

else

{

maximum = points.YValues.Maximum;

}

if(line.YValues.Minimum > points.YValues.Minimum)

{

minimum = points.YValues.Minimum;

}

else

{

minimum = line.YValues.Minimum;

}

ColorLine colorLine1 = new ColorLine(this.tChart.Chart);

colorLine1.Axis = this.tChart.Axes.Left;

colorLine1.Pen.Width = 2;

colorLine1.Pen.Color = Color.Red;

colorLine1.Value = minimum + ((maximum - minimum) / 2);

colorLine1.DragRepaint = true;

ColorLine colorLine2 = new ColorLine(this.tChart.Chart);

colorLine2.Axis = this.tChart.Axes.Bottom;

colorLine2.Pen.Width = 2;

colorLine2.Pen.Color = Color.Blue;

colorLine2.Value = 10;

colorLine2.DragRepaint = true;

}

#endregion

}

※ 색상 라인 드래그시 DragRepaint 속성이 false인 경우 잔상이 보이나 true인 경우 잔상이 보이지 않는다.

TestProject.zip