Visual C# Express and API ChartStyle Example

Author: dansmo

Creation Date: 4/15/2010 4:59 AM

Wealth Lab » WealthScript (.NET) » Visual C# Express and API ChartStyle Example

dansmo

4/15/2010 4:59 AM

Hi,

I just installed Visual C# Express and tried to implement the ChartStyle as described in the API document by Fidelity. However I am experiencing some problems. I guess this is because I am using C# for the first time.

I created a project in Visual Express and added the references. When debugging, I get the message that the type or namespace LineChartStyleSettings in
private LineChartStyleSettings _settingsUI;
cannot be found.

What am I missing?
Sorry for this basic questiond and those that will sure follow.
dansmo

Eugene

4/15/2010 5:16 AM

It probably will be easier for you to take an already working project, see the ins and outs, and modify to your taste:

Wealth-Lab Wiki > Home - Community.ChartStyles

dansmo

4/15/2010 5:39 AM

Thank you for your hint. I´ll try it that way.

dansmo

4/15/2010 8:12 AM

Okay, I played a bit with it and was at least able to come up with a "Dotted" ChartStyle:
If you want you can add it to community.

CODE:
Please log in to see this code.

However, what I don´t understand is how to change "ThickBarChartStyleSettings" to "DottedChartStyleSettings". It doesnt make a difference, but when I try to rename the classes I get lots of errors that I dont understand,
i.e. Community.ChartStyles.DottedChartStyleSettings does not contain a defintion fpr "SuspendLayout"...bla bla.

Size:

Color:

Okay, I played a bit with it and was at least able to come up with a "Dotted" ChartStyle:
If you want you can add it to community.

[CODE]	public class DottedChartStyle : ChartStyle, ICustomSettings
    {

private int _Weight;

private DottedChartStyleSettings _settings;

private string _KEY = "DottedChartStyle.LineWidth";

#region ChartStyle

public DottedChartStyle() : base()
        {

}

public override void Initialize()
        {

}

protected override void InitializeBarWidths()
        {

int space = base.BarSpacing;

int iFreeSpace = space - this._Weight;

int iAddLength = (int)Math.Truncate((double)(iFreeSpace / 5));
		
        }

public override void RenderBars(Graphics g)
        {
            int openY;
            int highY;
            int lowY;
            int closeY;
            int barX;
            Pen pen;
            ChartPane chartPane;
            int leftEdgeBar;

pen = new Pen(Color.Black);
            pen.Width = this._Weight;
            chartPane = base.PricePane;
            leftEdgeBar = base.LeftEdgeBar;
			while (leftEdgeBar <= base.RightEdgeBar)
			{
				barX = base.ConvertBarToX(leftEdgeBar);
				closeY = chartPane.ConvertValueToY(base.Bars.Close[leftEdgeBar]);
				pen.Color = base.GetBarColor(leftEdgeBar);

g.DrawEllipse(pen, barX, closeY, _Weight, _Weight);

leftEdgeBar++;
			}

if (base.ShouldDrawGhostBar)
			{
				barX = base.GhostBarXPosition;
				openY = chartPane.ConvertValueToY(base.Bars.Open.PartialValue);
				highY = chartPane.ConvertValueToY(base.Bars.High.PartialValue);
				lowY = chartPane.ConvertValueToY(base.Bars.Low.PartialValue);
				closeY = chartPane.ConvertValueToY(base.Bars.Close.PartialValue);
				pen.Color = base.GhostBarColor;
                g.DrawEllipse(pen, barX, closeY, _Weight, _Weight);
			}

}

public override string FriendlyName
        {
            get
            {
                return "Dotted";
            }
        }
        
		public override Bitmap Glyph
        {
            get
            {
				return Properties.Resources.BarChartStyle;
            }
		}

#endregion

#region ICustomSettings

public virtual void ChangeSettings(UserControl ui)
		{
			ThickBarChartStyleSettings thickBChStSettings = ui as ThickBarChartStyleSettings;
			this._Weight = (int)thickBChStSettings.udLineWidth.Value;
		}

public virtual UserControl GetSettingsUI()
		{
			if (this._settings == null)
				this._settings = new ThickBarChartStyleSettings();

if (this._settings != null)
				this._settings.udLineWidth.Value = this._Weight;
		
			
			return this._settings;
		}

public virtual void ReadSettings(ISettingsHost host)
		{
			this._Weight = host.Get(this._KEY, 2);
		}

public virtual void WriteSettings(ISettingsHost host)
		{
			host.Set(this._KEY, this._Weight);
		}

#endregion
	}[/CODE]