Axis text isn't printed and coordinates aren't plotted

Question

The following code will only display the standard graph, but will not print the axis text nor plot any of the coordinates.

public void JapaneseCandleStick()
{
    //GraphPane myPane = base.GraphPane;

    GraphPane myPane = new GraphPane();

    myPane.Title.Text = "Japanese Candlestick Chart Demo";
    myPane.XAxis.Title.Text = "Trading Date";
    myPane.YAxis.Title.Text = "Share Price, $US";

    StockPointList spl = new StockPointList();
    Random rand = new Random();

    // First day is jan 1st
    XDate xDate = new XDate(2006, 1, 1);
    double open = 50.0;

    for (int i = 0; i < 50; i++)
    {
        double x = xDate.XLDate;
        double close = open + rand.NextDouble() * 10.0 - 5.0;
        double hi = Math.Max(open, close) + rand.NextDouble() * 5.0;
        double low = Math.Min(open, close) - rand.NextDouble() * 5.0;

        StockPt pt = new StockPt(x, hi, low, open, close, 100000);
        spl.Add(pt);

        open = close;
        // Advance one day
        xDate.AddDays(1.0);
        // but skip the weekends
        if (XDate.XLDateToDayOfWeek(xDate.XLDate) == 6)
            xDate.AddDays(2.0);
    }

    JapaneseCandleStickItem myCurve = myPane.AddJapaneseCandleStick("trades", spl);
    myCurve.Stick.IsAutoSize = true;
    myCurve.Stick.Color = Color.Blue;

    // Use DateAsOrdinal to skip weekend gaps
    myPane.XAxis.Type = AxisType.DateAsOrdinal;

    // pretty it up a little
    myPane.Chart.Fill = new Fill(Color.White, Color.LightGoldenrodYellow, 45.0f);
    myPane.Fill = new Fill(Color.White, Color.FromArgb(220, 220, 255), 45.0f);

    zedGraphControl1.AxisChange();
    //base.ZedGraphControl.AxisChange();
}

What is wrong with the above and why cannot I see any text or see the plots? It all compiles without errors, hence the referencing and the ZedGraph implementation/referencing seems to be in order.

score 0 · Answer 1 · answered Jun 06 '14 at 09:58

0

when you create an instance of Graphpane it must be referenced to zedGraphControl1, use the following line of code :

 GraphPane myPane = zedGraphControl1.GraphPane;

& here's the output:

enter image description here

answered Jun 06 '14 at 09:58

SanVEE

2,009
5
34
55

That works OK. Thanks for your help San. But why does it work only when called from private void Form1_Load(object sender, EventArgs e)? Call from a button or anywhere else in the program & we get nothing? – Kishor Jun 09 '14 at 09:50
Not really, it should work with button press events as well. I don't see any reason for not working. create another thread & share your code! – SanVEE Jun 09 '14 at 13:14

Axis text isn't printed and coordinates aren't plotted

1 Answers1