Blank space issue for Candle Sticks Graph

[Quant]

while drawing Candle Stick Graph in Teechart.Net. When datavalue is not present for particular date it shows blank space (e.g.for Saturday, Sunday and Holiday.). previously when we were using Ocx version the candlestick graph was continuous without any blank space
Kindly see the attached file

[Christopher]

while drawing Candle Stick Graph in Teechart.Net. When datavalue is not present for particular date it shows blank space (e.g.for Saturday, Sunday and Holiday.). previously when we were using Ocx version the candlestick graph was continuous without any blank space
Kindly see the attached file

There is an example in the Feature Demo under:
%Program Files%\Steema Software\Steema TeeChart for .NET 201X 4.1.201X.XXXXX\Examples\DemoProject\bin\ExecutableDemo\TeeChartNetExamples.exe

Go to the "All Features tab" and then
Welcome !\Chart styles\Financial\Candle (OHLC)\Axis Labels no Weekends

[Quant]

Thank you for your prompt response. I already gone through that example.
But that workaround of labels will not work for me.

[Christopher]

Thank you for your prompt response. I already gone through that example.
But that workaround of labels will not work for me.

Can you please send us the code that worked correctly for you in the OCX version?

[Quant]

Code: Select all

TChartMain.Series(0).asCandle.AddCandle(dtTemp.ToOADate(), OpenValue, HighValue, LowValue, CloseValue, dtTemp.Date.ToString(), (uint)TeeChart.EConstants.clTeeColor);
             

[Christopher]

Hello,

In TeeChart AX there is a property called "RemoveGaps":

removegaps.PNG (109.42 KiB) Viewed 25326 times

This property is not present in TeeChart .NET, so I have added this property as a feature request with id=1147. In the meantime, the only option is to use the technique I have described, I'm afraid.

[Quant]

Hi Christopher,

We need the same property on urgent basis, since we can not use given workaround for our project. Using integer value in date field makes us compromise most of the user requirements. It also changes our most of the source code which is based on the ActiveX Version of TeeChart.

Please let us know when we can get this functionality.

[Christopher]

Please let us know when we can get this functionality.

This property will be considered for inclusion into the next maintenance release, due out at the middle of next month.

[Quant]

This property will be considered for inclusion into the next maintenance release, due out at the middle of next month.

We have downloaded the latest release of .Net TeeChart, but we haven't found the resolution for this Blank Space Issue.
Please let us know where we can find the same.

[Christopher]

We have downloaded the latest release of .Net TeeChart, but we haven't found the resolution for this Blank Space Issue.
Please let us know where we can find the same.

In the latest release notes we have:

1147.PNG (4.51 KiB) Viewed 25214 times

This property can be used like this:

Code: Select all

    Candle series1;

    private void InitializeChart()
    {
      tChart1.Aspect.View3D = false;
      tChart1.Legend.Visible = false;
      series1 = new Candle(tChart1.Chart);

      Random r = new Random();
      double tmpOpen;
      double tmpClose;
      int count = 0;
      DateTime dt = DateTime.Today; 
      TimeSpan ts = TimeSpan.FromDays(1);
      for (int t = 0; t < 13; t++)
      {
        tmpOpen = r.Next(100);
        tmpClose = tmpOpen - r.Next(100);
        if (dt.DayOfWeek != DayOfWeek.Saturday & dt.DayOfWeek !=
          DayOfWeek.Sunday)
        {
          ++count;
          series1.Add(dt, tmpOpen, tmpOpen + r.Next(50),
            tmpClose - r.Next(50), tmpClose);
        }
        dt += ts;
      }
    }

    private void checkBox1_CheckedChanged(object sender, EventArgs e)
    {
      series1.RemoveGaps = checkBox1.Checked;
    }

[Quant]

Code: Select all

                    Candle newSeries = new Candle();
                    newSeries.VertAxis = VerticalAxis.Right;
                    newSeries.UpCloseColor = Color.White;
                    newSeries.DownCloseColor = Color.Black;
                    newSeries.CandleWidth = 2;
                    newSeries.TreatNulls = TreatNullsStyle.Skip;
                    newSeries.Marks.Style = MarksStyles.Value;
                    newSeries.Marks.MultiLine = true;
                    newSeries.Title = "Title1";

                    for (int i = 0; i < chartObj.totalSampleValues; i++)
                    {
                        date = (DateTime)dataTable.Rows[i][0];
                        open = dataTable.Rows[i][1];
                        close = dataTable.Rows[i][2];
                        high = dataTable.Rows[i][3];
                        low = dataTable.Rows[i][4];

                        labels.Add(date.ToShortDateString());
                        closeValues.Add(close.ToString());
                        //newSeries.Add(i, open, high, low, close);
                        newSeries.Add(date, open, high, low, close);
                    }
                    //newSeries.Labels = labels; 
                    newSeries.RemoveGaps = true;
                    this.tChart1.Series.Add(newSeries);
                    newSeries = (Candle)tChart1.Series[0];
                   

We are using above code for removing blank space issues in our main project; but is shows us blank screen.
Error comes at "newSeries.RemoveGaps = true;" this line.

Note: While in sample project this feature works as expected.

[Christopher]

Hello,

Without access to your data, I'm afraid I cannot reproduce your issue. Can you please modify the code snippet below so I can reproduce your issue here?

Code: Select all

    Candle newSeries;
    private void InitializeChart()
    {
      newSeries = new Candle();
      newSeries.VertAxis = VerticalAxis.Right;
      newSeries.UpCloseColor = Color.White;
      newSeries.DownCloseColor = Color.Black;
      newSeries.CandleWidth = 2;
      newSeries.TreatNulls = TreatNullsStyle.Skip;
      newSeries.Marks.Style = MarksStyles.Value;
      newSeries.Marks.MultiLine = true;
      newSeries.Title = "Title1";

      DateTime date = DateTime.Today;
      double open, close, high, low;
      Random rnd = new Random();

      for (int i = 0; i < 20; i++)
      {
        date = date.AddDays(1);
        open = rnd.NextDouble();
        high = open + rnd.NextDouble();
        close = high - rnd.NextDouble();
        low = close - rnd.NextDouble();

        //labels.Add(date.ToShortDateString());
        //closeValues.Add(close.ToString());
        //newSeries.Add(i, open, high, low, close);

        if (date.DayOfWeek != DayOfWeek.Saturday & date.DayOfWeek !=
          DayOfWeek.Sunday)
        {
          newSeries.Add(date, open, high, low, close);
        }

      }
      //newSeries.Labels = labels; 
      newSeries.RemoveGaps = true;
      this.tChart1.Series.Add(newSeries);
      newSeries = (Candle)tChart1.Series[0];
      tChart1.Axes.Bottom.Labels.Angle = 90;

    }


    private void checkBox1_CheckedChanged(object sender, EventArgs e)
    {
      newSeries.RemoveGaps = !newSeries.RemoveGaps;
    }

[Quant]

Without access to your data, I'm afraid I cannot reproduce your issue. Can you please modify the code snippet below so I can reproduce your issue here?

We are using a DataTable with Following Fields
1] Date
2] Open
3] Close
4] High
5] Low

[Quant]

Our problem still continues with series.RemoveGaps property. It shows blank screen when set to "true".

[Christopher]

Our problem still continues with series.RemoveGaps property. It shows blank screen when set to "true".

As per the instructions for posting in this forum, which you can read here, can you please provide a Short, Self Contained, Correct (Compilable), Example (explanation here) with which we can reproduce your problem.

Thank you.