Avoid points sorting in a series

[Brinet]

Are there any ways to avoid points being automatically sorted?

As you can see in the attached file, the values on axis are double and they are
sorted in ascendanting order. However it's not´really what I need, as the values have
to be displayed in their original order. I have already tried to use
points.XValues.Order = Steema.TeeChart.Styles.ValueListOrder.None before populating the series, but it doesn't work.
In my example the first bar should be the one with x value 1246 (mot 1204), second with 1247,...

I hope you have some suggestions.

Regards

[Narcís]

Hi Brinet,

Code snippet below works fine for me here using latest TeeChart for .NET 2010 avaiable at the client area. Does it work fine at your end? Does this solve the problem at your end? If it doesn't please modify the code snippet below or attach a simple example project we can run "as-is" to reproduce the problem here and let us know the TeeChart version you are using.

Code: Select all

            Steema.TeeChart.Styles.Bar bar1 = new Steema.TeeChart.Styles.Bar(tChart1.Chart);

            bar1.XValues.Order = Steema.TeeChart.Styles.ValueListOrder.None;

            Random x = new Random();
            Random y = new Random();

            for (int i = 0; i < 10; i++)
            {
                bar1.Add(x.Next(), y.Next(), i.ToString());    
            }

            tChart1.Axes.Bottom.Labels.Style = Steema.TeeChart.AxisLabelStyle.Value;

Thanks in advance.

[Brinet]

Unfortunately your solution doesn't work for me. The x axis values are sorted in ascendanting order, again. And for our purposes they shouldn't
be sorted. I have a following piece of code:

Code: Select all

  private void SearchForSecondSelectionData(string tablename, string startDateTime, string endDateTime, string index)
        {
            WebServerClient.WebServerService.CWSRPCommClient proxy = new WebServerClient.WebServerService.CWSRPCommClient();

            response = Conversions.ObserveAreaToStringStringArray(proxy.SearchForTableData(tablename, startDateTime, endDateTime, index));

            if (tChart1 == null)
                tChart1 = FindName("tChart") as Steema.TeeChart.TChart;

            tChart1.Series.Clear();

            if (points == null)
                points = new Steema.TeeChart.Styles.Bar();
            else
                points.Clear();
            tChart1.Series.Add(points);

            points.XValues.Order = Steema.TeeChart.Styles.ValueListOrder.None;
           // tChart1.Series.Add(points);

            for (int i = 0; i < response.Length; i++)
            {
                String date = response[i][0].Substring(0, 19);

                String slagmass = response[i][1];
                double dslagmass = Convert.ToDouble(slagmass);

                if (cbChartType.SelectedIndex == 5)
                    dslagmass *= 1000;

                points.Add(Convert.ToDouble(response[i][2].ToString()),dslagmass);
                
            }


            
            tChart1.Axes.Bottom.Labels.Style = AxisLabelStyle.Value;
}

The values from the database are inserted in the array response. These values musn't be sorted!
However they are. ((( Can you plase tell me help me how can I solve this problem, that has already taken me two days.
I use TeeChart .Net v2.

Thank you!

[Narcís]

Hi Brinet,

The code snippet I posted also works fine using latest v2 release available. Can you please arrange a simple example project we can run "as-is" to reproduce your problem here? You could populate the array manually.

Thanks in advance.

[Brinet]

Thank you very much for your response.

Here is the code with manually populated string string array.
I hope you will be able to reproduce the problem. It still doesn't work.

Code: Select all

private void Func()
{
            InitializeArray();
            if (tChart1 == null)
                tChart1 = FindName("tChart") as Steema.TeeChart.TChart;

            tChart1.Series.Clear();
            if (points == null)
                points = new Steema.TeeChart.Styles.Bar();
            else
                points.Clear();
            tChart1.Series.Add(points);
            points.XValues.Order = Steema.TeeChart.Styles.ValueListOrder.None;
            for (int i = 0; i < response.Length; i++)
            {
                String slagmass = response[i][1];
                double dslagmass = Convert.ToDouble(slagmass);
                points.Add(Convert.ToDouble(response[i][0].ToString()), dslagmass);
            }
}
 private void InitializeArray()
        {
            response = new String[13][];
            for (int i = 0; i < response.Length; i++)
            {
                response[i] = new String[] { "", "" };
            }
            response[0][0] = "0001633";
            response[1][0] = "0001634";
            response[2][0] = "0001635";
            response[3][0] = "0001636";
            response[4][0] = "0001621";
            response[5][0] = "0001640";
            response[6][0] = "0001622";
            response[7][0] = "0001641";
            response[8][0] = "0001623";
            response[9][0] = "0001647";
            response[10][0] = "0001637";
            response[11][0] = "0001648";
            response[12][0] = "0001642";

            response[0][1] = "103.621";            
            response[1][1] = "113.109";            
            response[2][1] = "139.209";           
            response[3][1] = "115.021";
            response[4][1] = "986.835";         
            response[5][1] = "165.181";         
            response[6][1] = "152.182";         
            response[7][1] = "117.816";          
            response[8][1] = "113.72";         
            response[9][1] = "124.243";
            response[10][1] = "115.363";          
            response[11][1] = "130.747";           
            response[12][1] = "150.621";
        }

Thank you!!!

[Narcís]

Hi Brinet,

For simplicity I used your code in a WinForms application, dropping a TChart component into a WinForm and using code snippet below. It's almost idential to yours with very little changes.

Code: Select all

    public Form1()
    {
      InitializeComponent();
      InitializeChart();
    }

    private void InitializeChart()
    {
      tChart1.Dock = DockStyle.Fill;

      InitializeArray();

      Steema.TeeChart.Styles.Bar points = new Steema.TeeChart.Styles.Bar(tChart1.Chart);
      points.XValues.Order = Steema.TeeChart.Styles.ValueListOrder.None;

      for (int i = 0; i < response.Length; i++)
      {
        String slagmass = response[i][1];
        double dslagmass = Convert.ToDouble(slagmass);
        points.Add(Convert.ToDouble(response[i][0].ToString()), dslagmass, i.ToString());
      }
    }

    private String[][] response;

    private void InitializeArray()
    {
      response = new String[13][];
      for (int i = 0; i < response.Length; i++)
      {
        response[i] = new String[] { "", "" };
      }
      response[0][0] = "0001633";
      response[1][0] = "0001634";
      response[2][0] = "0001635";
      response[3][0] = "0001636";
      response[4][0] = "0001621";
      response[5][0] = "0001640";
      response[6][0] = "0001622";
      response[7][0] = "0001641";
      response[8][0] = "0001623";
      response[9][0] = "0001647";
      response[10][0] = "0001637";
      response[11][0] = "0001648";
      response[12][0] = "0001642";

      response[0][1] = "103.621";
      response[1][1] = "113.109";
      response[2][1] = "139.209";
      response[3][1] = "115.021";
      response[4][1] = "986.835";
      response[5][1] = "165.181";
      response[6][1] = "152.182";
      response[7][1] = "117.816";
      response[8][1] = "113.72";
      response[9][1] = "124.243";
      response[10][1] = "115.363";
      response[11][1] = "130.747";
      response[12][1] = "150.621";
    }

Using code above with latest TeeChart for .NET v2 release available at the client download area I got this chart:

NonSortedBar.jpg (137.62 KiB) Viewed 14571 times

As can be seen in bars marks, they are not sorted. Do you get the same at your end? Are you using latest v2 release available?

Thanks in advance.

[Brinet]

Helo Narcis,

thank you for your reply. However, the values in your example are sorted though.
The first bar for example has value greater that 900 which correspondes to array element
with x value that is equal to 0001621. And this bar should be fifth bar on the graph.
I am not sure if I was clear , but I need the values to be displayed in exactly the same order as they are stored in the array.

So what I want is the following:

FIRST BAR: X VALUE = 0001633
Y VALUE = 103.621

SECOND BAR: X VALUE = 0001634
Y VALUE = 113.109

THIRD BAR: X VALUE = 0001635
Y VALUE = 139.209

FORTH BAR: X VALUE = 0001636
Y VALUE = 115.021

FIFTH BAR: X VALUE = 0001621
Y VALUE = 986.8354 AND SO ON,....

I hope I have explained better what I really need.

Thank you very much.

[Narcís]

Hi Brinet,

Yes, I understand now what you mean but what I get I think it's correct as you are populating series using those values as X values, they are not sorted but plotted at the X position corresponding to the X value you provided. To get what you request you shouldn't use those values as X values, just use them as points labels and let series automatically use sequential X values replacing points.Add() call in previous example for this:

Code: Select all

        points.Add(dslagmass, response[i][0].ToString());

Which produces the chart below. Is that what you were looking for?

SequentialXValues.jpg (89.17 KiB) Viewed 14548 times

BTW: If that's what you need then it's not necessary to set XValues.Order to none either.

[Brinet]

Thank you Narcis!

It is exactly what I need. It works now. Thank you very much.


Regards