Cannot load exported chart

[Christopher]

Here is the code
http://www.teechart.net/support/viewtop ... 410#p64410

Yest that code works, and my code most of the times also works, but sometimes not and that is what I'm try to know why...

Just by looking at the *.ten file, which I have done, I'm afraid I am unable to extrapolate the code that created it. Without the code that created it, I cannot arrive at any definitive solution to the problem. I'm sure you understand the position I am in.

All I can suggest is that you try to work on a small code snippet which can create a *.ten file that exhibits this erroneous behaviour. I'm sorry I can't immediately resolve this problem for you.

[acastro]

It is difficult, because I cannot reproduce it when I want...

When it fails it gives this error

{"Index was out of range. Must be non-negative and less than the size of the collection.\r\nParameter name: index"}

Can you see what index is exactly out of range? It could be a clue...

Thanks

[Christopher]

Can you see what index is exactly out of range? It could be a clue...

As I said here:

A custom axis is deserialized but is not being correctly placed into the custom axes collection (Axis.Custom), hence the error.

Are you try to serialize a chart with a custom axis which is NOT added into the Axis.Custom collection? That's what might be happening. I see that the following code gives a similar error:

Code: Select all

    private void InitializeChart()
    {
      Line line = new Line(tChart1.Chart);
      line.FillSampleValues();

      Axis axis = new Axis(tChart1.Chart);
      //tChart1.Axes.Custom.Add(axis); //with this line commented, an error
      axis.Horizontal = false;
      axis.RelativePosition = 30;

      line.CustomVertAxis = axis;
    }

    private void button1_Click(object sender, EventArgs e)
    {
      MemoryStream stream = new MemoryStream();
      tChart1.Export.Template.Save(stream);

      tChart1.Clear();
      MessageBox.Show("Clear");

      stream.Position = 0;
      tChart1.Import.Template.Load(stream);
    }

[acastro]

A custom axis is deserialized but is not being correctly placed into the custom axes collection (Axis.Custom), hence the error.

So only one customaxis is in the .ten file?

Are you try to serialize a chart with a custom axis which is NOT added into the Axis.Custom collection? That's what might be happening. I see that the following code gives a similar error:

I don't think it, al least with the code of generating it it is impossible.
But when I delete the custom axis I do this. Is it right?

Code: Select all

chart.Axes.Custom.Clear();
for (int i = 0; i < chart.Series.Count; i++)
{
                    chart.Series[i].CustomVertAxis = chart.Axes.Left;
}

[Christopher]

So only one customaxis is in the .ten file?

I don't know, as the code throws an exception on the first custom axes, I don't know how many more there are. I do know that all the series have an object assigned to CustomVertAxis, but I don't know if it is a default axis or a custom axis.

I don't think it, al least with the code of generating it it is impossible.

Okay.

But when I delete the custom axis I do this. Is it right?

No, it is not. You should do this:

Code: Select all

    private void InitializeChart()
    {
      tChart1.Aspect.View3D = false;
      Line line = new Line(tChart1.Chart);
      line.FillSampleValues();

      Axis axis = new Axis(tChart1.Chart);
      tChart1.Axes.Custom.Add(axis);
      axis.Horizontal = false;
      axis.RelativePosition = 30;

      line.CustomVertAxis = axis;
    }

    private void button1_Click(object sender, EventArgs e)
    {
      tChart1.Axes.Custom.Clear();
      tChart1[0].CustomVertAxis = null;
      tChart1[0].VertAxis = VerticalAxis.Left;
    }

Maybe the series with an object assigned to CustomVertAxis I mentioned above are due to your erroneous assignment of the CustomVertAxis to a default axis.

[acastro]

Ok I changed it, I will see it the problem doesn't reproduce again.
Thanks a lot

[Christopher]

Ok I changed it, I will see it the problem doesn't reproduce again.
Thanks a lot

I'm very glad to hear it

You're welcome!

[acastro]

The error didn't appear again in a lot of time. But last days I have been adding the pagescroller and now the error has come back again.


The error message is the same but perhaps it is related to other issue. Could you see it?



http://193.145.251.126/pnp/files/gqjsivcOH/error.ten

Thanks

[Christopher]

The error message is the same but perhaps it is related to other issue. Could you see it?

What I can see is that you have two Custom Axes in the CustomAxes collection (Axes.Custom) but have a third Custom Axis which is not in it. It is this third custom axis which has not been added to the CustomAxes collection which is causing the problem.

[acastro]

I check it just before save it in "chart.Axes.Custom.Count" and it says 2. Where can find that third axis?

Thanks

[Christopher]

I check it just before save it in "chart.Axes.Custom.Count" and it says 2. Where can find that third axis?

I don't know. I'm afraid I do not have access to the code that produced the *.ten file, and I cannot see from debugging the *.ten file from where that third axis comes from.

Can you please give me the code that produces the *.ten file? That way I will be able to help you further.

[acastro]

I have found if I comment this code it doesn't happens:

Code: Select all

 
if (pagescrolleractivated)
            {

                Steema.TeeChart.Axis axis = null;
                if (graph.scale.mode == Entities.Scale.MULTIPLE)
                {
                    if (graph.scale.current >= 0)
                    {

                        axis = chart.Series[graph.scale.current].CustomVertAxis;
                        chart.Series[graph.scale.current].CustomVertAxis = null;
                        chart.Series[graph.scale.current].VertAxis = Steema.TeeChart.Styles.VerticalAxis.Left;
  
                    }
                }

                for (int i = 0; i < chart.Tools.Count; i++)
                {
                    if (chart.Tools[i].GetType().Name.Equals("ScrollPager"))
                    {
                        //((ScrollPager)chart.Tools[i]).Series = null;
                        ((ScrollPager)chart.Tools[i]).SubChartTChart.Clear();

                        ((ScrollPager)chart.Tools[i]).SubChartTChart.Legend.Visible = false;
                        for (int j = 0; j < chart.Series.Count; j++)
                        {
                            if (chart.Series[j].Count > 0)
                                ((ScrollPager)chart.Tools[i]).Series = chart.Series[j];
                        }
                    }
                }



                if (graph.scale.mode == Entities.Scale.MULTIPLE)
                {
                    if (graph.scale.current >= 0)
                    {

                        chart.Series[graph.scale.current].CustomVertAxis = axis;
                    }
                }

This code is for update the series of the pagescroller when the user has changed the values. I have to quit the custom axis, and put it again after add de series as you said in this post http://www.teechart.net/support/viewtop ... 108#p65108

[Christopher]

I have found if I comment this code it doesn't happens:

I'm sorry, but that code snippet is insufficient for me to diagnose what the problem could be.

Would you be so kind as to give me a more complete example of how the erroneous *.ten file is created?

[acastro]

With more code I think it would be more difficult...

I have find if I run this code to refresh the series it save it in bad way, if I don't run this code it saves and open without problems...

Code: Select all

                
for (int i = 0; i < chart.Tools.Count; i++)
                {
                    if (chart.Tools[i].GetType().Name.Equals("ScrollPager"))
                    {

                        ((ScrollPager)chart.Tools[i]).SubChartTChart.Clear();

                        ((ScrollPager)chart.Tools[i]).SubChartTChart.Legend.Visible = false;
                        for (int j = 0; j < chart.Series.Count; j++)
                        {
                            if (chart.Series[j].Count > 0)
                                ((ScrollPager)chart.Tools[i]).Series = chart.Series[j];
                        }
                    }
                }

[Christopher]

I have find if I run this code to refresh the series it save it in bad way, if I don't run this code it saves and open without problems...

Okay. How can I be of help here? I'm afraid I cannot tell you why one of your code snippets works and one of them doesn't just by looking at it. Without being able to run those code snippets in a broader code context I cannot diagnose exactly what the problem is, I'm sorry.