Serialize scattergraph

[virgule]

Hello,

It try to serialize a scattergraph, to save all the properties modified by the user.

I have some returned errors that say a lot of parts of properties are not serializable. I try with a visual studio textbox and it works fine.

Is there a solution to serialize a scattergraph ?

Regards

[D-Cubed]

Hi, virgule

In the future, please post exceptions that you are seeing so it is easier for other forum users to confirm whether they are seeing the same error as you. I tried doing the following in the constructor of my main form, and I think I reproduced the error you are reporting:

var stream = File.Open(XmlFilePath, FileMode.Truncate, FileAccess.ReadWrite, FileShare.ReadWrite);
var serializer = new XmlSerializer(typeof(ScatterGraph));
serializer.Serialize(stream, this._scatterGraph);

The exception that is thrown is as follows:

System.InvalidOperationException
HResult=-2146233079
Message=Cannot serialize member 'System.ComponentModel.Component.Site' of type 'System.ComponentModel.ISite', 
see inner exception for more details.
Source=System.Xml

The ScatterGraph class derives from System.ComponentModel.Component which contains this ISite member, which is not serializable.

I would recommend first identifying data on the scatter graph that is of interest to you. After you have aggregated the pieces of data you want, create a separate class which holds the data. When you want to serialize the scatter graph, create an instance of this data class and serialize that instead. 

[virgule]

Hi, D_Cubed

Sorry for the post exceptions and thank for your reply.

Can you give an example of aggregated pieces of data and how to create a separate class which holds the data ?

(An example of the scatterplot or axes class wich are implemented in the primary class scattergraph)

Regards

[D-Cubed]

Hi, virgule

You will need to choose what parts of the graph you are interested in serializing. I have attached a simple example that shows a serialization model class I created for use in serialization.

The serialization model looks like the following:

public class ScatterGraphSerializationModel
{
    public ScatterGraphSerializationModel()
        : this(new ScatterGraph())
    {
    }

    public ScatterGraphSerializationModel(ScatterGraph scatterGraph)
    {
        // Store the scatter graph's identifier.
        Name = scatterGraph.Name;

        // Store the first scatter graph x-axis mode.
        XAxisMode = scatterGraph.XAxes[0].Mode;

        // ...
        // Store more properties.
        // ...

        // Store every plot's x- and y-data.
        foreach (var plot in scatterGraph.Plots)
        {
            Plots.Add(new XYData { XValues = ((ScatterPlot)plot).GetXData(), YValues = ((ScatterPlot)plot).GetYData() });
        }
    }

    public string Name { get; set; }

    public AxisMode XAxisMode { get; set; }

    // ...
    // Add more public properties to the serializable model.
    // ...

    public List<XYData> Plots
    {
        get
        {
            if (_plots == null)
                _plots = new List<XYData>();

            return _plots;
        }
        set { _plots = value; }
    }

    public class XYData
    {
        public double[] XValues { get; set; }
        public double[] YValues { get; set; }
    }

    private List<XYData> _plots;
}

The example model stores the name of the graph, the mode for the x-axis, and the plot data on the graph. You will need to create your own model of data you wish to serialize.

Thanks,