ChartData Property

Use this property to return/set x & y data point values for all Profiles.

Syntax

[Visual Basic]
Property ChartData() As Object

[C#]
object XYChartNETCtl.ChartData

[C++]
property System::Object ^ XYChartNet::XYChartNETCtl::ChartData

Remarks

ChartData is a two-dimensional array (Number of Rows - 1, Number of Columns - 1) of double. The number of rows is the profile with the maximum NumSamples. The number of columns is 2 x NumProfiles.

Initially, all data values are 0. Two common methods to populate the ChartData array are:

Set ChartData equal to a two-dimensional array.
Read data from a CSV text file into a two-dimensional array, and then set ChartData equal to the array.

Example 1: Set ChartData equal to an array

' XYChartNETCtl1 is the name of the XY Chart NET control instance placed on the form.

Dim arrData(4, 7) As Double
Dim objDataArray As Object

arrData(0, 0) = 0
arrData(0, 1) = 0
arrData(1, 0) = -10
arrData(1, 1) = -10
arrData(2, 0) = -20
arrData(2, 1) = -20
arrData(3, 0) = -30
arrData(3, 1) = -30
arrData(4, 0) = -40
arrData(4, 1) = -40

arrData(0, 2) = 0
arrData(0, 3) = 0
arrData(1, 2) = -20
arrData(1, 3) = -10
arrData(2, 2) = -40
arrData(2, 3) = -50
arrData(3, 2) = -50
arrData(3, 3) = -60
arrData(4, 2) = -70
arrData(4, 3) = -80

arrData(0, 4) = 10
arrData(0, 5) = 0
arrData(1, 4) = 0
arrData(1, 5) = 10
arrData(2, 4) = 20
arrData(2, 5) = 20
arrData(3, 4) = 10
arrData(3, 5) = 10
arrData(4, 4) = 30
arrData(4, 5) = 30

arrData(0, 6) = 0
arrData(0, 7) = 10
arrData(1, 6) = 10
arrData(1, 7) = 50
arrData(2, 6) = 50
arrData(2, 7) = 30
arrData(3, 6) = 30
arrData(3, 7) = 80
arrData(4, 6) = 80
arrData(4, 7) = 70
       
With XYChartNETCtl1
   .NumProfiles = 4            '4 profiles to plot
   .Profile(0).NumSamples = 5  '5 xy data points for Profile 0
   .Profile(1).NumSamples = 5  '5 xy data points for Profile 1
   .Profile(2).NumSamples = 5  '5 xy data points for Profile 2
   .Profile(3).NumSamples = 5  '5 xy data points for Profile 3
   .ChartData = arrData
   .Refresh                    'Refresh required to re-generate graph with new values
End With

'Get all datapoints
objDataArray = XYChartNETCtl1.ChartData

// XYChartNETCtl1 is the name of the XY Chart NET control instance placed on the form.

double [,] arrData = new double [5, 8];
object     objDataArray;

arrData[0, 0] = 0;
arrData[0, 1] = 0;
arrData[1, 0] = -10;
arrData[1, 1] = -10;
arrData[2, 0] = -20;
arrData[2, 1] = -20;
arrData[3, 0] = -30;
arrData[3, 1] = -30;
arrData[4, 0] = -40;
arrData[4, 1] = -40;

arrData[0, 2] = 0;
arrData[0, 3] = 0;
arrData[1, 2] = -20;
arrData[1, 3] = -10;
arrData[2, 2] = -40;
arrData[2, 3] = -50;
arrData[3, 2] = -50;
arrData[3, 3] = -60;
arrData[4, 2] = -70;
arrData[4, 3] = -80;

arrData[0, 4] = 10;
arrData[0, 5] = 0;
arrData[1, 4] = 0;
arrData[1, 5] = 10;
arrData[2, 4] = 20;
arrData[2, 5] = 20;
arrData[3, 4] = 10;
arrData[3, 5] = 10;
arrData[4, 4] = 30;
arrData[4, 5] = 30;

arrData[0, 6] = 0;
arrData[0, 7] = 10;
arrData[1, 6] = 10;
arrData[1, 7] = 50;
arrData[2, 6] = 50;
arrData[2, 7] = 30;
arrData[3, 6] = 30;
arrData[3, 7] = 80;
arrData[4, 6] = 80;
arrData[4, 7] = 70;

XYChartNETCtl1.NumProfiles = 4;                //4 profiles to plot
XYChartNETCtl1.get_Profile(0).NumSamples = 5;  //5 xy data points for Profile 0
XYChartNETCtl1.get_Profile(1).NumSamples = 5;  //5 xy data points for Profile 1
XYChartNETCtl1.get_Profile(2).NumSamples = 5;  //5 xy data points for Profile 2
XYChartNETCtl1.get_Profile(3).NumSamples = 5;  //5 xy data points for Profile 3
XYChartNETCtl1.ChartData = arrData;
XYChartNETCtl1.Refresh();                      //Refresh required to re-generate graph with new values

//Get all datapoints
objDataArray = XYChartNETCtl1.ChartData;

// XYChartNETCtl1 is the name of the XY Chart NET control instance placed on the form.

double          arrData __gc[,] = new double __gc[5, 8];
System::Object* objDataArray;

arrData[0, 0] = 0;
arrData[0, 1] = 0;
arrData[1, 0] = -10;
arrData[1, 1] = -10;
arrData[2, 0] = -20;
arrData[2, 1] = -20;
arrData[3, 0] = -30;
arrData[3, 1] = -30;
arrData[4, 0] = -40;
arrData[4, 1] = -40;

arrData[0, 2] = 0;
arrData[0, 3] = 0;
arrData[1, 2] = -20;
arrData[1, 3] = -10;
arrData[2, 2] = -40;
arrData[2, 3] = -50;
arrData[3, 2] = -50;
arrData[3, 3] = -60;
arrData[4, 2] = -70;
arrData[4, 3] = -80;

arrData[0, 4] = 10;
arrData[0, 5] = 0;
arrData[1, 4] = 0;
arrData[1, 5] = 10;
arrData[2, 4] = 20;
arrData[2, 5] = 20;
arrData[3, 4] = 10;
arrData[3, 5] = 10;
arrData[4, 4] = 30;
arrData[4, 5] = 30;

arrData[0, 6] = 0;
arrData[0, 7] = 10;
arrData[1, 6] = 10;
arrData[1, 7] = 50;
arrData[2, 6] = 50;
arrData[2, 7] = 30;
arrData[3, 6] = 30;
arrData[3, 7] = 80;
arrData[4, 6] = 80;
arrData[4, 7] = 70;

XYChartNETCtl1->NumProfiles = 4;             //4 profiles to plot
XYChartNETCtl1->Profile[0]->NumSamples = 5;  //5 xy data points for Profile 0
XYChartNETCtl1->Profile[1]->NumSamples = 5;  //5 xy data points for Profile 1
XYChartNETCtl1->Profile[2]->NumSamples = 5;  //5 xy data points for Profile 2
XYChartNETCtl1->Profile[3]->NumSamples = 5;  //5 xy data points for Profile 3
XYChartNETCtl1->ChartData = arrData;
XYChartNETCtl1->Refresh();                   //Refresh required to re-generate graph with new values

//Get all datapoints
objDataArray = XYChartNETCtl1->ChartData;

Example 2: Read data from a CSV text file into an array, and then set ChartData equal to the array

' XYChartNETCtl1 is the name of the XY Chart NET control instance placed on the form.

Dim FilePathAndName As String
Dim iFileNumber As Integer
Dim Row As Integer, Col As Integer
Dim DataArray(,) As Double

'Filepath below assumes source file is in the same folder as the application
FilePathAndName = ".\" + CSVFileName
iFileNumber = FreeFile()
Microsoft.VisualBasic.FileOpen(iFileNumber, FilePathAndName, OpenMode.Input)

With XYChartNETCtl1
   .NumProfiles = 5
   .Profile(0).NumSamples = 5  '5 xy data points for Profile 0
   .Profile(1).NumSamples = 8  '8 xy data points for Profile 1
   .Profile(2).NumSamples = 5  '5 xy data points for Profile 2
   .Profile(3).NumSamples = 4  '4 xy data points for Profile 3
   .Profile(4).NumSamples = 4  '4 xy data points for Profile 4

   'Re-dimension the data array; Profile 1 has the maximum number of samples
   ReDim DataArray(.Profile(1).NumSamples - 1, 2 * .NumProfiles - 1)

   'Populate the data array.  The CSV file must contain 8 x & y data values for each profile.
   'Dummy values are used for those profiles not requiring 8 samples.
   For Row = 0 To .Profile(1).NumSamples - 1
      For Col = 0 To 2 * .NumProfiles - 1
         Microsoft.VisualBasic.Input(FileNumber, DataArray(Row, Col))
      Next Col
   Next Row

   .ChartData = DataArray
   .Refresh                     'Refresh required to re-generate graph with new values
End With
Microsoft.VisualBasic.FileClose(iFileNumber)

// XYChartNETCtl1 is the name of the XY Chart NET control instance placed on the form.

const int myNumSamples = 8;
const int myXYSet = 10;

System.IO.StreamReader sr;
string                 input;
string []              inputSplit;
string                 delimiterString = ",";
char []                delimiter = delimiterString.ToCharArray();
int                    Row = 0;
int                    Col;
double [,]             DataArray = new double [myNumSamples, myXYSet];

//Filepath below assumes source file is in the same folder as the application
sr = System.IO.File.OpenText(".\\ChartData.csv");

//Populate the data array.  The CSV file must contain 8 x & y data values for each profile.
while (((input = sr.ReadLine())!= null) && (Row < myNumSamples))
{
    inputSplit = input.Split (delimiter, myXYSet);
    for (Col = 0; Col < myXYSet; Col++)
    {
       DataArray[Row, Col] = Double.Parse(inputSplit[Col]);
    }
    Row++;
}
sr.Close();

XYChartNETCtl1.NumProfiles = 5;
XYChartNETCtl1.get_Profile(0).NumSamples = 5;  //5 xy data points for Profile 0
XYChartNETCtl1.get_Profile(1).NumSamples = 8;  //8 xy data points for Profile 1
XYChartNETCtl1.get_Profile(2).NumSamples = 5;  //5 xy data points for Profile 2
XYChartNETCtl1.get_Profile(3).NumSamples = 4;  //4 xy data points for Profile 3
XYChartNETCtl1.get_Profile(4).NumSamples = 4;  //4 xy data points for Profile 4

XYChartNETCtl1.ChartData = DataArray;
XYChartNETCtl1.Refresh();

// XYChartNETCtl1 is the name of the XY Chart NET control instance placed on the form.

const int myNumSamples = 8;
const int myXYSet = 10;

System::IO::StreamReader* sr;
String*                   input;
String*                   inputSplit[];
String*                   delimiterString = S",";
Char                      delimiter[] = delimiterString->ToCharArray();
int                       Row = 0;
int                       Col;
double                    DataArray __gc[,] = new double __gc[myNumSamples, myXYSet];
int                       myFontStyle = (int)Drawing::FontStyle::Bold | (int)Drawing::FontStyle::Italic;
Drawing::Font*            myFont = new Drawing::Font("Arial", 16, (Drawing::FontStyle)myFontStyle);

//Filepath below assumes source file is in the same folder as the application
sr = System::IO::File::OpenText(".\\Chart Data.csv");

//Populate the data array.  The CSV file must contain 8 x & y data values for each profile.
while (((input = sr->ReadLine())!= 0) && (Row < myNumSamples))
{
    inputSplit = input->Split (delimiter, myXYSet);
    for (Col = 0; Col < myXYSet; Col++)
    {
       DataArray[Row, Col] = Double::Parse(inputSplit[Col]);
    }
    Row++;
}
sr->Close();

XYChartNETCtl1->NumProfiles = 5;
XYChartNETCtl1->Profile[0]->NumSamples = 5;  //5 xy data points for Profile 0
XYChartNETCtl1->Profile[1]->NumSamples = 8;  //8 xy data points for Profile 1
XYChartNETCtl1->Profile[2]->NumSamples = 5;  //5 xy data points for Profile 2
XYChartNETCtl1->Profile[3]->NumSamples = 4;  //4 xy data points for Profile 3
XYChartNETCtl1->Profile[4]->NumSamples = 4;  //4 xy data points for Profile 4

XYChartNETCtl1->ChartData = DataArray;
XYChartNETCtl1->Refresh();