Introducing the IlvXMLChartData Class

Options > Charts > Using the Charts Library > The IlvXMLChartData Class > Introducing the IlvXMLChartData Class

The class IlvXMLChartData derives from IlvAbstractChartData and reads one or several data sets from an XML file. The XML file should conform to the following DTD:

<?xml version="1.0" encoding="UTF-8"?>

<!ELEMENT chartData (data+)>

<!ATTLIST chartData xmlns:ilvchart CDATA #FIXED

"http://www.roguewave.com/products/jviews/chart"

version CDATA #REQUIRED>

<!ELEMENT data (series+)>

<!ATTLIST data xSeries IDREF #IMPLIED>

<!ELEMENT series ((value | valuesList)*, property*)>

<!ATTLIST series dateFormat CDATA #IMPLIED

type (double | date) #REQUIRED

id ID #REQUIRED>

<!ELEMENT value (#PCDATA)>

<!ELEMENT valuesList (#PCDATA)>

<!ATTLIST valuesList delimiter CDATA #IMPLIED>

<!ENTITY % propertyExt "">

<!ELEMENT property (#PCDATA %propertyExt;)*>

<!ATTLIST property name CDATA #REQUIRED

value CDATA #IMPLIED>

<!ELEMENT seriesRef EMPTY>

<!ATTLIST seriesRef ref IDREF #REQUIRED>

For example, assuming that a chart contains three data sets: two (DS_A and DS_B) which do not use xvalues series, and one (DS_C) which uses a specific series for its abscissa, the resulting XML file is:

<pre>

<?xml version="1.0" encoding="UTF-8"?>

<data>

</series>

</series>

</data>

</series>

</series>

</data>

</chartData>

</pre>

Published date: 05/24/2022

Last modified date: 02/24/2022