Hi all,
Good day. Have issue on the Laszlo graph.
Following code will draw a chart (Openlaszlo ver 4), while click on the
button, a new data node "entry" will in insert into the dataset. How can
I make the graph auto redraw once the data node is inserted??
I try following method (after reading the code) but no luck.
chart1.renderPlotArea();
chart1.dataload();
chart1.render();
Cheers,
James
------------------------------------------------------------------------
---
<canvas height="900" width="600" debug="true">
<include href="charts/styles/chartstyle.lzx"/>
<include href="charts/addon/zoomarea.lzx"/>
<dataset name="gridcpu1hourhistory">
<entries>
<entry timestamp="1" a="40" b="4"
c="35" d="25" />
<entry timestamp="2" a="40" b="6"
c="55" d="50" />
<entry timestamp="3" a="40" b="6"
c="75" d="66" />
<entry timestamp="4" a="40" b="6"
c="50" d="35" />
<entry timestamp="5" a="40" b="6"
c="60" d="45" />
<entry timestamp="6" a="50" b="10"
c="95" d="88" />
<entry timestamp="7" a="50" b="10"
c="100" d="100" />
<entry timestamp="8" a="40" b="6"
c="45" d="30" />
<entry timestamp="9" a="40" b="6"
c="50" d="35" />
<entry timestamp="10" a="40" b="6"
c="50" d="40" />
</entries>
</dataset>
<!-- LEGEND ASSOCIATED WITH THE CHART
-->
<legend name="legendbox"
chart="${chart1}"
legendFont="serif"
legendFontsize="14"
legendborder="false"
x="600"
y="350"
direction="vertical">
<handler name="onitemmouseclick"
args="item">
var topseries =
this.getChartInstance().getDataSeries();
topseries.getDataSeries(item.identifier).enabled = item.linevisible;
this.getChartInstance().renderPlotArea();
item.linevisible
= !item.linevisible;
</handler>
</legend>
<linechart id="chart1" y="60" width="300" height="150"
datapath="gridcpu1hourhistory:/entries">
<dataseries >
<datacolumn name="x"
columndatapath="entry/@timestamp" datatype="number"/>
<dataseries label="wins">
<datacolumn
name="y" columndatapath="entry/@a"
datatype="number"/>
<datacolumn
name="datatip" columndatapath="record"/>
</dataseries>
<dataseries label="losses">
<datacolumn
name="y" columndatapath="entry/@b"
datatype="number"/>
<datacolumn
name="datatip" columndatapath="record"/>
</dataseries>
<dataseries label="losses">
<datacolumn
name="y" columndatapath="entry/@c"
datatype="number"/>
<datacolumn
name="datatip" columndatapath="record"/>
</dataseries>
<dataseries label="losses">
<datacolumn
name="y" columndatapath="entry/@d"
datatype="number"/>
<datacolumn
name="datatip" columndatapath="record" />
</dataseries>
<datacolumn name="datalabels"
columndatapath="record/@attendance"/>
</dataseries>
<horizontalaxis name="haxis" interval="2"
type="linear"
columnName="x" />
<verticalaxis name="vaxis" title=""
interval="20" type="linear" columnName="y"
titleLocation="low"
minorTickEnabled="false" />
<handler name="ondata">
Debug.write('abc');
</handler>
</linechart>
<button>Add data
<handler name="onclick">
var currdp = new LzDatapointer();
currdp.setXPath('gridcpu1hourhistory:/entries/entry[1]');
while(currdp.selectNext());
currdp.addNode("entry", "",
{timestamp:"11", a:"40", b:"4", c:"35", d:"25"});
//chart1.renderPlotArea();
//chart1.dataload();
//chart1.render();
</handler>
</button>
</canvas>
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