try out the faq
http://code.google.com/docreader/#p=gwt-google-apiss=gwt-google-apist=VisualizationFAQ
On Tue, Jan 19, 2010 at 4:37 PM, Ramya Devi Dharmarajan
dramyadevi2...@gmail.com wrote:
Hi,
I have a problem in my below code.Please share your thoughts.This is
Urgent.
Code :
*Sample.java*
TimeLine timeLine =
*new* TimeLine();
VisualizationUtils.*loadVisualizationApi*(timeLine, AnnotatedTimeLine.
*PACKAGE*);
widget = timeLine.getAnnotatedChart();
*TimeLine.java:*
*
public
* Widget getAnnotatedChart(){
widget = *new* AnnotatedTimeLine(getData(), getOption(), 700px, 240px);
*return* widget;
}
*private* AnnotatedTimeLine.Options getOption()
{
AnnotatedTimeLine.Options options = AnnotatedTimeLine.Options.*create*();
options.setDisplayAnnotations(
*true*);
*return* options;
}
*private* AbstractDataTable getData()
{
DataTable data = DataTable.*create*();
data.addColumn(AbstractDataTable.ColumnType.
*DATE*, Date);
data.addColumn(AbstractDataTable.ColumnType.
*NUMBER*, First Label);
return data;
}
But i got the below exception.
Uncaught exception escaped : -
[ERROR] Uncaught exception escaped
com.google.gwt.core.client.JavaScriptException: (TypeError):
'$wnd.google.visualization.DataTable' is null or not an object
number: -2146823281
description: '$wnd.google.visualization.DataTable' is null or not an
object
at com.google.gwt.visualization.client.DataTable$.create(Native Method)
at org.soh.doh.ui.client.util.TimeLine.getData(TimeLine.java:39)
at org.soh.doh.ui.client.util.TimeLine.getAnnotatedChart(TimeLine.java:28)
at
org.soh.doh.ui.client.gui.panel.PublicVisualization.EDVisitsbySyndrome.setTimeSeriesLine(EDVisitsbySyndrome.java:144)
at
org.soh.doh.ui.client.gui.panel.PublicVisualization.EDVisitsbySyndrome.init(EDVisitsbySyndrome.java:79)
at org.soh.doh.ui.client.mvc.CenterView.handleEvent(CenterView.java:69)
at
com.extjs.gxt.ui.client.mvc.Controller.forwardToView(Controller.java:90)
at
org.soh.doh.ui.client.mvc.CenterController.handleEvent(CenterController.java:111)
at com.extjs.gxt.ui.client.mvc.Dispatcher.dispatch(Dispatcher.java:236)
at com.extjs.gxt.ui.client.mvc.Dispatcher.dispatch(Dispatcher.java:164)
at com.extjs.gxt.ui.client.mvc.Dispatcher.dispatch(Dispatcher.java:174)
at com.extjs.gxt.ui.client.mvc.Dispatcher.forwardEvent(Dispatcher.java:81)
at org.soh.doh.ui.client.mvc.WestView$4.handleEvent(WestView.java:264)
at org.soh.doh.ui.client.mvc.WestView$4.handleEvent(WestView.java:1)
at
com.extjs.gxt.ui.client.event.BaseObservable.callListener(BaseObservable.java:176)
at
com.extjs.gxt.ui.client.event.BaseObservable.fireEvent(BaseObservable.java:96)
at com.extjs.gxt.ui.client.widget.Component.fireEvent(Component.java:444)
at
com.extjs.gxt.ui.client.widget.Component.onBrowserEvent(Component.java:762)
at com.google.gwt.user.client.DOM.dispatchEventImpl(DOM.java:1320)
at com.google.gwt.user.client.DOM.dispatchEventAndCatch(DOM.java:1299)
at com.google.gwt.user.client.DOM.dispatchEvent(DOM.java:1262)
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