using java data source library with annotated time line graph

[Suresh]

Hi I am using java data source library and i have confusion
data = new DataTable();
ArrayList cd = new ArrayList();
cd.add(new ColumnDescription("Date Time",
ValueType.DATETIME, "Date Time"));
cd.add(new ColumnDescription("column1", ValueType.NUMBER,
"column1"));
cd.add(new ColumnDescription("column2", ValueType.NUMBER,
"column2"));

i am doing the annotated timeline and when i am adding rows i am
having hard time because some of the data points are not having values
for column1.So how i can skip the data in the row and add in column2.


I would appreciate your help.

Suresh

[Bug Chart]

Hi,

just add dummy data for column1, or null.

HTH

BugChart

[Suresh]

i tried row.addCell(null); this but it is showing a compilation
error.
Adding a dummy data is a false approach as it would mislead the graph.

i feel funny and baffled because i am able to skip the data using
javascript as shown below by not passing anything for column1 but
could not find any answer using java data source library.

data.addColumn('date', 'Date');
data.addColumn('number', 'Sold Pencils');
data.addColumn('number', 'Sold Pens');

data.addRows([
[new Date(2008, 1 ,1), 30000,200],
[new Date(2008, 1 ,2), ,300],
[new Date(2008, 1 ,3), 55022,400],
[new Date(2008, 1 ,4), ,450],
]);

[Suresh]

i also tried the below option by passing null and i am getting Type
missmatch exception.Is there a way to set an emty cell using java.

data.addRowFromValues(,,null,);

[PASUPULETI SURESH]

I am able to overcome the problem.

[kenkuyo]

how did u do it?

On Nov 11, 11:58 am, PASUPULETI SURESH <suresh.pasupul...@gmail.com>
wrote:

> I am able to overcome the problem.
>

[PASUPULETI SURESH]

Keep the data.addRowformatValues in the try catch as below.Hope this helps.

 try {

                         data.addRowFromValues(dt.getCalendar(),null)

                    } catch(TypeMismatchException tm){

                    System.out.println("i >"+i);

                    }

Thanks

Suresh

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