Chart in Grid's column

Vaadin 6 / 7 / 8
1

Hello,everybody.

I want repeat this
example with stock chart in Grid Column
, but can’t find a sourcecode of this one.
Can you help me?

2

You can find the SparklineRenderer here:
https://vaadin.com/directory#!addon/grid-renderers-collection-for-vaadin7

3

Thanks, i find it too…

4

I met a difficulty with SparklineRenderer. This class extends Number type. In Demo about SparklineRenderer, fields in Grid created manually with same type. But when i try using SparklineRenderer with DB table i get error that Column’s model type not compatible with Number
type. I use postgresql and used different types for this column : Double precision , Numeric
, String(like array of numeric).

Can you tell me about compatibility Number type and any DB type, or about converting between this types?

5

You can convert values in any grid column by setting a converter: Grid.getColumn().setConverter()

6

Which converter need in this case?

7

You’ll need to make your own. Don’t worry, it’s a simple interface :slight_smile: You don’t even need to implement the convertToModel method, since you’ll only display data.

8

Thanks, but i solved my problem with next approach : i use Sparklines class(it’s component) and Table. And i have need to me result.

9

My example
27208.png