Can you set Column Chart Colors depending upon value

[pablosn]

Is it possible to change the columns color depending upon the value (e.g. if less than 0 then set column color to red)?

Thanks in advance.

[vishal.chawathe]

Hi even I am looking to change the color dynamically based on the user click..

Also is dragging on charts possible..just to select some bars in the column chart...



Thanks

[pablosn]

So far as far as i can tell no it's not possible. The charting is a third party component and the API is here:

http://developer.yahoo.com/yui/charts/

There are however other options for charting

open flash charts 2 http://teethgrinder.co.uk/open-flash-chart-2/

flot http://code.google.com/p/flot/
and ext variety
http://code.google.com/p/extflot/

Hope all this helps.

[GeorgeHernandez]

Assuming Ext JS 4.x:

series: [{
    type: 'column',
    ...
    yField: 'yField',
    renderer: function(sprite, record, attr, index, store) {
        var value = record.get('yField');
        var color;
        if (value < 70) {
            color = 'rgb(255, 0, 0)';
        } else {
            color = 'rgb(0, 0, 255)';
        }
        return Ext.apply(attr, {
            fill: color
        });
    }
}]