Definition

string onNeedsFormat(number value, EJSC.StringFormatter formatter)

Description

This event (when assigned) will fire every time the formatter needs to process a value.  The string returned from this event will be displayed in place of the value in the chart.

Example

>> Adjust all values by 100

var chart = new EJSC.Chart("myChart");

    chart.x_axis_formatter = new EJSC.StringFormatter({

       onNeedsFormat: function(value, formatter) {

               return value + 100;

       }

    });