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KoolChart provides the event handling features that enables you to create a custom event handler or to use the default event handling function.

This sample column chart is to show the default event handling function, which displays Tooltips when users mouse over the column. If you want to enable the default mouse over function, then you must set the value of the showDataTips attribute to "true" ( showDataTips = "true" ).

...
<Column2DChart ... showDataTips="true" >
...
</Column2DChart>
...

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