Error - Highlight polygon when item roll over on datagrid

[Anonymous User]

Original User: MayMay

I try to highlight a polygon when item roll over on the datagrid and unhighlight it when item roll out.  But keep getting error message on onItemRollOut function.
I attached the modify code and message here.  Hope someone can give me so ideas.

Thank you.

[Anonymous User]

Original User: rscheitlin

May Jeff,

  What is it that is null?

[Anonymous User]

Original User: MayMay

Error message show up if I add following line to onItemRollOut function.
findGraphicByAttribute(event.itemRenderer.data.oid).symbol = resultsSymbol;

Do you know any other way try to highlight polygon on datagrid when item roll over?

Thank you.

[RobertScheitlin__GISP · Accepted solution]

May Jeff,

   Is the item renderer null? Your a developer right? You should be able to debug what item is null.