How can I access content of a XamGrid Column

How can I access content of a XamGrid Column

I have created a XamGrid in a silverlight page in WCF. in which I have a column called "status" . It has three values which are : complete, start, ongoing. for these values I want to set add an image beside the text. How can I access XamGrid column contents from Code behind. I have used something like:

XamGrid1.column.[2].key 

but it is returning me the column name. and I want the value in that column.. Please someone help me do this?

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