Converters in Codebehind in silverlight

[Pranavi]

I have followed below link ;

http://www.telerik.com/community/forums/silverlight/gridview/codebehind-binding-with-converter-in-c.aspx

GridViewDataColumn column = new GridViewDataColumn();

column.DataMemberBinding = new Binding("Body"){Converter = new BodyConverter()};           

this.MailsGrid.Columns.Add(column);

in Body filed I have xml data.so using converter I am got data... like : Hi , this is ranjit. I have brought assemble items on 01-01-2013.

But this is  adding as a new  column to radgridview. I need to assign this converter that is already added to the RadGridView.