I've worked with styles before, like in this topic (http://help.infragistics.com/Help/NetAdvantage/WPF/2009.2/CLR3.5/html/xamData_Changing_the_Record_Hover_Color.html)
but examples doesn't help me to find the properties I need to modify in order to change the background color for these selected items:
Pd: Plese, help me with the numbers (1 and 2) in your help. Thanks!
Please refer to the following post that presents in details how to implement it:
http://blogs.infragistics.com/blogs/alex_fidanov/archive/2010/01/12/howto-using-wpf-converters-to-style-the-xamdatagrid.aspx
Sam