wpf - datarowview binding to combobox datatemplate -

I have a wpf application using mvvm I am trying to bind my data into a comb box, There is a database of textbooks. How can I specify binding on these text blocks to force datarowview.item ["columnname"], what I am trying to achieve is to tie 2 columns of my datatel into a multicolm combo box

It turns to us that you can tie the names of columns like an object For public property how are you blind to understand WPF Smart Multi The clever.