使用另一列中的值填充DataGrid的ComboBox

I am an experienced user of Winforms and I am now playing with WPF, but I am struggling a bit. I have a datagrid with 2 columns. The first column is a DataGridTextColumn which is bound to the "Name" property of my object. The second column is bound to the "Power" property of my object.I am an experienced user of Winforms and I am n