Copy from excel and paste into WPF DatagridTempate column

I have a WPF DataGrid with DataGridTemplateColumns, when I select rows from excel and use Ctrl+C, and then in DataGrid Ctrl+V, no data is pasted. If I change columns to DataGridTextColumn then copy and paste works fine. What can I do to make work copy & paste with DataGridTemplateColumn? Also when I set ClipboardContentBinding="{Binding FirstName}" for the template column, Null Refrence exception is thrown. 

Can anyone help me please?