Moving Datagrid’s row up and down in WPF

Question

Helo everyone

 

I am on a WPF project and I have DataTable binded with Datagrid with multiple items selection property enabled.

 

I want to allow user to move the selected items up/down either by drag n drop or by up/down button, most probably by up/down button.

 

I had searched a lot but no luck. How can I achieve this?

 

Thanks

Devendra