Make a data grid view row selected on Treeview selection

Question

Hi all i am having a requirement in such a way that on selecting a particular node of treeview i would like to make a data grid view row selected


Here i am having Root element as One If i select that i would like to make the first row of data grid view as selected. Like that if i select Child node i would like to make the 2nd row as selectable can any one help me