Grid view with checkbox, dropdown and button

Question

Hi all

I need to get the output of a row in sub grid view if i select a row from main grid. for example when i choose the select item in drop item in a first row which generated from a table(grid1),the click the show button the output of the selected row will display in sub grid(grid2).

I have attached my design file for your convenience

Please let me know you need more clear?