Assign task to double click action on row in grid

I would like to execute a task when a row in the grid is double clicked.

We have implemented a sort of wizzard functionality. The user is presented a grid where the user select a row and must click the ‘next’ button to see the rows for the selected parent:

This wizzard has 6 levels to complete the selection.

The selection process would be easier and more intuitive if the user can double click the row and the task ‘next’ is executed.