Displaying Parent and child records in Form

Hi Guys,

I created a form that has a parent and child data source. I already set the child join source and link type. And set necessary relationships in the table. I can get the correct records in the grids/form. But, when I select a record in the child grid, the selection in parent also changed. Let's say I select the parent record line 3 in the grid, when I select the child record 5, the selection from parent will move also to line 5.

Any ideas?

thanks