soo i have this record wich sums his childs $ items and i want everytime i edit insert or delete a row in the child grid the parent row recalculate the $ with out lossing the gridviewstate.
the main grid $ field is not a calculated colum its a mysql qury sum. soo i tried the:

<?php
   $grid->KeepGridResfresh=true;
   $grid->KeepViewState = true;
   $grid->KeepRowStateOnRefresh = true;
?>
grid.refresh();
grid.commit();

but the detail grid get closed.
if i just call grid.refresh(); the parent row wont recalculate.
thanks!!!

I believe you need both.
grid.refresh(); // tell grid to refresh
grid.commit(); // commit grid to server

I have it like that and it does not recalculate the parent row.

If you do a page reload afterwards, does the correct calculation occur?

shure i have test with.
document.forms[0].summit;
after the insert and edit.
and it do the main form postback then the page reolads but I lose grid state.

Are you using sessions? The grid will use sessions to keep gridview state. I'm not sure if the expanded row is part of the view state though.
You may need to use more javascript to keep the grid row in expanded state if the sessioning does not work.