custome ListGrid row editor

[7219]

Hello,
I want to use a ListGrid to achieve the functionality at http://taskmgtsystem.com/diary2/GwtDiary.html
when you double click a row a gwt Panel replaces the GridList row with gwt components
How can i achieve this functionality with ListGrid ? is there another smartGWT component that does this?

thanks

[7219]

So we used the ListGrid with a date and text fields. we registered an editor for each ListGridField as in the smartGWT showcase grid examples.
we want to achieve the following functionality with ListGridField editors:

1- we need to add ok and cancel buttons under each ListGrid row in editing mode . pressing ok should update row data and pressing cancel button should return current row to read only mode without updating data even if we made changes to Fields values before pressing cancel.
2- we need to have multiple ListGridField editors open for editing at once. the default editing for ListGrid is when you select a new row for editing the previous row editor is automatically reset to read only mode. we need to overide this default editing for ListGrid so our ListGrid would be able to open multiple rows in editing mode. only the ok and cancel buttons for each editor should switch it to read only mode.

can you suggest how to customize ListGrid editors to achieve the two features described above?

many thanks