Undo Changes in child table (using view link)

Question

Hello,
My environment : Jdev 11.1.2.2.0
I have a master-detail relationship which is linked using View Link. My requirement is to open a popup on double clicking the master row, and the user can add/delete/modify the child rows. Also I need to provide Ok/Cancel buttons. I need to Undo all the changes done for the child when the user clicks 'Cancel'. Can anyone please help to solve this?
Regards
Suresh

Answer 1

First u need to a custom SelectionListener and make sure that RowSelection is set to single row. Add a method in the Managed Bean and make the row as current using the below java code
public void Master_tableListener(SelectionEvent selectionEvent) {
// This code is to make the selected row as current programatically
ADFUtil.invokeEL("#{bindings.*YourViewObjectName*.collectionModel.makeCurrent}",
new Class[] { SelectionEvent.class },
new Object[] { selectionEvent });
Row selectedRow =
(Row)ADFUtil.evaluateEL("#{bindings.*YourViewObjectIterator*.currentRow}");
// Tip : U will get the above EL's when u 1st drop the Master table on the page
// Invoke the pop up programatically
RichPopup.PopupHints ph = new RichPopup.PopupHints();
p1.show(ph);
After writing this code.. All u need to do is Drop the Detail Table on the Dialog of ur popup. This way u will get all the rows of the table. So, filter this table with the foreign key using some code..
Or u can just drop the region containing the Detail Table with the Rollback and commit
- Saif
Edited by: Saif Khan on Sep 11, 2012 5:34 PM