Master-detail: check changes in detail when navigation in master

Question

Dear friends,
forms 6i oracle 9i.
I have a master and a detail block, changes in detail block can only be made in a non-database-field.
For saving a procedure do_save is called where values from non-database-fields are calculated and then put into database field.
For realizing that any changes where made I created another non-database-field in a control block which is set to 1 in when-validate-item-trigger of detail.non-database-field.
When closing the form I simply check the status of my control.item und if necessary call the dó_save procedure.
I now want to have same functionality when navigating through master-block, for example with key-down.
I tried to use the master on_populate_detail trigger:
--snip
do_check_item_changed;
IF ( (:EVM_A_ARTIKEL.H_MANDANT is not null) or (:EVM_A_ARTIKEL.ABTEILG_ID is not null) or (:EVM_A_ARTIKEL.ARTTYP_ID is not null) or (:EVM_A_ARTIKEL.ARTIKEL_ID is not null) ) THEN
rel_id := Find_Relation('EVM_A_ARTIKEL.EVM_A_ARTIKEL_EVM_JN_A_L');
Query_Master_Details(rel_id, 'EVM_JN_A_L');
--snip
but at this time the detail block seems to be empty.
Has anybody an idea where's the right place to put my
checking procedure?
Thanks for help
Silke

Answer 1

Hallo,
Do you mean this?
relation type Join
detail datablock evm_jn_a_l (this block
itself is based
on a join)
join condition EVM_JN_A_L.H_MANDANT = EVM_A_ARTIKEL.H_MANDANT AND
EVM_JN_A_L.ABTEILG_ID = EVM_A_ARTIKEL.ABTEILG_ID AND
EVM_JN_A_L.ARTTYP_ID = EVM_A_ARTIKEL.ARTTYP_ID AND
EVM_JN_A_L.ARTIKEL_ID = EVM_A_ARTIKEL.ARTIKEL_ID
behavion when deleting not isolated
hinder masteless actions no
coordination no
automatic query no
Silke