eva/3 Application Builder • Developing eva/3 Applications • Working with Forms • Standard Beans • STableElement • Cascading Properties Update / Delete 

Examples (Technical)

CascadeDelete

The following examples shows the property CascadeDelete

Fig. 197: Table: Person
Fig. 197: Table: Person

Fig. 198: Table: Contact
Fig. 198: Table: Contact

The table Person is the main table and has 3 references. In this case we just take a look at Contact_ID.

If you now delete one dataset from the table Person, the application will search all datasets containing the Contact_ID ( at the table contact ) and delete all datasets containing this Person.Contact_ID.

CascadeUpdate

If you insert a new dataset for the table Person, there will be automatically inserted a new dataset for the table Contact with the Person.Contact_ID.

Cascading Properties Update / Delete Cascading Properties Update / Delete