[ 
|../../index.htm#lansa/ugubc_c10110.htm]
You are here:
How Many Entries Are Passed in the TRIG_LIST?
When a trigger is invoked it is passed a working list called TRIG_LIST that contains details of the field or table record that is being actioned.
When invoked, TRIG_LIST may contain 0, 1 or 2 entries:
Number of Entries |
Meaning / Content |
|---|---|
0 |
There are no details available in this context (e.g.: before open, before read). |
1 |
There is one set of details available in the current context (e.g.: after read). |
2 |
There are two sets of details available in the current context. Entry 1 is the new details and entry 2 is the previous details. (e.g.: before/after update images). |
|
The number of entries passed in the list varies with the operation in progress according to the following table:
Operation In Progress |
Number Of Entries In TRIG_LIST |
|---|---|
Before Open |
0 |
After Open |
0 |
Before Close |
0 |
After Close |
0 |
Before Read |
0 |
After Read |
1 |
Before Insert |
1 |
After Insert |
1 |
Before Update |
2 |
After Update |
2 |
Before Delete |
1 |
After Delete |
1 |
|
[ |../../index.htm#lansa/ugubc_c10110.htm]