问题
I'm trying to refresh a Shuttle Item whenever a Select List item is modified.
What I've done so far:
I have an item P1_MY_LIST which is a list of value. And I have a P1_MY_SHUTTLE which is populated by this query :
SELECT a, b FROM my_table WHERE col1 = :P1_MY_LIST;
Then I created a Change event on P1_MY_LIST which contain a TRUE Event set to Refresh the P1_MY_SHUTTLE item.
Yet, nothing happens when I select something in my P1_MY_LIST .
Anyone knows what I'm doing wrong ?
回答1:
For refreshing a shuttle based on a selected value in a select list, you're better off using the legacy "Cascading List of Values" attribute.
In your case: On page item P1_MY_SHUTTLE, set "Cascading List Of Value" > "Parent Item" to P1_MY_LIST. That should do it.
If for some reason that does not work in your case you can do a dynamic action but there is caveat. There is no option to submit the selected value to the server so your select list will not use the newly selected P1_MY_LIST. As a result it looks as if it is not refreshing, but actually it is.You can work around that by
- adding a true action before your refresh action.
- Action: "Execute PL/SQL Code"
- PL/SQL Code "NULL;" (you don't need to do anything)
- Items to submit "P1_MY_LIST".
That will ensure that P1_MY_LIST gets picked up when the query is executed again and it will show the correct values in your shuttle.
来源：https://stackoverflow.com/questions/62634193/oracle-apex-refresh-item-on-another-item-change