How to make fields required in an updateble multi line form?

Question

How to make fields required in an updateble multi line form?

Answer 1

You need to create a validation item that is triggered when the user clicks the submit button.
Set the validation type to "Function Returning Error Text".
Then add your validation into the "Validation Expression 1" field. Something like:
BEGIN
FOR I IN 1.. HTMLDB_APPLICATION.G_F02.COUNT LOOP
IF HTMLDB_APPLICATION.G_F02(I) IS NULL THEN
RETURN 'Please enter in a value for xxxxx on line ' || TO_CHAR(I,'0');
END IF;
END LOOP;
RETURN NULL;
END;
As long as the function returns a string, an error is generated - as there is no single field where this error can be displayed, it will need to be displayed "On Error Page".
If the return value is NULL, then the fields are valid and the submit process can continue.
Andy