The CONTINUE DIALOG statement continues the execution of a DIALOG instruction, skipping all statements appearing after this instruction.
Control returns to the dialog instruction, which executes remaining control blocks as if the program reached the end of the current control block. Then the control goes back to the user and the dialog waits for a new event.
The CONTINUE DIALOG statement is useful when program control is nested within multiple conditional statements, and you want to return control to the user by skipping the rest of the statements.
In the following code example, an ON ACTION block gives control back to the dialog, skipping all instructions below line 04:
ON ACTION zoom
IF p_cust.cust_id IS NULL OR p_cust.cust_name IS NULL THEN
ERROR "Zoom window cannot be opened if no info to identify customer"
CONTINUE DIALOG
END IF
IF p_cust.cust_address IS NULL THEN
...
If CONTINUE DIALOG is called in a control block that is not AFTER DIALOG, further control blocks might be executed according to the context. Actually, CONTINUE DIALOG just instructs the dialog to continue as if the code in the control block was terminated (it is a kind of GOTO end_of_control_block). However, when executed in AFTER DIALOG, the focus returns to the current field or read-only list. In this case the BEFORE ROW and BEFORE FIELD triggers will be invoked.
A CONTINUE DIALOG in AFTER FIELD, AFTER INPUT, AFTER DISPLAY or AFTER CONSTRUCT will only stop the program flow of the current block of statements; instructions after CONTINUE DIALOG will not be executed. If the user has selected a field in a different sub-dialog, this new field will get the focus and all necessary AFTER / BEFORE control blocks will be executed.
In case of input error in a field, the best practice is to use a NEXT FIELD instruction to stay in the dialog and set the focus to the field that the user has to correct.