Re: Difficulty in passing parameter in Forms 4.5

Jimmy,

When passing parameters between forms, the second form must have a parameter with the same name as the one you are passing to it from the first form. That means you must have created that parameter at design time (under the parameter node in the object navigator). When the second form is called and a parameter is passed to it, the parameter in the second form is given the value of the passed parameter. You can access or use this parameter as follows:

:parameter.param_name

You can change it by assigning new values to it or reference it for other needs.

Good luck.

Mark Freudenberg

On Wed, 08 Oct 1997 20:26:34 -0700, Jimmy <c6635500_at_comp.polyu.edu.hk> wrote:

>I have difficulty in passing parameter list between two forms.
>
> Assume forms FORM1 has a button with the following codes:
>
> declare
> para_id paramlist;
> begin
> para_id := get_parameter_list('para_name');
> if not id_null(para_id) then
> desttoy_parameter_list(para_id);
> end if;
> para_id := create_parameter_list('para_name);
> add_parameter(para_id,'p1',text_parameter,'testing');
> call_form('FORM2',no_hide,no_replace,no_query_only,para_id);
> end;
>
> But in FORM2, when-new-form-instance trigger, I don't know how to code
>and show the p1's value in para_id. (it should show 'testing') I know
>that it needs to define the parameter list again in FORM2. But I have
>tried many times in different ways and still get the error message "p1
>not defined in FORM2". Could anyone help me to solve this problem?
>(press button in FORM1 and open FORM2 to show p1)
>
>Thank in advance,
>Jimmy
Received on Thu Oct 09 1997 - 00:00:00 CEST