Home » Developer & Programmer » Forms » What is the Difference between 1). Pre-form and 2) When-new-form-instance (Forms 6i)
What is the Difference between 1). Pre-form and 2) When-new-form-instance [message #445350] Mon, 01 March 2010 00:57 Go to next message
sts_sudha
Messages: 6
Registered: March 2010
Junior Member
Can anybody tell the difference and significance of
1) Pre-form and When-new-form-instance?
2) Post-text-item and When-validate-item?

When to use this?

Re: What is the Difference between 1). Pre-form and 2) When-new-form-instance [message #445358 is a reply to message #445350] Mon, 01 March 2010 02:58 Go to previous messageGo to next message
Littlefoot
Messages: 20826
Registered: June 2005
Location: Croatia, Europe
Senior Member
Account Moderator
Perhaps you should investigate the differences in Forms Online Help System; it contains (more or less) all you wanted to know.
icon14.gif  Re: What is the Difference between 1). Pre-form and 2) When-new-form-instance [message #445653 is a reply to message #445350] Wed, 03 March 2010 03:24 Go to previous messageGo to next message
suresh_c
Messages: 1
Registered: March 2010
Junior Member
Pre Form Fires before the When new form instance.

When validate item fires only when we update or change the value of the item

Hope helps you !!!!!!!!!!1
Re: What is the Difference between 1). Pre-form and 2) When-new-form-instance [message #445689 is a reply to message #445653] Wed, 03 March 2010 06:35 Go to previous messageGo to next message
sts_sudha
Messages: 6
Registered: March 2010
Junior Member
Hi,

First of all i thank those who has shown interest and replied.

1. I have gone through the online help and still not able to understand the difference, rather i should say, significance of pre-form and when-new-form-instance.

2. I am not interested in knowing the trigger hierarchy. I am interested to know, what cannot be done in pre-form, which can be done only using when-new-form-instance and vice versa.

Regards
Sudhakar T
Re: What is the Difference between 1). Pre-form and 2) When-new-form-instance [message #445699 is a reply to message #445350] Wed, 03 March 2010 07:00 Go to previous messageGo to next message
Martin Eysackers
Messages: 80
Registered: October 2005
Location: Belgium
Member
the main difference between the two is that you cannot navigate
in a pre-from trigger (restricted)
whereas you can in when-new-form-instance
so for example : go_block and execute-query will only work in WNFI not in PRF
Re: What is the Difference between 1). Pre-form and 2) When-new-form-instance [message #445807 is a reply to message #445699] Thu, 04 March 2010 04:05 Go to previous message
sts_sudha
Messages: 6
Registered: March 2010
Junior Member
Thanks Martin,

Well explained. This is what i was looking for.

Regards
Sudhakar T
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