How to get full names by typing abbreviations in a char item

Question

Hi,everybody
one more question
a char feild in a block as this:
| NY US |
My destination: In this feild ,after I type 'NY',I can get full names 'New York' then space key,type 'US' get 'United states'.(one bye one)
display as --------------------------
| New York United Stated |
I am confusing which trigger I should use,post_changed?
post_text_item?,Validat_item?
I created a table with columns 'City,State,C_fullname,S_fullname' and coded in
Post_text_item trigger using select statements,I can only get the first full name by 'NY',then press space,type in US,press enter,Forms raises a unhandled exception,doesn't display 'United States'.
no correct result up to now.
That is clear?
Thanks a lot

Answer 1

One thing you could try which may not be EXACTLY what you want but would be almost no effort is to create and LOV with all of the States, assign that LOV to the text field and on the text field set the Validate LOV property to YES.
Then if you type Cal and then return you get CALIFORNIA. If you type New and return you get a list of New York, New Jersey....
It may give you most of what you want with no effort.
Regards
Grant Ronald
Forms PRoduct Management