create new table field that value come from field A +field B

SINOEUNSTEVENNEANG

dear

i would like to create new table field that value come from field A+field B.

could you please guide me to do that ?

waiting for your kindly reply.

mohana_cse06

What did you try and what is not working?

SINOEUNSTEVENNEANG

i use list page. in event aftergetrecord i write a statement

newfield := fieldA+fieldB;

but it display only on list page not update on table.

mohana_cse06

If you need field to be modified on Table the better to create a function and modify the field
Or you can create a flow field to show it in form also..

SINOEUNSTEVENNEANG

i always get error message "you can not make any changes in the database in transaction has been started.


my statement.

newfield := fieldA+fieldB;
MODIFY;

mohana_cse06

take a record variable and try..

Marije_Brummel

It's always great to see people getting started with NAV development.

However, in this case, you might want to take a small step back and start by investigating how the transaction structure works in NAV.

NAV lets you change data in many places but triggers on forms are definately the ones you want to use, hence the error.

Is there another developer available near you that you can ask this question? That will probably be faster than going though this forum, althoug there are many patient posters here.

SINOEUNSTEVENNEANG

could you please tell what book i should read ? and what page ?

Marije_Brummel

I suggest this one and start at the beginning.

http://www.amazon.com/Programming-Micro ... 1847196527

SINOEUNSTEVENNEANG

thank you very much for your recommendation.