How to build a tree view form ?

Bronko

Hi,

I´m still looking for a way to create a tree view form with standard NAV resources.
For example : I want to show a nested production BOM with expand / collapse function.
There are several forms in NAV 5.0 (583, 634, 703, 5522, 5847, 6520) that already have
the behavior I need, but the problem is, that they are based on a temporary table.
So the changes won't be written back to the database. I tried to synchronize the changes
by code, but there's a problem with the OnModify :

  LocalRec := Rec;
  LocalRec.MODIFY;

After entering the second modification I get the message 'Another user has modified the record...'.
In Form 5522 it seems to work somehow, but I couldn't figure out how.

How is it possible to build a tree view form and write back the changes to the database ?

David_Singleton

You need to have code something like:

MyProdBomLine.get(rec."no.","line no.");
Myprodbomline := rec;
MyProdbomline.modify;

(There are many different ways to format this, so play around till you get the ideal).

Bronko

Hi David,

thank you for your answer.

Unfortunately this doesn't work. I get the same error after the second modification. I also tried with TRANDFERFIELDS, but still the same problem.

David_Singleton

Bronko wrote:

Hi David,

thank you for your answer.

Unfortunately this doesn't work. I get the same error after the second modification. I also tried with TRANDFERFIELDS, but still the same problem.

Show the actual code.

Bronko

Form - OnModifyRecord() : Boolean

ltRec.GET("Line No.");
ltRec := Rec;
ltRec.MODIFY;

David_Singleton

Bronko wrote:

Form - OnModifyRecord() : Boolean

ltRec.GET("Line No.");
ltRec := Rec;
ltRec.MODIFY;

#-o sorry, my bad.... try

Form - OnModifyRecord() : Boolean

ltRec.GET("Line No.");
ltRec.transferfields(Rec);
ltRec.MODIFY;

Bronko

I'm sorry, but I still get the same error message.

Bronko

I solved the problem :

LocalRec := Rec;
LocalRec.MODIFY;
Rec := LocalRec

The MODIFY generates a new version of the record and you have to reassign it to the actual record to be able to make further changes.