How to get Valid Row Count on Matrix

Question

Our code reads certain fields on the marketing document form (both Header and Line fields) every time before Add or Update the document.
To read the lines, we have a function "GetLinebyUI(i, FormType, other parameters...)" that is called for every Line on the Matrix. It looks like:
For i=1 to MaxRow
'...Call GetLinebyUI(i, FormType, ...) function...
next i
We initially had MaxRow = oMatrix.RowCount
And we found:
1. It works correctly when updating Closed QU, Closed OR, DN,RE,IN and CN. For example, when updating Comment on a single line Sales Quotation, it reads oMatrix.RowCount=1
2. When Updating Open Sales Quotation or Open Sales Order, RowCount reads one more line than what is on the Form. So MaxRow should be oMatrix.RowCount-1. For example, updating Comment on an Open Sales Order with only one line, oMatrix.RowCount reads '2', and we need MaxRow to be '1'. Otherwise it will give Exception error for every field it tries to read on the second line.
3. When Adding documents (all A/R documents), RowCount reads one more line than what is entered on the Form, so MaxRow needs to be oMatrix.RowCount-1.
How can we correctly get MaxRow according to the FormType and if it's to be added or updated?

Answer 1

Hi Satish,
Thanks for your reply.
I should have mentioned that there are chances to update DN,RE,IN and CN - either Open or Closed (e.g. update a header level User-Defined field, or update the Comment). In these cases, it should be RownCount for both Open and Closed. So it looks like we need more than just doc status to seperate the situations.
Here is a comparison of situations (RC stands for RowCount):
Action- Status- QU/OR--- DN/RE/IN/CN/PD/PU/PC
Add------ Open--- RC-1-- RC-1
Update- Open- RC-1-- RC
Update- Closed- RC------ RC
Thanks again for the input.
Yi
Message was edited by:
        Yi Liao