How can I retrieve the document line status value from UI

Hi,

Right now I need to do some check with the each document line status in UI, but it seems it doesn't exist in the the matrix. When I try to use code like this:

oEditText = (SAPbouiCOM.EditText)oMatrix.Columns.Item("LineStatus").Cells.Item(i).Specific;

It gives me Invalit Column error, I guess the line status field does not exist in the matrix. Do I have to use DI or SQL query to retrieve the like status value?

Thanks,

Lan