Update Column Invisible: value not is saved

Hello

I have a user form with a UDO of type Document. There is a matrix. In the matrix i have a column not visible. I can't update the value

Example:

Dim l_sboColumn As SAPbouiCOM.Column

l_sboColumn = CMatrix.GetMatrixColumn(p_sboMatrix, p_sColID)

Dim sboTxt As SAPbouiCOM.EditText = l_sboColumn.Cells.Item(p_iRow).Specific

sboTxt.Value = p_sValue

sboTxt = Nothing

Note: the column is not visible.

If I debug the instruction sboTxt.Value = p_sValue I note the value in sboTxt.Value is "" and not p_sValue

Then I cannot save the value.

If the column is visible, it's ok

Where is the problem?

Thanks, Andrea