Problem in resizable 2 matrix in own form

Question

I want to design a form with exactly like <b>journal voucher</b>
so it has 2 matrix object (upper and below)
here's my code
Set oFormPOS = SBO_Application.Forms.Add("formPointOfSales", ft_Sizable, -11)
    '// set the form properties
    oFormPOS.Title = "Form Point of Sales"
    oFormPOS.Left = 300
    oFormPOS.Width = 520
    oFormPOS.Top = 100
    oFormPOS.Height = 500
    oFormPOS.AutoManaged = False
    Set oItem = oFormPOS.Items.Add("PMatrix1", it_MATRIX)
    oItem.Left = 20
    oItem.Width = 485
    oItem.Top = 25
    oItem.Height = 160
    Set oPOS.oMatrix = oItem.Specific
    Set oPOS.oColumns = oPOS.oMatrix.Columns
    Set oItem = oFormPOS.Items.Add("PMatrix2", it_MATRIX)
    oItem.Left = 20
    oItem.Width = 485
    oItem.Top = 300
    oItem.Height = 170
    Set oPOS.oMatrix2 = oItem.Specific
    Set oPOS.oColumns2 = oPOS.oMatrix2.Columns
but when I resize down my form, <b>the matrix followed my resize and increasing the height automatically and stacking with another matrix</b>.
even though I set AutoManaged = False, it still resize automatically , and make my form  
screw up
Please anyone help me to solve this problem
I want my form to exactly like journal voucher (doesn't has a problem with resize)
Thanks

Answer 1

Hi Rasmus Thanks for the answer
and what do you mean by catch the form resize event ?
about my code what is the use of Automanaged = false, I didn't feel any different
I thought Automanaged = false will make my matrix not resize automatically,but it didn't
if i can change my matrix not resize automatically, I think i will change my code to these code, and I hope will auto arrange the position of my matrix
Set oItem = oFormPOS.Items.Add("PMatrix1", it_MATRIX)
    oItem.Left = 20
    oItem.Width = 485
    oItem.Top = oFormPos.Top + 10
    oItem.Height = (oFormPos.height/2) - 30
    Set oPOS.oMatrix = oItem.Specific
    Set oPOS.oColumns = oPOS.oMatrix.Columns
    Set oItem = oFormPOS.Items.Add("PMatrix2", it_MATRIX)
    oItem.Left = 20
    oItem.Width = 485
    oItem.Top = (oFormPos.Height/2) + 10
    oItem.Height = (oFormPos.Height/2) - 50
    Set oPOS.oMatrix2 = oItem.Specific
    Set oPOS.oColumns2 = oPOS.oMatrix2.Columns
but I don't know how to disable the resize of the matrix automatically
so Rasmus beside what is the form resize event, do you know the use of automanaged ?
Thanks