Set the Detail section's Alternate Back Color to No Color. Add a text
box to your detail section that is two inches wide and takes up the entire
height of the detail section. Set the Back Style to Normal and the Border
Style to Transparent. Set the Border Width Hairline. Give it a name (i.e.
txtBackground), set its Control Source to =1 and set Running Sum to Over All
or Over Group, depending on your needs. Send the text box to the back,
behind all other controls in the detail section. Create an On Format event
for the detail section and place code in it that will change the color as
desired depending on the value of the control.
Private Sub Detail_Format(Cancel As Integer, FormatCount As Integer)
If txtBackground.Value Mod 2 = 0 Then
' Even row
txtBackground.BackColor = RGB(255, 128, 0)
' Odd row
txtBackground.BackColor = RGB(0, 128, 255)
Hope that helps,