Manipulating the 'details' section in VBA

[Trystyn]

I'm trying to manipulate the size of a text box based on the masterfield.

the code:

RandomSubform.form![RandomField].Height = Number

works perfectly for this, however, when I shrink the textbox, the 'Detail' field remains stretched.

RandomSubform.form![Detail].Height = Number

Does not work, the field, Detail is not recognised.

Probably something very simple I can use but I'm a complete novice at this and can't figure out what I need to do.

Any thoughts?