Conditonal display based on items in the cart

[cpp-dev]

When there is a specific item in the cart I want to display a check box form element. So far I can get it to display w/o conditions (but that's the easiest part) but when I put the

mvt:if

into the section it get compile errors.
This is what the block looks like -- https://privatebin.net/?7f9d7038bb48...ipztU1F4iirnK4

[cpp-dev]

The solution was to use a better value in the `mvt:if' statement

<mvt:if expr="l.settings:group:product:code EQ '_code_'">

instead of

<mvt:if expr="g.settings:product param="Read_Product_Code( g.Product_Code, '_CODE_', l.settings:product:customfield_values:customfields:_CODE_)" />