Use Class Module Property in a Query?

[Bandit292]

I'm just getting my feet wet with class modules in Access97. My project stores AF Reserve duty information. I have been converting stored duty dates to days and/or dollar equivalents within queries by using calculated fields. Using class modules, I had hoped to develope a Duty class which would throw off Days and Dollars properties. I can get this to work with correct results in the immediate window, but when I attempt to use the Duty.Days or Duty.Dollars properties in a query, it treats the property like an undefined variable.<br>
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I know this must be something easy I have overlooked. Any hints for this class module neophyte?<br>
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Thanks,<br>
Jeff