Parameters in rowsource query
===

I have a combobox query that uses parameters from a parent item. When I first load the form the combobox is empty, if I go to design view and return to form view the combobox is populated with the correct items.

While searching for the cause of this I decided to create an extra text field that retrieves the same data from the same parent item. On the first launch that textbox is populated while the combobox remains empty.

My last step was to change the combobox query parameter to refer to the newly created textbox. After that the previously working textbox started out empty as well and became populated after going to design view and back.

My hypothesis - the query tries to retrieve the parameters before the text fields are filled. Keep in mind I have reversed loading order of main-form and sub-form [as explained here.][1]
I don't know what to google for any more


  [1]: http://stackoverflow.com/questions/11097227/expression-in-control-source-and-default-value