Refresh Combo Box on Subform

I have a main form that has details of Jobs (frmJobReports). This has a tab page with a subform that allows us to provide a price breakdown for any additional costs.

The main form details the equipment we are working on based on the site. There could be any number of pieces of equipment on any site. If we carrying out general maintenance on the Site, we have an equipment record called "SiteNameGeneral".

The costing subform is used to provide quotations against specific equipment on the site.

I use the following code in a query to lookup all plant for that site in a combobox. This works fine first time round, but if a scroll records in the main form and then use the dropdown in the subform combo the records remain on the origin records detail.

SELECT EquipmentList.Plant
FROM EquipmentList
WHERE (((EquipmentList.Site)=[forms]![Job Reports]![cboSite]) AND ((EquipmentList.Archived)="No"));

I have tried every which way with requeries, but cannot get it to work.

Many thanks in anticipation.
Who is Participating?
Scott McDaniel (Microsoft Access MVP - EE MVE )Connect With a Mentor Infotrakker SoftwareCommented:
If you click ONCE on the subform, and then review the Properties dialog - you'll generally see it there. For reference, the Subform CONTROL will have only  events (Enter/Exit) and will also have a property named "Source Object".

I'm not sure exactly when you'd fire this code - that would depend  on when you need the subform's control would need to be requeried. Perhaps the main form's Current event, which fires each time you move to a different record.
Scott McDaniel (Microsoft Access MVP - EE MVE )Infotrakker SoftwareCommented:
You can requery a combo on a subform like this:


Note that "NameOfYourSubformCONTROL" is the name of the Subform CONTROL on your mainform, and may or may not be the same as the form you're using as a Source Object of that control.
SparkyPAuthor Commented:
Thanks for prompt response

To be clear the Control of the subform, is the name you would see if you looked at the tab order of the form?

Which event would you assign the requery, and on which control?

Many thanks
SparkyPAuthor Commented:
Thanks for the explanations. Works just as I wanted it. Really appreciate your patience.
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