Populate a combobox based on a textbox in an Access form using the combobox Row Source property

Hi all.

I want to do this without VBA, but rather use the Row Source property of the combobox.

I tried setting the "Row Source" property to the following but I get an error:

SELECT OrderID FROM myOrders WHERE (TicketNumber = Forms!ServiceTicket!TicketID)

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I get the following error: Incorrect syntax near '!'

I also tried the following and got the same error:
SELECT OrderID FROM myOrders WHERE (TicketNumber = [Forms]![ServiceTicket]![TicketID])

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The TicketID textbox is in the same form as the combobox.

Any ideas how I can get this to work?
printmediaAsked:
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John TsioumprisSoftware & Systems EngineerCommented:
Your code should work....have checked your field names....TicketNumber <->TicketId
printmediaAuthor Commented:
I get the same error message.
Jessica WhitleySoftware DeveloperCommented:
With this situation you will be best served by having the textbox and combobox bound. Use an event in the textbox to capture the text and populate the combobox with it. I would use the .exit event as it will capture the focus just before the next object gains focus. Be sure to set the onexit event on the textbox to true in the properties.
John TsioumprisSoftware & Systems EngineerCommented:
I have edited my first comment....
I am afraid that without VBA won't have the output you need...after all you do need a requery

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DatabaseMX (Joe Anderson - Microsoft Access MVP)Database Architect / Systems AnalystCommented:
Try this

SELECT OrderID FROM myOrders WHERE TicketNumber = CLng([Forms]![ServiceTicket]![TicketID])
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