Param based form not loading gallery

[jdfort]

I'm building a safety auditing app which uses the SQL Server connector.  I pass the ID of a completed inspection to a user in an email via Flow.  https://web.powerapps.com/webplayer/app?InspectionID=12&appId=%[intentionally deleted].

The form loads the correct safety inspection off of the FacilityInspection table so I know that the parameter is being read in correctly.  Elsewhere on the form I have a gallery for signatures.  An inspection can have one or more signatures so it's a separate table.  I have a foreign key in SQL set to FK_FacilityInspectionID on my signature table to associate it to the FacilityInspection's ID.  

For my gallery of signatures I am attempting to set the items property to 

Filter('[dbo].[Signature]',FK_FacilityInspectionId=Value(Param("InspectionId"))).  

When the email goes to the user it loads the correct inspection on the form, but all the signatures are missing.  

What I've tried so far:

• Hardcoding a value into Filter command for the FacilityInspectionId - works and loads the signatures.
• Inserting a label with the value of Value(Param("InspectionId"))) -- works, correctly shows the parameter number.  I had to use the Value command because otherwise it complained about a type mismatch.

What I think is happening

• The items property isn't the right place to run my filter command & load the data
• Perhaps the gallery needs its own separate command to query the database first? 

I'm at a loss as to what it might be that's preventing the signatures from loading based of my passed parameter.   

[jdfort · Accepted solution]

Well.. how humbling.  

It turns out that I solved this myself and the reason the problem happened was that I made a silly mistake in not capitalizing the foriegn key in the param lookup.  I mistakenly assumed that Param("InspectionID") was the same as Param("InspectionId").  Once I capitalized it the problem went away.