Context Variable error ("Name isn't valid")

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Posted on by bcanfield83

Hi All,

I'm receiving an error message when trying to reference a Context Variable on a screen within my app.

The Context Variable is being set as part of the "OnVisible" property within screenSuccess.

UpdateContext({ctxtReqID: frmNewRequest.LastSubmit.ID})

Pretty straightforward. The referenced form (frmNewRequest) is on the previous screen. Once submitted, the user is navigated to screenSuccess. Thus, the idea is to simply set ctxtReqID to the ID # of the request (BTW, this is being submitted to a SharePoint List).

At the top of screenSuccess is a header component; the HeaderText property has the following:

"Request #" & ctxtReqID & " has been submitted!"

However, the app is displaying an error message which states:

"Name isn't valid; 'ctxtReqID' isn't recognized"

If I update the HeaderText property to the following, it works fine:

"Request #" & frmNewRequest.LastSubmit.ID & " has been submitted!"

Obviously, there's no reason I couldn't simply use this instead of setting/referencing a Context Variable, but I'm still a bit mystified on why it wouldn't work through a Context Variable since it's being set (or, should be) to that same exact property of the Last Submit ID.

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bcanfield83 56 on at

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Re: Context Variable error ("Name isn't valid")

Thanks! I do understand that concept, and makes sense. I thought there was also a way to pass a Context Variable from one screen to another by incorporating it into the "Navigate" function, i.e.:
Navigate(screenSuccess, ScreenTransition.Fade, {ctxtReqID: frmNewRequest.LastSubmit.ID})
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SpongYe 5,580 Super User 2025 Season 1 on at

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Re: Context Variable error ("Name isn't valid")

Hi @bcanfield83

Context variables are scoped to a screen, which means that you can't build a formula that refers to a context variable on another screen. If you've used another programming tool, you can think of a context variable as similar to a local variable. Use the Set function to work with global variables that are available throughout your app.

Set(ctxtReqID, frmNewRequest.LastSubmit.ID)

If you have any questions or feedback, please let me know. Have a great day! 😊

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