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Model-driven app: show custom page (canvas page) from a form for new + existing records and mobile

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Posted on by grandepaci

Hi everyone 👋

I hope you can help me with my request:

Goal

I have a model-driven app and a custom page (“canvas page”). I want users to open/use this page from a form (ideally inline or as a dialog) both when:

opening an existing record, and
creating a new record (before the first save — we can’t force a save because of required fields).
It also needs to work on mobile (Power Apps iOS/Android).

What I tried (and where I’m stuck)

1. Embedded experience on the form tab

Using the Embedded Canvas App control on a tab works fine for existing records.
But on a new record (no GUID yet), the page doesn’t render at all — it never opens, so any “fallback when no ID” logic inside the page/app never runs.

2. HTML web resource that iframes a Canvas App

HTML web resource builds the apps.powerapps.com/play/<appId> URL and iframes it.
Desktop/Web: works for saved and new records (context passed via query string).
Mobile: the iframe stays blank/grey and never loads (appears blocked by the mobile shell).
Toggling “Enable for mobile” on the web resource didn’t change this.

What I’m looking for

A supported pattern to open a custom page from a form that:
- works on new records (no ID yet), and
- works on mobile (Power Apps mobile), and
- keeps users in a reasonable flow (dialog or full-page is fine; inline would be ideal but not required), and
- does not require auto-saving the form first.

Extra context (if helpful)

Command bar button approach with Xrm.Navigation.navigateTo({ pageType: "custom", name: ... }) works on desktop (dialog), but I’ve seen “Page not found” on mobile in some attempts (full page vs dialog).
I also tested an HTML web resource that tries to open the custom page via navigateTo when a tab is expanded; again desktop OK, mobile unreliable.
I can share minimal code snippets on request (HTML/JS), but I’m mainly asking for the officially supported way to achieve this scenario.

Environment (placeholders you can ask me to fill):

Region/Environment type :Sandbox
Power Apps mobile version: iOS aswell as Android

Any help and new Ideas are appreciated.
Thanks in advance.
GP

Categories:

Microsoft Dataverse with Power Apps

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Nafiun2120 144 on at

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Hey @grandepaci,

Use the supported navigateTo method (not an iframe and not the embedded Canvas App control) to open your custom page from the model-driven form for both new and existing records, including mobile. Add a ribbon/command button (or form script) that calls: Xrm.Navigation.navigateTo({ pageType: "custom", name: "<yourCustomPageName>", entityName: "<tableLogicalName>", /* recordId: formContext.data.entity.getId() for existing only */ parameters: { /* pass unsaved field values, e.g., rating: formContext.getAttribute("new_rating").getValue() */ } }, { target: 1 /* full page (mobile friendly) or 2 for dialog */, width:{value:90,unit:"%"}, height:{value:90,unit:"%"} });. For new records, omit recordId and pass whatever the user has typed via parameters; read them in the custom page with Param("rating") (or App.ActiveScreen.OnVisible). Ensure the custom page is added to the same app, published, and enabled for mobile; avoid HTML web resources that iframe Canvas apps (blocked/unreliable on mobile). This pattern opens the page without forcing an autosave, works on web and Power Apps iOS/Android, and handles both unsaved and saved records.

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grandepaci 62 on at

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Hi Nafiun,

thanks for the suggestions.
The Button with Javascript is not a bad Idea.
I did manage to show the Page an almost all cases.

1 Problem that ocurred was, i could not click the command bar Button on mobile when creating a new entry.
It does work on already existing records on mobile, as i get the option to use the command bar.

But in that 1st case, the Button doesnt seem to work.

But i will try testing with it a bit.

Kind regards
GP

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