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Adding injected Pages to a TabbedView

See original GitHub issue

Description

TabbedView expects the children pages to have default constructor.

When a page constructor has an injected view model, it doesn’t seem possible to add it to a TabbedPage.

Steps to Reproduce

Create a MAUI app
Switch MainPage to be a TabbedPage
Create a Page1Vm view model class and a Page1 page class
Add Page1Vm and Page1 as singletons.
Add <Page1 /> as a child of MainPage
You’ll get an error message at compile time

https://github.com/sinsedrix/MauiTests/tree/main/MauiTabbedDI

Version with bug

6.0.486 (current)

Last version that worked well

Unknown/Other

Affected platforms

Windows

Affected platform versions

Windows SDK 19041

Did you find any workaround?

I tried to add a default constructor, but then the view model is not injected.

Relevant log output

Erreur	XFC0004	Missing default constructor for "MauiApp1.MainPage".	MauiApp1

Issue Analytics

State:
Created a year ago
Comments:9 (2 by maintainers)

Top GitHub Comments

1reaction

ramonB1996commented, Aug 22, 2022

@sinsedrix Okay good to know. I will try this with your reproduction sample this week. Will get back to you.

You could try the Page Resolver package by @matt-goldman in the meantime; https://github.com/matt-goldman/Maui.Plugins.PageResolver

Follow the instructions and try if this resolves your problem 😃 I know you might not want to install a package to get it to work, but this might at least help you continue in your project.

1reaction

matt-goldmancommented, Aug 19, 2022

@ramonB1996 can you help here?