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AMP - Another Mvvm Project
A collection of helper utilities, classes and controls to augment UWP MVVM applications. Built around the popular MVVMLight Framework, AMP was born from several past MTV projects and Alley demos. It helps solve common problems like asynchronous view models, visual state management, and commanding with various controls. Collected from various articles, projects, etc.
NavAware ViewModels
You may need ViewModels to perform actions when users navigate to the viewmodels respective views. The NavAwarePage and NavAwareViewModel can be used to accomplish this.
The NavAwarePage base class should be used in place of all XAML Page base classes. The NavAwarePage will call the Activate method on a NavAwareViewModel when navigating to a page, and will call the Decactivate method when navigating away from a NavAwarePage.
To use: Implement your own ViewModel inheriting from the NavAwareViewModel base class:
public class MyViewModel : NavAwareViewModel
Override the Activate and/or Deactivate methods in your new class:
public override void Activate(object parameter)
{ \\ Do work here}
public override void Deactivate(object parameter)
{ \\ Do work here}
The passed in parameter value will be the same as whatever state object passed in the Page navigation.
Replace your View's Page base class with the NavAwarePage class. Your NavAwareViewModel must be the NavAwarePage's DataContext in order for the Activate/Deactive methods to be called correctly.
Asychronous ViewModels
Often times, you need to perform actions asynchronously when your viewmodels are loaded.The AsyncViewModel is a specific implementation of a NavAwareViewModel that allows async operations to be peformed when the ViewModel is initially loaded.
Contributing
This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit https://cla.microsoft.com.
When you submit a pull request, a CLA-bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., label, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.
This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.