MVVM Easy

An easy MVVM framework to use in your WPF applications.

Usage

Properties

Inherit your ViewModels that are not Dialogs from BaseViewModel to notify binded property changes.

public class MainViewModel : BaseViewModel
{
    private string _test;
    public string Test
    {
        get => _test;
        set
        {
            _test = value;
            OnPropertyChanged();
        }
    }
}

Commands

The DelegateCommand class provide a mechanism to bind Commands and Events from view to viewmodel.

public class MainViewModel : BaseViewModel
{
    public DelegateCommand TestCommand => new DelegateCommand(Test);
    
    private void Test(object parameter)
    {
        //do something...
    }
}

You can also use a method Can to determine when a Command can be executed.

public class MainViewModel : BaseViewModel
{
    public DelegateCommand TestCommand => new DelegateCommand(Test, CanTest);
    
    private void Test(object parameter)
    {
        //do something...
    }
    
    private bool CanTest()
    {
        return true;
    }
}

Dialog Manager

The DialogManager static class allows opening Windows (dialogs) that the corresponding ViewModel inherits from DialogViewModel.

Dialog ViewModel:

public class SampleViewModel : DialogViewModel
{
}

Showing the Dialog:

public class MainViewModel : BaseViewModel
{
    private void ShowExempleDialog()
    {
        bool? dialogResult = DialogManager.ShowDialog(new SampleViewModel());
    }
}

In this case, the ShowDialog method will look for the name of a View that matches the name of the ViewModel by replacing the word "ViewModel" with "View". ViewModel SampleViewModel matches SampleView dialog.