mvvmcross-objectlist

A simple proxy library, which converts an object into a list of key-values.

Howto use

There are two ways to use the ObjectList.

• Create a specific model which contains the properties needed in the UI.
• Update a specific ViewModel with Attributes (which can optionally also be added in the specific model).

Create A proxyModel with a specific model

public ExampleOverviewViewModel () {
    _currentPerson = new Person ()
    { 
        FullName = "Jelle Damen",
        BirthDate = new System.DateTime(1987,2,10),
        BirthPlace = "Hoofddorp",
        //HasChildren = false,
        Salary = 450.00
    };

    CurrentPerson = 
        new ProxyModel<Person, ExampleOverviewViewModel>(
            _currentPerson, 
            this,
            () => RaisePropertyChanged ( () => CurrentPerson ));
}

private Person _currentPerson;

public ProxyModel<Person, ExampleOverviewViewModel> CurrentPerson
{ 
    get; 
    set; 
}

public class Person {

    [ProxyModelAttribute(Description = "Full Name:", Order = 1 )]
    [MvxLang(Text="FullName", TextSource="TextSource")]
    public string FullName { get; set; }

    [ProxyModelAttribute(Description = "Birth Place:", Order = 3 )]
    [MvxLang(Text="BirthPlace", TextSource="TextSource")]
    public string BirthPlace { get; set; }

    [ProxyModelAttribute(Description = "Date of Birth:", Order = 4 )]
    [MvxLang(Text="BirthDate", TextSource="TextSource")]
    public DateTime BirthDate {get;set;}

    //public bool HasChildren { get; set;}

    [ProxyModelAttribute(Description = "Age:", Order = 2 )]
    [MvxLang(Text="Age", TextSource="TextSource")]
    public int Age
    {
        get{ 
            return (int)((DateTime.Now - BirthDate).TotalDays / 365);
        }
    }

    [ProxyModelAttribute(Description = "Salary: ")]
    [MvxLang(Text="Salary", TextSource="TextSource")]
    public double Salary { get; set; }

}

Create A proxyModel based upon the existing ViewModel

/// <summary>
/// Initializes a new instance of the
/// <see cref="Dexyon.MvvmCrossObjectList.Core.ViewModels.ExampleOverviewViewModel"/> class.
/// </summary>
public SecondExampleOverviewViewModel () {
    FullName = "Dexyon";
    BirthDate = new System.DateTime ( 1984, 11, 27 );
    BirthPlace = "Bergen";
    Salary = 100.00;

    CurrentPerson = new ProxyModel<SecondExampleOverviewViewModel> (
        this,
        () => RaisePropertyChanged ( () => CurrentPerson ) 
    );
}

private string _fullName;
private string _birthPlace;
private DateTime _birthDate;
private double _salary;

[ProxyModelAttribute ( Description = "Full Name:", Order = 1 )]
[MvxLang ( Text = "FullName", TextSource = "TextSource" )]
public string FullName { 
    get { return _fullName; } 
    set { this.SetAndRaisePropertyChanged ( () => FullName, ref _fullName, value ); } 
}

[ProxyModelAttribute ( Description = "Birth Place:", Order = 3 )]
[MvxLang ( Text = "BirthPlace", TextSource = "TextSource" )]
public string BirthPlace { 
    get { return _birthPlace; } 
    set { this.SetAndRaisePropertyChanged ( () => BirthPlace, ref _birthPlace, value ); } 
}

[ProxyModelAttribute ( Description = "Date of Birth:", Order = 4 )]
[MvxLang ( Text = "BirthDate", TextSource = "TextSource" )]
public DateTime BirthDate { 
    get { return _birthDate; } 
    set { this.SetAndRaisePropertyChanged ( () => BirthDate, ref _birthDate, value ); } 
}

//public bool HasChildren { get; set;}

[ProxyModelAttribute ( Description = "Age:", Order = 2 )]
[MvxLang ( Text = "Age", TextSource = "TextSource" )]
public int Age {
    get { 
        return (int)((DateTime.Now - BirthDate).TotalDays / 365);
    }
}

[ProxyModelAttribute ( Description = "Salary: " )]
[MvxLang ( Text = "Salary", TextSource = "TextSource" )]
public double Salary { 
    get { return _salary; } 
    set { this.SetAndRaisePropertyChanged ( () => Salary, ref _salary, value ); }  
}

public ProxyModel<SecondExampleOverviewViewModel> CurrentPerson { 
    get; 
    set; 
}

Version 3.5

• Upgraded the version number to match MvvmCross plugins
• Upgraded to the latest version
• Upgraded the iOS parts to Unified API.

Version 0.2

• Made the default dell in iOS a default value. Overrides can be done via the constructor.
• Added a default listitem to the Droid Project. Overrides can be done via the constructor.

Version 0.1

• Added the first demo project for Touch and Droid
• Added the set-up for the project

Todo Items.

• 1) Make use of Native converters to map properties back and forward from our (original) viewModel to a 'Value' on our ListViewItemViewModel.
• 2) Update the UI (LIstView) after a value has changed our (original) viewmodel.
• 3) Add methods to pass multiple ValueConverters to our BindableListView based upon PropertyName. Example code: this.CreateBinding(source) .To(vm => vm.ExampleViewModel) .WithConversion ( KeyValue ( "ExampleProperty", new ExampleConverter() ), KeyValue ( "AnotherPropery", new AnotherConverter() ) ) .Apply();
• 4) Create a mapping to pass our converters via axml.