Last active
June 5, 2016 21:32
-
-
Save btshft/277936367a3cdd1be00e4b843cda5128 to your computer and use it in GitHub Desktop.
Bindable class to reduce boilerplate code in mvvm (implement INotifyPropertyChanged)
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
namespace Helpers | |
{ | |
///<summary> | |
/// Reduce mvvm boilerplate | |
/// | |
/// Usage: | |
/// public class MyViewModel : Bindable { | |
/// // Now this property supports INotifyPropertyChanged | |
/// public string MyProperty | |
/// { | |
/// get { return Get<string>(); } | |
/// set { Set(value); } | |
/// } | |
/// } | |
///</summary> | |
public class Bindable : INotifyPropertyChanged | |
{ | |
private readonly Dictionary<string, object> _properties | |
= new Dictionary<string, object>(); | |
public event PropertyChangedEventHandler PropertyChanged; | |
/// <summary> | |
/// Gets the value of a property | |
/// </summary> | |
protected T Get<T>([CallerMemberName] string name = null) | |
{ | |
object value; | |
if (_properties.TryGetValue(name, out value)) | |
return value == null ? default(T) : (T) value; | |
return default(T); | |
} | |
/// <summary> | |
/// Sets the value of a property | |
/// </summary> | |
protected void Set<T>(T value, [CallerMemberName] string name = null) | |
{ | |
if (Equals(value, Get<T>(name))) | |
return; | |
_properties[name] = value; | |
OnPropertyChanged(name); | |
} | |
protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null) | |
{ | |
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName)); | |
} | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment