Created
June 28, 2014 01:42
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Base class for data binding
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/// <summary> | |
/// This class is the base for all classes that neds to be bound to | |
/// eg: this.set(ref this._FIELD, value); | |
/// </summary> | |
public class BindableClassBase : INotifyPropertyChanged | |
{ | |
public event PropertyChangedEventHandler PropertyChanged; | |
/// <summary> | |
/// Sets a property, then fires the PropertChanged Event | |
/// </summary> | |
/// <typeparam name="T">The type for the property being set.</typeparam> | |
/// <param name="storage">The field that will be storing the value</param> | |
/// <param name="value">The new value</param> | |
/// <param name="propertyName">THe name of the proprty being changed</param> | |
/// <returns>True if the value not equal the storage.</returns> | |
protected bool SetProperty<T>(ref T storage, T value, [CallerMemberName] String propertyName = null) | |
{ | |
if (object.Equals(storage, value)) | |
{ | |
return false; | |
} | |
storage = value; | |
this.OnPropertyChanged(propertyName); | |
return true; | |
} | |
/// <summary> | |
/// Sets a property, then fires the PropertChanged Event. | |
/// This method doesn't care if the storage and value are the same. | |
/// </summary> | |
/// <typeparam name="T">The type for the property being set.</typeparam> | |
/// <param name="storage">The field that will be storing the value</param> | |
/// <param name="value">The new value</param> | |
/// <param name="propertyName">THe name of the proprty being changed</param> | |
protected void SetPropertyWithNoCheckForEquality<T>(ref T storage, T value, [CallerMemberName] String propertyName = null) | |
{ | |
storage = value; | |
this.OnPropertyChanged(propertyName); | |
} | |
private void OnPropertyChanged([CallerMemberName] string propertyName = null) | |
{ | |
var eventHandler = this.PropertyChanged; | |
if (eventHandler != null) | |
{ | |
eventHandler(this, new PropertyChangedEventArgs(propertyName)); | |
} | |
} | |
} |
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