LazyApiPack.Utils 0.0.3.3

About this project

This project collects common functionality that is used in multiple modules.

Functions

NotifyObject

Simple implementation of a class that notifies before and after a property has changed via the SetPropertyValue<T> method.

SetPropertyValue<T>

private bool myProperty;
public bool MyProperty {
	get => myProperty;
	set => SetPropertyValue(ref myProperty, value);
}

This property makes use of the SetPropertyValue<T> method. Note, that the parameter string? propertyName was not used. This allows the compiler to substitute this property with the caller member name (in our case "MyProperty").

First, the old property in myProperty is compared against value. If the values are identical, the method returns false, indicating, that nothing has changed. Neither PropertyChanging nor PropertyChanged were raised in this scenario. If the values differ, the event OnPropertyChanging is raised presenting the old and the new value without changing the backingfield. After that, the backingfield gets the new value and the event OnPropertyChanged is raised with the old and new values.