About properties
About properties
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Industry attributes is often hooked up to your compiler generated backing area in vehicle-executed properties. Such as, consider a revision to the individual class that adds a unique integer Id home. You write the Id residence applying an automobile-implemented residence, but your structure would not demand persisting the Id home.
The preceding example calls for callers to use the constructor that includes the FirstName parameter. Callers can't use item initializers to assign a price for the house. To guidance initializers, you may make the set accessor an init accessor, as shown in the next code:
The preceding code would make two additions to the individual course. Initial, the FirstName residence declaration consists of the expected modifier. Which means any code that makes a whole new Human being should set this house.
Just one essential pattern for applying a property requires applying A personal backing area for placing and retrieving the property benefit. The get accessor returns the value in the personal area, plus the set accessor may possibly accomplish some details validation ahead of assigning a worth on the non-public industry.
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It will toss a NullReferenceException devoid of this sign in that situation. For more info, see activities. This example also makes use of The brand new nameof operator to convert through the residence title symbol to its textual content illustration. Working with nameof can decrease errors in which you've mistyped the name on the house.
Yet again, applying INotifyPropertyChanged is an illustration of a circumstance in which you can create code in the accessors to assist the scenarios you will need.
You may carry out these properties as expression-bodied customers. Expression physique definitions include the => image accompanied by the expression to assign to or retrieve from the house.
. This attribute allows data to become accessed simply and however assists promote the security and suppleness of solutions.
You can even prohibit modifications to some property to ensure that it could possibly only be established inside a constructor. You'll be able to modify the individual class so as follows:
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The example higher than uses the string interpolation attribute to create the formatted string for the full identify.
The preceding instance might be simplified through the properties use of a throw expression as Section of the residence setter validation:
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Callers need to possibly utilize the constructor with SetsRequiredMembers or established the FirstName house applying an item initializer, as proven in the following code: