Subject attributes can be connected to your compiler generated backing area in vehicle-applied properties. As an example, look at a revision to the Person course that adds a unique integer Id assets. You generate the Id property making use of an car-executed home, but your design and style won't demand persisting the Id property.
A get property accessor is accustomed to return the assets price, in addition to a established assets accessor is utilized to assign a completely new worth.
Developers that use this class needn't know the small print of your implementation. None of such inner changes impact the use of the individual item. That's the critical reason behind working with Properties to reveal knowledge users of the item.
One essential sample for employing a residence includes making use of A personal backing subject for setting and retrieving the residence value. The get accessor returns the value with the private discipline, and the set accessor may possibly carry out some information validation right before assigning a price for the private industry.
That is the fundamentals of your syntax. You will find many various versions that assistance various unique style and design idioms. Let us examine, and study the syntax options for Every single.
To make a SaleItem, you should established each the Name and Cost properties applying item initializers, as revealed in the subsequent code:
The following example repeats the previous 1, apart from that Identify and Rate are vehicle-implemented properties. The example also eliminates the parameterized constructor, to make sure that SaleItem objects are now initialized with a connect with to your parameterless constructor and an object initializer.
You may employ these properties as expression-bodied members. Expression entire body definitions include the => image accompanied by the expression to assign to or retrieve with the assets.
It's also properties authorized to position the greater restrictive modifier on the get accessor. For example, you might have a community house, but restrict the get accessor to non-public. That state of affairs is never performed in follow.
Specific initialization is most beneficial for read through-only properties, as you'll see later on in the following paragraphs.
House accessors often consist of one-line statements that just assign or return the result of an expression.
The subsequent instance illustrates this pattern. In this example, the TimePeriod class represents an interval of time. Internally, the class merchants some time interval in seconds in A non-public area named _seconds. A read-publish assets named Several hours will allow The client to specify some time interval in several hours.
The previous case in point could be simplified by utilizing a toss expression as Section of the home setter validation:
The preceding example allows a caller to produce a Individual utilizing the default constructor, even when that code doesn't established the FirstName home. Starting in C# eleven, you can need
The home definition demonstrated over is really a read-create assets. Recognize the search term benefit in the set accessor. The set accessor constantly has one parameter named worth. The get accessor need to return a price which is convertible to the sort of the home (string in this instance).