Not known Factual Statements About properties

Not known Factual Statements About properties

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The previous instance requires callers to make use of the constructor that features the FirstName parameter. Callers are unable to use object initializers to assign a worth on the house. To help initializers, you can also make the established accessor an init accessor, as shown in the following code:

You'll be able to increase any restrictive accessibility modifier to either the set or get accessors. Any obtain modifier you spot on the individual accessor must be much more constrained than the obtain modifier around the home definition.

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Now, the FirstName property might be accessed from any code, but it really can only be assigned from other code in the Person course.

It will throw a NullReferenceException without this sign in that scenario. For more info, see events. This example also utilizes the new nameof operator to transform from the home name symbol to its textual content representation. Utilizing nameof can decrease faults in which you've mistyped the identify in the house.

You are able to publish code in the established accessor to make certain the values represented by a assets are constantly valid. For example, suppose just one rule for the Person class would be that the name cannot be blank or white Room. You would write that as follows:

Properties behave like fields after they're accessed. However, not like fields, properties are implemented with accessors that determine the statements executed every time a property is accessed or assigned.

. This attribute enables data to get accessed quickly and however aids endorse the security and adaptability of techniques.

Specific initialization is most useful for study-only properties, as you will see later on in this article.

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The subsequent example illustrates this pattern. In this example, properties the TimePeriod course represents an interval of time. Internally, The category merchants the time interval in seconds in A personal discipline named _seconds. A go through-write residence named Hours permits the customer to specify enough time interval in hours.

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You might choose the Preliminary price for that FirstName assets being the empty string as an alternative to null. You'll specify that as proven down below:

Callers should both utilize the constructor with SetsRequiredMembers or set the FirstName home working with an item initializer, as shown in the subsequent code: