properties - An Overview

properties - An Overview

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A home does not will need to easily return the value of the member industry. You'll be able to generate properties that return a computed benefit. Let us develop the individual object to return the entire title, computed by concatenating the first and last names:

The preceding case in point necessitates callers to use the constructor that includes the FirstName parameter. Callers can't use object initializers to assign a value towards the property. To aid initializers, you can make the set accessor an init accessor, as shown in the next code:

The previous code will make two additions to the individual class. Very first, the FirstName home declaration features the necessary modifier. Meaning any code that creates a whole new Man or woman need to established this assets.

The two the get and the set accessor is often implemented as expression-bodied customers. In such cases, the get and set keywords should be existing. The following instance illustrates the use of expression entire body definitions for the two accessors. The return key word isn't used Together with the get accessor.

That assignment throws an ArgumentException. Simply because a property set accessor must have a void return style, you report glitches inside the set accessor by throwing an exception.

It could toss a NullReferenceException without having this sign in that case. To learn more, see activities. This instance also uses the new nameof operator to convert through the house name image to its textual content illustration. Using nameof can lower mistakes where you've mistyped the identify of your residence.

You'll be able to generate code inside the established accessor in order that the values represented by a house are often legitimate. For example, suppose 1 rule for the Person class is that the identify cannot be blank or white Area. You'll create that as follows:

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The NonSerializedAttribute can only be connected to fields, not properties. You'll be able to attach the NonSerializedAttribute to the backing field for your Id residence through the use of the sphere: specifier within the attribute, as proven in the subsequent example:

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The previous case in point allows a caller to create a Person utilizing the default constructor, even when that code does properties not established the FirstName property. Commencing in C# eleven, you are able to require

Callers must both make use of the constructor with SetsRequiredMembers or established the FirstName assets utilizing an item initializer, as demonstrated in the subsequent code: