Adding setter to inherited read-only property in C# interface

Adding setter to inherited read-only property in C# interface

In C#, you cannot modify the access level of a property when inheriting from an interface. If an interface property is defined as read-only, you cannot add a setter to it in the inheriting class.

However, you can create a new property with the same name and a setter in the inheriting class to achieve a similar effect. Here's an example:

public interface IMyInterface { string MyProperty { get; } } public class MyBaseClass : IMyInterface { public string MyProperty { get; } } public class MyDerivedClass : MyBaseClass { public new string MyProperty { get { return base.MyProperty; } set { base.MyProperty = value; } } }

In this example, the IMyInterface interface defines a read-only property MyProperty. The MyBaseClass implements the interface and inherits the read-only property without modification. The MyDerivedClass creates a new property with the same name and a setter using the new keyword. The getter uses the base class implementation, while the setter sets the base class implementation.

Note that using the new keyword to create a new property with the same name can lead to confusion and unexpected behavior if not used carefully. It's generally a better practice to avoid changing the behavior of an inherited property, especially if it's part of a public API.

Examples

  1. "C# interface readonly property with setter in inherited class"

    • Description: Learn how to add a setter to a read-only property inherited from an interface in C#.
    public interface IMyInterface { string MyProperty { get; } } public class MyClass : IMyInterface { public string MyProperty { get => "InitialValue"; set { /* Custom setter logic */ } } }

  2. "C# interface property with custom setter in implementing class"

    • Description: Implement an interface property with a setter in the derived class.
    public interface IMyInterface { string MyProperty { get; } } public class MyClass : IMyInterface { private string _myProperty; public string MyProperty { get => _myProperty; set { /* Custom setter logic */ } } }

  3. "C# interface property override with setter example"

    • Description: Override a read-only property from an interface and include a setter in the derived class.
    public interface IMyInterface { string MyProperty { get; } } public class MyClass : IMyInterface { public string MyProperty { get => "InitialValue"; set { /* Custom setter logic */ } } }

  4. "C# interface property with setter best practices"

    • Description: Explore best practices for adding setters to interface properties in C#.
    // Provide a code snippet with best practices commentary.

  5. "C# interface readonly property override with setter"

    • Description: Override a read-only property from an interface and provide a custom setter in the derived class.
    public interface IMyInterface { string MyProperty { get; } } public class MyClass : IMyInterface { private string _myProperty; public string MyProperty { get => _myProperty; set { /* Custom setter logic */ } } }

  6. "C# interface property setter access modifier"

    • Description: Explore access modifiers for setters in C# interface properties.
    public interface IMyInterface { string MyProperty { get; set; } } // Provide examples of access modifiers for the setter.

  7. "C# interface property with private setter in implementing class"

    • Description: Implement an interface property with a private setter in the derived class.
    public interface IMyInterface { string MyProperty { get; } } public class MyClass : IMyInterface { public string MyProperty { get; private set; } }

  8. "C# interface property with internal setter in implementing class"

    • Description: Implement an interface property with an internal setter in the derived class.
    public interface IMyInterface { string MyProperty { get; } } public class MyClass : IMyInterface { public string MyProperty { get; internal set; } }

  9. "C# interface property with protected setter in implementing class"

    • Description: Implement an interface property with a protected setter in the derived class.
    public interface IMyInterface { string MyProperty { get; } } public class MyClass : IMyInterface { public string MyProperty { get; protected set; } }

  10. "C# interface property with static setter in implementing class"

    • Description: Explore the use of a static setter for an interface property in the implementing class.
    public interface IMyInterface { string MyProperty { get; } } public class MyClass : IMyInterface { public static string MyProperty { get; } }

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