Add to Interface

• Aug 03, 2020
• 2 minutes to read

Purpose

This Code Provider adds a member to an interface implemented by the current class. Use this Code Provider to make the member obligatory for all interface implementations.

Availability

Available when the caret is on a non-overridden member, assuming the class implements one or more interfaces.

Usage

1. Place the caret on a member name in its declaration.

   Note

   The blinking cursor shows the caret’s position at which the Code Provider is available.

   C#

   interface IPerson {
       string FullName { get; set; }
   }
   class Customer : IPerson {
       public string FullName { get; set; }
       public string MobilePhone│ { get; set; }
   }
   

   VB.NET

   Interface IPerson
       Property FullName() As String
   End Interface
   Class Customer
       Implements IPerson
   
       Public Property FullName() As String Implements IPerson.FullName
       Public Property │MobilePhone() As String
   End Class
   

2. Press the Ctrl + . or Ctrl + ~ shortcut to invoke the Code Actions menu.
3. Select Add to <Interface Name> Interface from the menu. In this case, the menu item will be Add to IPerson Interface.

After execution, the Code Provider adds the required member to the interface.

C#

interface IPerson {
    string MobilePhone { get; set; }
    string FullName { get; set; }
}
class Customer : IPerson {
    public string FullName { get; set; }
    public string MobilePhone { get; set; }
}

VB.NET

Interface IPerson
    Property MobilePhone As String
    Property FullName() As String
End Interface
Class Customer
    Implements IPerson
    Public Property FullName() As String Implements IPerson.FullName
    Public Property MobilePhone() As String Implements IPerson.MobilePhone
End Class