Visual Basic 2015 Unleashed

Read-Only Properties

It’s not unusual to give a class the capability of exposing data but not of modifying such data. Continuing the example of the Person class, imagine you want to expose the FirstName and LastName properties plus a FullName property that returns the full name of the person. This property should be marked as read-only because only the FirstName and LastName properties should be editable and FullName is the result of the concatenation of these two properties. You can therefore define a read-only property as follows:

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Public Class Person     Public Property FirstName As String     Public Property LastName As String     Public ReadOnly Property FullName As String          Get               Return Me.FirstName ...