This article shows the use of
the indexer in VB.NET.
Special property
without any name or anonymous property. It
allows to access some data from an object using an index number with the object
where the object is not an array.
Item is the default
property of an ArrayList which gets the object stored in the specified index.
You can have only one Default property/Indexer per class. The Indexer can be
overloaded.
Default properties
should accept parameters.
For example:
Class Employee
Private mobiles As String()
Public Sub
SetMobiles(ByVal m1 As String, ByVal m2
As String,
ByVal m3 As String)
mobiles =
New String(2) {}
mobiles(0) = m1
mobiles(1) = m2
mobiles(2) = m3
End Sub
Default Public ReadOnly Property
Item(ByVal index As Integer) As String
'Indexer implementation
Get
Return mobiles(index - 1)
End Get
End Property
Public Shared Sub Main(ByVal
args As String())
Dim e As New Employee()
e.SetMobiles("921233444",
"947878787",
"9367676")
Console.WriteLine("Third
mobile is {0}", e(1))
End Sub
End Class
End Module
OUTPUT:
