How to declare an indexer in VB.NET

Posted on 2005-02-25
Medium Priority
Last Modified: 2008-03-17
In C# I can do this:

public string this[int idx]
  get { return (string) lookupItem(idx); }

How can I do that in VB?  

Question by:datamobility
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LVL 25

Expert Comment

ID: 13402448
you this ?

dim mystring as string =" test"

public function charstring(mystring as as string,index as integer) as char
   return mystring.chars(index)
end function

or just

dim mychar as char = mystring.chars(3)
LVL 25

Expert Comment

ID: 13402454
you this

should ofcourse be

you mean this ?


Accepted Solution

wyoung76 earned 375 total points
ID: 13403080
Perhaps what the author means is something like a default property?

== Torn directly from the MSDN docs ==

' Visual Basic
' A class that contains many Widgets
Public Class Widgets
   'Default property implementation
   Default Public Property Widget(ByVal I As Integer) As Widget
      ' Implementation code to return a widget goes here.
      End Get
      Set(ByVal Value As Widget)
      ' Implementation code to set a widget goes here.
      End Set
   End Property
End Class

// C#
// Class that contains many Widgets.
public class Widgets
   // Indexer implementation.
   public Widget this[int index]
         // Insert code to return a Widget.
         // Insert code to set a Widget.


Hopefully I've interpreted this correctly, and have got the correct end of the stick  :o)

Author Comment

ID: 13403652
And tonight's winner of the "correct end of the stick" award goes to.....



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