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Tip of the Day
Language: VB6
Expertise: beginner
Jun 27, 2002

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Make read-only properties visible to Web Services clients

Read-only and write-only properties in a Web Service class aren't visible to the Web Service client. The reason is that XML serialization doesn't support these sort of properties, and read-only and write-only properties aren't included in the Web Services Description Language (WSDL) documentation.

To make these properties visible to clients, create a Function that returns the value of a read-only property, or a Sub that assigns a write-only property, and decorate them with the WebMethod attribute. For example:


Dim m_Count As Integer 

ReadOnly Property Count() As Integer
   Get
      Return m_Count 
   End Get
End Property 

' This is the method visible to the Web Service's clients
<WebMethod()> Function GetCount() As Integer
    Return Count
End Function
Francesco Balena
 
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