Example: Checking for Existing Attributes

Your provisioning method will throw an exception if you attempt to access an attribute that was not selected in the attribute inclusion list. This topic demonstrates one technique to avoid this problem.

The following example shows how to catch the exception that is raised when attempting to access an attribute that was not included in the attribute inclusion list:

    Public Function IsAttributeAvailable(ByVal csentry As CSEntry, ByVal AttribName As String) As Boolean
     
    Try
      IsAttributeAvailable = csentry(AttribName).IsPresent
    Catch ex As AttributeNotInInclusionListException
      IsAttributeAvailable = False
    End Try
     
    End Function

    bool IsAttributeAvailable(CSEntry csentry, string AttribName)
    {
      try
      {
        return(csentry[AttribName].IsPresent);
      }
      catch(AttributeNotInInclusionListException ex)
      {
        return(false);
      }
    }

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Build date: 2/16/2009