Caching in Web Services
Inherently, Web services support output caching by use of the CacheDuration property of the WebMethodAttribute class. The CacheDuration WebMethodAttribute is similar to the @OuputCache Duration attribute in that you set its value equal to the number of seconds that a response should remain in the cache. In Listing 16.9 I'll demonstrate how to enable output caching for a WebMethod that returns a DataSet.
Listing 16.19 illustrates how to cache the output of a Web service which returns a DataSet object.
Listing 16.19. Implementing Output Caching in the GetProducts Method
[VisualBasic.NET] 01: <%@ WebService Language="vb" Class="ProductServices" %> 02: 03: imports System.Data 04: imports System.Data.SqlClient 05: imports ... |
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