You can enable the L2 cache globally in your backend settings and all context instances will have the level 2 cache enabled, so you can use the default constructor. To do that, right-click on the design surface and open the Model Settings
dialog. Then switch to the Backend Settings
tab, check the Enable the 2nd level cache
checkbox and click OK.
Once you have this setup, the OpenAccessDataSource will also take advantage of the L2 cache, as it is using the default constructor of the context class and as we said, by default the cache will be enabled for all context instances. I hope that helps.
the Telerik team
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