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Microsoft Visual Studio LightSwitch Business Application Development by Jayaram Krishnaswamy

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Chapter 6. Querying and Filtering Data

A Query is a question you pose to the database so as to retrieve a specific piece of information in the database. The querying in LightSwitch can be best understood by looking at how it is structured. The following section (abridged for the sole purpose of what is being discussed in this chapter) is a gist of the article by the LightSwitch team which you may review at: http://blogs.msdn.com/b/lightswitch/archive/2010/08/26/the-anatomy-of-a-lightswitch-application-part-3-the-logic-tier.aspx. Querying in LightSwitch can be carried out using the built-in Query Designer but more advanced querying can be carried out using code. This chapter describes the use of the built-in Query Designer in the IDE to query the ...

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