Sample Queries (Visual Basic)

.NET Framework 3.5

The Sample Queries application is your introduction to Language-Integrated Query (LINQ). It provides many examples of query operations for LINQ to Objects, LINQ to SQL, LINQ to XML and LINQ to DataSet. The application displays a tree view of the available samples. This enables you to select both the general area and the particular example that you want to examine. The user interface displays the source code for each query you select, together with the runtime results of the query execution.

To get samples and instructions for installing them

  • Do one or more of the following:

    • On the Help menu, click Samples.

      The Readme displays information about samples.

    • Visit the Visual Studio 2008 Samples Web site. The most recent versions of samples are available there.

    • Locate samples on the computer on which Visual Studio is installed. By default, samples and a Readme file are installed in drive:\Program Files\Microsoft Visual Studio 9.0\Samples\lcid. For Express editions of Visual Studio, all samples are located online.

For more information, see Visual Studio Samples.

Security noteSecurity Note:

This sample code is intended to illustrate a concept, and it shows only the code that is relevant to that concept. It may not meet the security requirements for a specific environment, and it should not be used exactly as shown. We recommend that you add security and error-handling code to make your projects more secure and robust. Microsoft provides this sample code "AS IS" with no warranties.

To run this sample

  • Press F5.

The Sample Queries project contains about 101 samples from each of these areas:

  • LINQ to Objects

  • LINQ to SQL

  • LINQ to DataSet

  • LINQ to XML

Run the project, and select the type of LINQ sample that you want to examine. Examine the options, and run each query that interests you. The output from the query and the source code is displayed on the interface of the application.

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