LINQ Examples

April 18, 2008

LINQ = .Net Language-Integrated Query

The major differentiator for LINQ to XML and other in-memory XML programming APIs is Language-Integrated Query. Language-Integrated Query provides a consistent query experience across different data models as well as the ability to mix and match data models within a single query. Querying XML with LINQ to XML

Appling LINQ against various data sources

• Simple object: a DataGridView control
• Single data model: XML document
• Multiple data models: SQL database, XML document, and an array of objects

Sample queries

• Filtering on an attribute
• Use namespaces
• Deeply nested XML
• Boolean operator: OR

Writing XML

• Reading XML, transforming XML, writing XML

Some resources

• 101 LINQ Samples
• .NET Language-Integrated Query for XML Data
• Hooked on LINQS