Dynamically building LINQ expression predicates

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Dynamically building LINQ expression predicates(albahari.com)

submitted by powerrush(3873) 4 years, 5 months ago

Suppose you wanted to write a LINQ to SQL query that implemented a keyword-style search. In other words, a query that returned rows whose description contained some or all of a given set of keywords...

2 comments |category: C# |Views: 917
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tags: C#3.0 LamdaExpressions C# LINQ another

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posted by cls2deg(1535) 4 years, 5 months ago 0

The only problem with the code presented in this article is that the predicates use Or and And instead of OrElse and AndAlso. The latter two should be use to provide boolean short-circuiting. Otherwise, every clause of a predicate will be executed each time it's invoked.

posted by powerrush(3873) 4 years, 5 months ago 0

Meaning you could just replace Expression.Or with Expression.OrElse & Expression.And with Expression.AndAlso to solve the issue you point out?

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