How to Perform Wildcard Searches Using LINQ?

Wildcard Searches with LINQ

In LINQ, conventional search methods like Contains, StartsWith, and EndsWith provide limited flexibility for wildcard searches. To facilitate more comprehensive searches, you can leverage the SqlMethods.Like() method.

How to Use SqlMethods.Like()

The SqlMethods.Like() method allows you to perform wildcard searches. The syntax for using this method is:

SqlMethods.Like(property, pattern)

Implementing a Wildcard Search

To illustrate the usage of SqlMethods.Like(), consider the following example:

var results =
    from u in users
    where SqlMethods.Like(u.FirstName, "%John%")
    select u;

In this example, we are searching for users with a FirstName containing the word "John." The "%" characters at the beginning and end of the pattern act as wildcards, allowing the search to match any string that contains the substring "John."

By utilizing SqlMethods.Like(), you can easily perform wildcard searches in your LINQ queries, greatly enhancing the flexibility of your search capabilities.

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