Entity Framework Dynamic LINQ Discover How to Execute Dynamically

Definition

System.Linq.Dynamic allows you to express LINQ queries using extension methods that take string arguments instead of type-safe language operators.

Dynamic Expression API

The Dynamic Expression API is brought into scope by using (importing) the System.Linq.Dynamic namespace. Below is an example of applying the Dynamic Expression API to a LINQ to SQL data source.

var query =
    db.Customers.
    Where("City = @0 and Orders.Count >= @1", "London", 10).
    OrderBy("CompanyName").
    Select("new(CompanyName as Name, Phone)");

Note that expressions in the query are strings that could have been dynamically constructed at run-time.

Requirements

Entity Framework Version

• All versions are supported.

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