This documentation is archived and is not being maintained.

IQueryProvider.CreateQuery Method (Expression)

Constructs an IQueryable object that can evaluate the query represented by a specified expression tree.

Namespace:  System.Linq
Assembly:  System.Core (in System.Core.dll)

IQueryable CreateQuery(
	Expression expression


Type: System.Linq.Expressions.Expression

An expression tree that represents a LINQ query.

Return Value

Type: System.Linq.IQueryable
An IQueryable that can evaluate the query represented by the specified expression tree.


The Expression property of the returned IQueryable object is equal to expression.

The CreateQuery method is used to create new IQueryable objects, given an expression tree. The query that is represented by the returned object is associated with a specific LINQ provider.

Several of the standard query operator methods defined in Queryable, such as OfType<TResult> and Cast<TResult>, call this method. They pass it a MethodCallExpression that represents a LINQ query.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5