Статья
11/18/2011

IQueryProvider.CreateQuery<TElement> Method (Expression)

Microsoft Silverlight will reach end of support after October 2021. Learn more.

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

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

Syntax

'Declaration
Function CreateQuery(Of TElement) ( _
    expression As Expression _
) As IQueryable(Of TElement)

IQueryable<TElement> CreateQuery<TElement>(
    Expression expression
)

Type Parameters

TElement
The type of the elements of the IQueryable<T> that is returned.

Parameters

expression
Type: System.Linq.Expressions.Expression
An expression tree that represents a LINQ query.

Return Value

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

Remarks

Note:
The Expression property of the returned IQueryable<T> object is equal to expression.

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

Most of the Queryable standard query operator methods that return enumerable results call this method. They pass it a MethodCallExpression that represents a LINQ query.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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