DataServiceQuery Class

Article
05/29/2013

An abstract class that represents a single query request to WCF Data Services.

Inheritance Hierarchy

System.Object
  System.Data.Services.Client.DataServiceRequest
    System.Data.Services.Client.DataServiceQuery
      System.Data.Services.Client.DataServiceQuery<TElement>

Namespace: System.Data.Services.Client
Assembly: Microsoft.Data.Services.Client (in Microsoft.Data.Services.Client.dll)

Syntax

'Declaration
Public MustInherit Class DataServiceQuery _
    Inherits DataServiceRequest _
    Implements IQueryable, IEnumerable
'Usage
Dim instance As DataServiceQuery

public abstract class DataServiceQuery : DataServiceRequest, 
    IQueryable, IEnumerable

public ref class DataServiceQuery abstract : public DataServiceRequest, 
    IQueryable, IEnumerable

[<AbstractClassAttribute>]
type DataServiceQuery =  
    class 
        inherit DataServiceRequest 
        interface IQueryable 
        interface IEnumerable 
    end

public abstract class DataServiceQuery extends DataServiceRequest implements IQueryable, IEnumerable

The DataServiceQuery type exposes the following members.

Properties

	Name	Description
	ElementType	Gets the type of object submitted as a batch to the data service. (Inherited from DataServiceRequest.)
	Expression	Represents an expression that contains the query to the data service.
	Provider	Represents the query provider instance.
	RequestUri	Gets the URI of the request object submitted to a data service. (Inherited from DataServiceRequest.)

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Methods

	Name	Description
	BeginExecute	Asynchronously sends a request to execute the data service query.
	EndExecute	Called to complete the asynchronous operation of executing a data service query.
	Equals	(Inherited from Object.)
	Execute	Executes the query against the data service.Not supported by the WCF Data Services 5.0 client for Silverlight.
	Finalize	(Inherited from Object.)
	GetHashCode	(Inherited from Object.)
	GetType	(Inherited from Object.)
	MemberwiseClone	(Inherited from Object.)
	ToString	(Inherited from Object.)

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Explicit Interface Implementations

	Name	Description
	IEnumerable.GetEnumerator	Gets the IEnumerator object that can be used to iterate through the collection returned by the query.

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Remarks

No public constructors are defined on this class. Object instances are created by using CreateQuery``1(Uri) or CreateQuery<T> on the DataServiceContext class.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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