DataServiceQuery<TElement> Class

Represents a single query request to a data service.

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 Class DataServiceQuery(Of TElement) _
    Inherits DataServiceQuery _
    Implements IQueryable(Of TElement), IEnumerable(Of TElement),  _
    IQueryable, IEnumerable
'Usage
Dim instance As DataServiceQuery(Of TElement)

public class DataServiceQuery<TElement> : DataServiceQuery, 
    IQueryable<TElement>, IEnumerable<TElement>, IQueryable, IEnumerable

generic<typename TElement>
public ref class DataServiceQuery : public DataServiceQuery, 
    IQueryable<TElement>, IEnumerable<TElement>, IQueryable, IEnumerable

type DataServiceQuery<'TElement> =  
    class 
        inherit DataServiceQuery 
        interface IQueryable<'TElement>
        interface IEnumerable<'TElement>
        interface IQueryable 
        interface IEnumerable 
    end

JScript does not support generic types and methods.

Type Parameters

• TElement
  Type of results returned by the query.

The DataServiceQuery<TElement> type exposes the following members.

Properties

	Name	Description
	ElementType	Returns the type of the object used in the template to create the DataServiceQuery<TElement> instance. (Overrides DataServiceRequest.ElementType.)
	Expression	Represents an expression containing the query to the data service. (Overrides DataServiceQuery.Expression.)
	Provider	Represents the query provider instance. (Overrides DataServiceQuery.Provider.)
	RequestUri	Get the URI for the query. (Overrides DataServiceRequest.RequestUri.)

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Methods

	Name	Description
	AddQueryOption	Creates a new DataServiceQuery<TElement> with the query option set in the URI generated by the returned query.
	BeginExecute	Starts an asynchronous network operation that executes the query represented by this object instance.
	EndExecute	Ends an asynchronous query request to a data service.
	Equals	(Inherited from Object.)
	Execute	Executes the query and returns the results as a collection that implements IEnumerable.Not supported by the WCF Data Services 5.0 client for Silverlight.
	Expand(String)	Expands a query to include entities from a related entity set in the query response.
	Expand<TTarget>(Expression<Func<TElement, TTarget>>)	Expands a query to include entities from a related entity set in the query response, where the related entity is of a specific type in a type hierarchy.
	Finalize	(Inherited from Object.)
	GetEnumerator	Executes the query and returns the results as a collection.
	GetHashCode	(Inherited from Object.)
	GetType	(Inherited from Object.)
	IncludeTotalCount	Requests that the count of all entities in the entity set be returned inline with the query results.
	MemberwiseClone	(Inherited from Object.)
	ToString	Represents the URI of the query to the data service. (Overrides Object.ToString().)

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Explicit Interface Implementations

	Name	Description
	IEnumerable.GetEnumerator	Executes the query and returns the results as a collection.
	IEnumerable<TElement>.GetEnumerator	Executes the query and returns the result as a collection.Supported only by the WCF Data Services 5.0 client for Silverlight.

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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.

See Also

Reference

System.Data.Services.Client Namespace