DataServiceQuery Class
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 | |
|---|---|---|
.gif "Public property") |
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 | |
|---|---|---|
.gif "Public method") |
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. |
.gif "Protected method") |
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 | |
|---|---|---|
.gif "Explicit interface implemetation") .gif "Private method") |
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.