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DataServiceQuery.BeginExecute Method

.NET Framework 3.5

Asynchronously sends a request to execute the data service query.

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

Syntax

C++

JScript

public IAsyncResult BeginExecute(
	AsyncCallback callback,
	Object state
)

Parameters

callback: Type: System.AsyncCallback
Delegate to invoke when results are available for client consumption.

state: Type: System.Object
User-defined state object passed to the callback.

Return Value

Type: System.IAsyncResult
An IAsyncResult object that is used to track the status of the asynchronous operation.

Remarks

The returned IAsyncResult object is used to determine when the asynchronous operation has completed. For more information, see Asynchronous Operations (ADO.NET Data Services).

The BeginExecute method uses the same semantics as the Execute method, however BeginExecute asynchronously sends the request so that the call does not block processing while waiting for the results from the service. According to the standard begin-end asynchronous pattern, the provided callback is invoked when query results are retrieved.

Platforms

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.

Version Information

.NET Framework

Supported in: 3.5 SP1

Reference

DataServiceQuery Class

DataServiceQuery Members

System.Data.Services.Client Namespace

Other Resources

Asynchronous Operations (ADO.NET Data Services)

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