DataAsyncCommand Class

Artikel
02/28/2011

Enables executing data commands in an asynchronous manner.

Inheritance Hierarchy

System.Object
Microsoft.VisualStudio.Data.Framework.DataSiteableObject<IVsDataConnection>
Microsoft.VisualStudio.Data.Framework.DataAsyncCommand

Namespace: Microsoft.VisualStudio.Data.Framework
Assembly: Microsoft.VisualStudio.Data.Framework (in Microsoft.VisualStudio.Data.Framework.dll)

Syntax

'Declaration
Public Class DataAsyncCommand _
    Inherits DataSiteableObject(Of IVsDataConnection) _
    Implements IVsDataAsyncCommand

public class DataAsyncCommand : DataSiteableObject<IVsDataConnection>, 
    IVsDataAsyncCommand

public ref class DataAsyncCommand : public DataSiteableObject<IVsDataConnection^>, 
    IVsDataAsyncCommand

type DataAsyncCommand =  
    class
        inherit DataSiteableObject<IVsDataConnection>
        interface IVsDataAsyncCommand
    end

public class DataAsyncCommand extends DataSiteableObject<IVsDataConnection> implements IVsDataAsyncCommand

The DataAsyncCommand type exposes the following members.

Constructors

	Name	Description
	DataAsyncCommand()	Creates a new instance of the DataAsyncCommand class.
	DataAsyncCommand(IVsDataConnection)	Initializes a new instance of the DataAsyncCommand object with an IVsDataConnection object that is set on the inherited DataSiteableObject<T> object.

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Properties

	Name	Description
	Site	Gets or sets the object site. (Inherited from DataSiteableObject<T>.)

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Methods

	Name	Description
	CancelAsync	Cancels the asynchronous call, returning immediately.
	DeriveParametersAsync	Derives, in an asynchronous manner, a set of parameters for use with a specified command.
	DeriveSchemaAsync	Derives, in an asynchronous manner, the schema of the specified command.
	Equals	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	ExecuteAsync	Executes a command in an asynchronous manner.
	ExecuteWithoutResultsAsync	Executes, in an asynchronous manner, a command that does not return any results beyond an integer value indicating status.
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	OnCancel	Dispatches the asynchronous cancel operation to the appropriate synchronous method.
	OnDeriveParameters	Dispatches the asynchronous derive parameters operation to the synchronous DeriveParameters method call.
	OnDeriveParametersCompleted	Raises the DeriveParametersCompleted event.
	OnDeriveSchema	Dispatches the asynchronous derive schema operation to the synchronous DeriveSchema method call.
	OnDeriveSchemaCompleted	Raises the DeriveSchemaCompleted event.
	OnExecute	Dispatches the asynchronous execute operation to the synchronous Execute method call.
	OnExecuteCompleted	Raises the ExecuteCompleted event.
	OnExecuteWithoutResults	Dispatches the asynchronous execute-without-results operation to the synchronous ExecuteWithoutResults method call.
	OnExecuteWithoutResultsCompleted	Raises the ExecuteWithoutResultsCompleted event.
	OnPrepare	Dispatches the asynchronous prepare operation to the synchronous Prepare method call.
	OnPrepareCompleted	Raises the PrepareCompleted event.
	OnSiteChanged	Raises the SiteChanged event. (Inherited from DataSiteableObject<T>.)
	PrepareAsync	Prepares, in an asynchronous manner, the specified command to be executed against the data source; the command may then be executed multiple times, with varying parameters.
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Events

	Name	Description
	DeriveParametersCompleted	Occurs when the DeriveParametersAsync command is completed.
	DeriveSchemaCompleted	Occurs when the DeriveSchemaAsync command is completed.
	ExecuteCompleted	Occurs when the ExecuteAsync command is completed.
	ExecuteWithoutResultsCompleted	Occurs when the ExecuteWithoutResultsAsync command is completed.
	PrepareCompleted	Occurs when the PrepareAsync command is completed.
	SiteChanged	Occurs when the Site property is changed. (Inherited from DataSiteableObject<T>.)

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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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