When overridden in a derived class, invokes the method that is specified in the provided IMessage on the remote object that is represented by the current instance.
Namespace:
System.Runtime.Remoting.Proxies
Assembly:
mscorlib (in mscorlib.dll)
Visual Basic (Declaration)
Public MustOverride Function Invoke ( _
msg As IMessage _
) As IMessage
Dim instance As RealProxy
Dim msg As IMessage
Dim returnValue As IMessage
returnValue = instance.Invoke(msg)
public abstract IMessage Invoke(
IMessage msg
)
public:
virtual IMessage^ Invoke(
IMessage^ msg
) abstract
public abstract function Invoke(
msg : IMessage
) : IMessage
When the transparent proxy that is backed by the RealProxy is called, it delegates the calls to the Invoke method. The Invoke method transforms the message in the msg parameter into a IMethodCallMessage, and sends it to the remote object that is represented by the current instance of RealProxy.
The IMessage parameter provides a dictionary through the IMessage..::.Properties property. The dictionary contains name/value pairs of information about the method call, such as the name of the method called and its parameters.
Public Overrides Function Invoke(myMessage As IMessage) As IMessage
Console.WriteLine("MyProxy 'Invoke method' Called...")
If TypeOf myMessage Is IMethodCallMessage Then
Console.WriteLine("IMethodCallMessage")
End If
If TypeOf myMessage Is IMethodReturnMessage Then
Console.WriteLine("IMethodReturnMessage")
End If
If TypeOf myMessage Is IConstructionCallMessage Then
' Initialize a new instance of remote object
Dim myIConstructionReturnMessage As IConstructionReturnMessage = _
Me.InitializeServerObject(CType(myMessage, IConstructionCallMessage))
Dim constructionResponse As _
New ConstructionResponse(Nothing, CType(myMessage, IMethodCallMessage))
Return constructionResponse
End If
Dim myIDictionary As IDictionary = myMessage.Properties
Dim returnMessage As IMessage
myIDictionary("__Uri") = myUri
' Synchronously dispatch messages to server.
returnMessage = ChannelServices.SyncDispatchMessage(myMessage)
' Pushing return value and OUT parameters back onto stack.
Dim myMethodReturnMessage As IMethodReturnMessage = _
CType(returnMessage, IMethodReturnMessage)
Return returnMessage
End Function 'Invoke
public override IMessage Invoke(IMessage myMessage)
{
Console.WriteLine("MyProxy 'Invoke method' Called...");
if (myMessage is IMethodCallMessage)
{
Console.WriteLine("IMethodCallMessage");
}
if (myMessage is IMethodReturnMessage)
{
Console.WriteLine("IMethodReturnMessage");
}
if (myMessage is IConstructionCallMessage)
{
// Initialize a new instance of remote object
IConstructionReturnMessage myIConstructionReturnMessage =
this.InitializeServerObject((IConstructionCallMessage)myMessage);
ConstructionResponse constructionResponse = new
ConstructionResponse(null,(IMethodCallMessage) myMessage);
return constructionResponse;
}
IDictionary myIDictionary = myMessage.Properties;
IMessage returnMessage;
myIDictionary["__Uri"] = myUri;
// Synchronously dispatch messages to server.
returnMessage = ChannelServices.SyncDispatchMessage(myMessage);
// Pushing return value and OUT parameters back onto stack.
IMethodReturnMessage myMethodReturnMessage = (IMethodReturnMessage)returnMessage;
return returnMessage;
}
virtual IMessage^ Invoke( IMessage^ myMessage ) override
{
Console::WriteLine( "MyProxy 'Invoke method' Called..." );
if ( dynamic_cast<IMethodCallMessage^>(myMessage) )
{
Console::WriteLine( "IMethodCallMessage*" );
}
if ( dynamic_cast<IMethodReturnMessage^>(myMessage) )
{
Console::WriteLine( "IMethodReturnMessage*" );
}
if ( dynamic_cast<IConstructionCallMessage^>(myMessage) )
{
// Initialize a new instance of remote object
IConstructionReturnMessage^ myIConstructionReturnMessage = this->InitializeServerObject( static_cast<IConstructionCallMessage^>(myMessage) );
ConstructionResponse^ constructionResponse = gcnew ConstructionResponse( nullptr,static_cast<IMethodCallMessage^>(myMessage) );
return constructionResponse;
}
IDictionary^ myIDictionary = myMessage->Properties;
IMessage^ returnMessage;
myIDictionary[ "__Uri" ] = myUri;
// Synchronously dispatch messages to server.
returnMessage = ChannelServices::SyncDispatchMessage( myMessage );
// Pushing return value and OUT parameters back onto stack.
IMethodReturnMessage^ myMethodReturnMessage = dynamic_cast<IMethodReturnMessage^>(returnMessage);
return returnMessage;
}
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
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.
.NET Framework
Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
Reference