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Showing content from https://docs.microsoft.com/en-us/dotnet/api/system.enterpriseservices.servicedcomponent below:

ServicedComponent Class (System.EnterpriseServices) | Microsoft Learn

ServicedComponent Class Definition

Represents the base class of all classes using COM+ services.

public ref class ServicedComponent abstract : ContextBoundObject, IDisposable, System::EnterpriseServices::IRemoteDispatch, System::EnterpriseServices::IServicedComponentInfo

[System.Serializable]
public abstract class ServicedComponent : ContextBoundObject, IDisposable, System.EnterpriseServices.IRemoteDispatch, System.EnterpriseServices.IServicedComponentInfo

[<System.Serializable>]
type ServicedComponent = class
    inherit ContextBoundObject
    interface IRemoteDispatch
    interface IDisposable
    interface IServicedComponentInfo

Public MustInherit Class ServicedComponent
Inherits ContextBoundObject
Implements IDisposable, IRemoteDispatch, IServicedComponentInfo

Inheritance

Derived

Attributes

Implements

Examples

The following code example demonstrates how to expose a class as a configured COM component.


[assembly:ApplicationName("Calculator")];
[assembly:ApplicationActivation(ActivationOption::Library)];
[assembly:System::Reflection::AssemblyKeyFile("Calculator.snk")];
public ref class Calculator: public ServicedComponent
{
public:
   int Add( int x, int y )
   {
      return (x + y);
   }

};

using System;
using System.EnterpriseServices;

[assembly: ApplicationName("Calculator")]
[assembly: ApplicationActivation(ActivationOption.Library)]
[assembly: System.Reflection.AssemblyKeyFile("Calculator.snk")]
public class Calculator : ServicedComponent
{
    public int Add (int x, int y)
    {
        return(x+y);
    }
}

To deploy this class as a configured COM component, you must generate a strong key, compile the class as a library, and register the library. These three steps are accomplished by the following three commands.

sn -k Calculator.snk
csc /t:library Calculator.cs
regsvcs Calculator.dll

Under certain conditions, a class that is derived from ServicedComponent that runs in a COM+ application may stop responding. This problem is caused by an Activity deadlock. Activities can deadlock on multithreaded applications because of an asynchronous cleanup of component references. To work around this problem, call the Dispose method when you complete work with objects derived from ServicedComponent.

Note

Client code must call Dispose on serviced components to ensure proper operation.

Constructors Methods Explicit Interface Implementations

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