ActivationContext Class (System)

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.NET Framework Class Library
ActivationContext Class

Identifies the activation context for the current application. This class cannot be inherited.

Inheritance Hierarchy
System.Object
  System.ActivationContext

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)
Syntax
Visual Basic
<SerializableAttribute> _
<ComVisibleAttribute(False)> _
Public NotInheritable Class ActivationContext _
	Implements IDisposable, ISerializable
C#
[SerializableAttribute]
[ComVisibleAttribute(false)]
public sealed class ActivationContext : IDisposable, 
	ISerializable
Visual C++
[SerializableAttribute]
[ComVisibleAttribute(false)]
public ref class ActivationContext sealed : IDisposable, 
	ISerializable
F#
[<Sealed>]
[<SerializableAttribute>]
[<ComVisibleAttribute(false)>]
type ActivationContext =  
    class
        interface IDisposable
        interface ISerializable
    end

The ActivationContext type exposes the following members.

Properties
  Name Description
Public property ApplicationManifestBytes Gets the ClickOnce application manifest for the current application.
Public property DeploymentManifestBytes Gets the ClickOnce deployment manifest for the current application.
Public property Form Gets the form, or store context, for the current application.
Public property Identity Gets the application identity for the current application.
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Methods
  Name Description
Public method Static member CreatePartialActivationContext(ApplicationIdentity) Initializes a new instance of the ActivationContext class using the specified application identity.
Public method Static member CreatePartialActivationContext(ApplicationIdentity, String[]) Initializes a new instance of the ActivationContext class using the specified application identity and array of manifest paths.
Public method Dispose Releases all resources used by the ActivationContext.
Public method Equals(Object) Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected method Finalize Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public method GetHashCode Serves as a hash function for a particular type. (Inherited from Object.)
Public method GetType Gets the Type of the current instance. (Inherited from Object.)
Protected method MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
Public method ToString Returns a string that represents the current object. (Inherited from Object.)
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Explicit Interface Implementations
  Name Description
Explicit interface implemetation Private method ISerializable.GetObjectData Infrastructure. Populates a SerializationInfo with the data needed to serialize the target object.
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Remarks

The ActivationContext class contains an ApplicationIdentity and provides internal-only access to the application manifest. The activation context is used during manifest-based activation to set up the domain policy and provide an application-based security model. For more information, see the ApplicationSecurityManager class.

Examples

The following code example demonstrates the use of an ActivationContext object to obtain the ApplicationIdentity for a manifest-based application. For correct results, execute this code example as a manifest-based application.

Visual Basic

Imports System
Imports System.Collections
Imports System.Text
Imports System.Security.Policy
Imports System.Reflection
Imports System.Security
Imports System.Security.Permissions

Public Class Program
    Inherits MarshalByRefObject

    <SecurityPermission(SecurityAction.LinkDemand, ControlDomainPolicy:=True)> _
    Public Shared Sub Main(ByVal args() As String) 
        Dim ac As ActivationContext = AppDomain.CurrentDomain.ActivationContext
        Dim ai As ApplicationIdentity = ac.Identity
        Console.WriteLine("Full name = " + ai.FullName)
        Console.WriteLine("Code base = " + ai.CodeBase)
        Console.Read()

    End Sub 'Main

    <SecurityPermission(SecurityAction.LinkDemand, ControlDomainPolicy:=True)> _
    Public Sub Run() 
        Main(New String() {})
        Console.ReadLine()

    End Sub 'Run
End Class 'Program
C#

using System;
using System.Collections;
using System.Text;
using System.Security.Policy;
using System.Reflection;
using System.Security;
using System.Security.Permissions;

namespace ActivationContextSample
{
    public class Program : MarshalByRefObject
    {
        [SecurityPermission(SecurityAction.LinkDemand, ControlDomainPolicy=true)]
        public static void Main(string[] args)
        {
            ActivationContext ac = AppDomain.CurrentDomain.ActivationContext;
            ApplicationIdentity ai = ac.Identity;
            Console.WriteLine("Full name = " + ai.FullName);
            Console.WriteLine("Code base = " + ai.CodeBase);

            Console.Read();
        }
        [SecurityPermission(SecurityAction.LinkDemand, ControlDomainPolicy=true)]
        public void Run()
        {
            Main(new string[] { });
            Console.ReadLine();
        }
    }
}
Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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.
See Also

Reference

System Namespace

Other Resources

Publishing ClickOnce Applications