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GacInstalled Class

Confirms that a code assembly originates in the global assembly cache (GAC) as evidence for policy evaluation. This class cannot be inherited.

System.Object
  System.Security.Policy.EvidenceBase
    System.Security.Policy.GacInstalled

Namespace:  System.Security.Policy
Assembly:  mscorlib (in mscorlib.dll)
'Declaration
<SerializableAttribute> _
<ComVisibleAttribute(True)> _
Public NotInheritable Class GacInstalled _
	Inherits EvidenceBase _
	Implements IIdentityPermissionFactory

The GacInstalled type exposes the following members.

  NameDescription
Public methodGacInstalledInitializes a new instance of the GacInstalled class.
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  NameDescription
Public methodCloneCreates a new object that is a copy of the current instance. (Overrides EvidenceBase.Clone.)
Public methodCopyCreates an equivalent copy of the current object.
Public methodCreateIdentityPermissionCreates a new identity permission that corresponds to the current object.
Public methodEqualsIndicates whether the current object is equivalent to the specified object. (Overrides Object.Equals(Object).)
Public methodGetHashCodeReturns a hash code for the current object. (Overrides Object.GetHashCode.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodToStringReturns a string representation of the current object. (Overrides Object.ToString.)
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The presence of GacInstalled evidence produces a GacIdentityPermission in the grant set. If there is a Demand for GacIdentityPermission, the GacIdentityPermission that corresponds to the GacInstalled evidence is compared with the demanded permission.

The following code example shows the use of the GacInstalled class.

Imports System
Imports System.Security.Policy
Imports System.Security
Imports System.Security.Permissions
Imports Microsoft.VisualBasic

Class GacDemo
    <STAThread()> _
    Overloads Shared Sub Main(ByVal args() As String)
        Dim myGacInstalled As New GacInstalled

        Dim hostEvidence() As Object = {myGacInstalled}
        Dim assemblyEvidence() As Object 
        Dim myEvidence As New Evidence(hostEvidence, assemblyEvidence)
        Dim myPerm As GacIdentityPermission = _
            CType(myGacInstalled.CreateIdentityPermission(myEvidence), _ 
            GacIdentityPermission)
        Console.WriteLine(myPerm.ToXml().ToString())

        Dim myGacInstalledCopy As GacInstalled = _
            CType(myGacInstalled.Copy(), GacInstalled)
        Dim result As Boolean = myGacInstalled.Equals(myGacInstalledCopy)

        Console.WriteLine( _
            ("Hashcode = " & myGacInstalled.GetHashCode().ToString()))

        Console.WriteLine(myGacInstalled.ToString())
    End Sub 'Main 
End Class 'GacDemo

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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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