SecurityContext.Run(SecurityContext, ContextCallback, Object) Method

Definition

Namespace:: System.Security

Assemblies:: mscorlib.dll, System.Security.Permissions.dll

Runs the specified method in the specified security context on the current thread.

public:
 static void Run(System::Security::SecurityContext ^ securityContext, System::Threading::ContextCallback ^ callback, System::Object ^ state);

[System.Security.SecurityCritical]
public static void Run (System.Security.SecurityContext securityContext, System.Threading.ContextCallback callback, object state);

static member Run : System.Security.SecurityContext * System.Threading.ContextCallback * obj -> unit

Parameters

securityContext: SecurityContext

The security context to set.

callback: ContextCallback

The delegate that represents the method to run in the specified security context.

state: Object

The object to pass to the callback method.

Attributes: SecurityCriticalAttribute

Exceptions

InvalidOperationException

securityContext is null.

-or-

securityContext was not acquired through a capture operation.

-or-

securityContext has already been used as the argument to a Run(SecurityContext, ContextCallback, Object) method call.

Examples

The following code example shows how to use the Run method to execute a method in a specified security context.

using System;
using System.Security;
using System.Threading;

class Test
{
    static void Main()
    {
        SecurityContext.Run(SecurityContext.Capture(), 
            new ContextCallback(Callback), "Hello world.");
    }
    static void Callback(object o)
    {
        Console.WriteLine(o);
    }
}

Imports System.Security
Imports System.Threading



Class Test
    
    Shared Sub Main() 
        Dim cCallBack As New ContextCallback(AddressOf Callback)
        SecurityContext.Run(SecurityContext.Capture(), cCallBack, "Hello world.")
    End Sub
    
    Shared Sub Callback(ByVal o As Object) 
        Console.WriteLine(o)
    
    End Sub
End Class

Remarks

The security context for the current thread is returned to its previous state when the method call is complete.