public void Impersonate()
{
WindowsIdentity identity = WindowsIdentity.GetCurrent();
Console.WriteLine("name:" + identity.Name);
AccessHelper accessHelper = new AccessHelper();
bool result = accessHelper.Impersonate("Users", "");
if (result)
{
WindowsIdentity identity2 = WindowsIdentity.GetCurrent();
Console.WriteLine("name:" + identity2.Name);
}
accessHelper.CancelImpersonate();
}