/// <summary>
/// Carrega os dados das permissões.
/// </summary>
/// <param name="securityElement"></param>
public void PermissionsFromXml(System.Security.SecurityElement securityElement)
{
securityElement.Require("securityElement").NotNull();
_permissions = new System.Security.PermissionSet(System.Security.Permissions.PermissionState.None);
_permissions.FromXml(securityElement);
}