System.Configuration.ClientSettingsStore.QuotaEnforcedStream.EnsureQuota C# (CSharp) Метод

            private void EnsureQuota(long size) {
                IsolatedStoragePermission storagePerm = new IsolatedStorageFilePermission(PermissionState.None);
                storagePerm.UserQuota = size;
                storagePerm.UsageAllowed = _isRoaming? IsolatedStorageContainment.DomainIsolationByRoamingUser :
                                                       IsolatedStorageContainment.DomainIsolationByUser;
                storagePerm.Demand();
            }
        }