private void OnSerializeCustomSoapHeaders(XmlWriter writer) { object obj = null; if (this.logonType != null) { obj = EwsHelper.CreateSpecialLogonAuthenticationHeader(this.Mailbox, this.logonType.Value, this.budgetType, this.RequiredServerVersion); } else if (this.securityAccessToken != null) { obj = EwsHelper.CreateSerializedSecurityContext(this.Mailbox, this.securityAccessToken); } if (obj != null) { SafeXmlSerializer safeXmlSerializer = new SafeXmlSerializer(obj.GetType()); safeXmlSerializer.Serialize(writer, obj); } }