Add namespace to WSDL definition - asp.net

Question

I have a very BASIC WCF service with WSDL defition as follows:
<wsdl:definitions
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/"
xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd"
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/"
xmlns:tns="urn:MyService"
xmlns:wsa="http://schemas.xmlsoap.org/ws/2004/08/addressing"
xmlns:wsx="http://schemas.xmlsoap.org/ws/2004/09/mex"
xmlns:wsap="http://schemas.xmlsoap.org/ws/2004/08/addressing/policy"
xmlns:wsaw="http://www.w3.org/2006/05/addressing/wsdl"
xmlns:msc="http://schemas.microsoft.com/ws/2005/12/wsdl/contract"
xmlns:wsp="http://schemas.xmlsoap.org/ws/2004/09/policy"
xmlns:wsa10="http://www.w3.org/2005/08/**addressing"
xmlns:wsam="http://www.w3.org/2007/05/addressing/metadata"
name="MyService" targetNamespace="urn:MyService">
I want to add the namespace xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" to the definition but i don't know where and how.
How do i add that namespace ? Thank you

Answer 1

Just edit and add the string xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
An example:
<definitions
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/"
xmlns:tns="http://example.com/"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/"
xmlns:http="http://schemas.xmlsoap.org/wsdl/http/"
name="WebServiceName"
targetNamespace="http://example.com/"
xmlns="http://schemas.xmlsoap.org/wsdl/">