Contains the Uniform Resource Locator (URL) of the Web Services Description Language (WSDL) file that describes the Web service specification.
xsd:stringThe wsdlUrl attribute is a required attribute of the webServiceAdapter element.
The following is an example of the wsdlUrl attribute as it is used in the webServiceAdapter element:
<xsf:query>
   <xsf:webServiceAdapter 
      wsdlUrl="http://localhost/infopathwebservicesample/infopathwebservicesample.asmx?WSDL" 
      queryAllowed="yes" 
      submitAllowed="no">
      <xsf:operation 
         name="getOrders" 
         soapAction="http://tempuri.org/getOrders" 
         serviceUrl="http://localhost/infopathwebservicesample/infopathwebservicesample.asmx">
         <xsf:input 
            source="Submit.xml">
         </xsf:input>
      </xsf:operation>
   </xsf:webServiceAdapter>
</xsf:query>