The Binding element contains binding definitions for binding a protocol such as SOAP or HTTP to a Port Type via the 'type' attribute in the WSDL.
A Binding can be added as a root level item. This can be done using the right click context menu.
Name - The name of the Binding, used in the 'binding' attribute of Port.
Port Type - The Port Type to bind against.
Protocol - The protocol extension to bind. Supported extensions are: HTTP GET, HTTP POST, SOAP and SOAP 1.2.
Required - Indicates whether the Extension is necessary for the action to which it refers.
SOAP Extension Properties
Style - Specifies the type of SOAP binding to use, can be either 'document' (default value) or 'rpc'.
Transport - The URI with the specification for HTTP transmission of SOAP data.
HTTP Extension Properties
Verb - Indicates whether the HTTP request will be made using the 'GET' or 'POST' method.
The WSDL code for a simple SOAP Binding to a Port Type named NewPortType:
<binding name="NewBinding" type="tns:NewPortType">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http" />
<soap:operation soapAction="" />