I have a project that uses an asmx file with [WebMethods] and [SoapHeader("Auth")]. I have no experience using SOAP and don't understand how it works yet.
Going through the code I noticed that you can use a variable with the same name as the header and it contains the data. How is the data sent to the header? Where does it come from?
The data comes from XML within the <soap:Header> section of the SOAP envelope.