How to call asmx web service dynamically

Question

i often add asmx web service reference to my project and then i call the 3rd party web service. so i like to know how could i consume and call asmx web service dynamically without adding web service reference to client. please help me with code.

 

 

 if possible then please discuss all possible ways to call asmx web service from dotnet client. looking for details guidance. thanks