can i add new subscriber's list and new clients in my .net application by using the API? If possible can you send me the sample code?
Sure can, checkout http://campaignmonitor.com/api/samples/ for our code samples.
The API code which you mentioned contains the method which is used to add a new subscriber in an exiting subscriber’s list. But I want to add a new subscribers list by using the API.I was trying to create a new campaign by using the API. It asked the listID. So, I need listID.
I'm wondering if this same thing is possible.
OK, you can't create lists via the API, just add or remove people from existing lists. To get the ListID you would have to create the list in your Campaign Monitor account first.