Yes, you can use custom advanced form with web services. Please, review the topic on
Customize the Advanced Form Template
. There is a section further down called -
"How to use the advanced user controls in Client Side binding mode (Web Services)"
Let us know if you have further questions.
the Telerik team
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items.