Hi Asit,
Thank you for your interest in Syncfusion products.
The Dockage package of ASP.NET includes the 'Snap' control. The Snap control provides a framework for your web pages to implement features that will facilitate users to move, dock/float, expand/collapse elements in the web pages.
The online demo's for our Snap samples can be viewed from the below link:
http://www2.syncfusion.com/syncfusion/infrastructure/samplebrowserasp/samples.aspx?version=2_0In the above link please click Docking Package/Snap.
The online documentation link for our Snap control is
http://www2.syncfusion.com/ug/Default.aspx##Essential%20Studio.chm/ToolsWeb/Snap.htmlPlease let us know if you have any other queries.
Regards,
Valli