JPJagadeesan Pichaimuthu Syncfusion Team February 11, 2019 02:29 AM
Thanks for using Syncfusion product.
Based on your query, we are trying to prepare sample in VB and used your code. But, we are facing error as base type has been mismatched in designer.vb as it inherits from Form and modifying the base type to RibbonForm in this class resolves the error. Also, RibbonControlAdv has been displayed on the top of the RibbonForm in both designer and run time. So, we request you to ensure whether you are inheriting RibbonForm in designer.vb of your application We have prepared simple sample for your reference and it can be downloaded from below location.