I recommend using the ready made DatePicker sample in the latest Sitefinity SDK load it in your project and use Telerik code converter
to convert the existing C# code to VB. Also to if you want to convert SitefinityWebApp to run VB look at this KB
. The sample will keep you from making any mistakes.
Write back if you experience problems.
the Telerik team
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items