VNVadivel Natarajan Syncfusion Team March 12, 2019 10:17 AM UTC
Thanks for contacting Syncfusion support.
We have unlisted the Syncfusion NuGet packages (Ex: Syncfusion.Data.WinForms) which are only perform for dependency purpose. Hence, you cannot upgrade the unlisted packages separately. So, the dependency package will automatically be upgraded when update the parent package. Please use the below command in Package manager Console to update the parent package of Syncfusion.Data.WinForms (dependency package).