The Syncfusion native Blazor components library offers 70+ UI and Data Viz web controls that are responsive and lightweight for building modern web apps.
.NET PDF framework is a high-performance and comprehensive library used to create, read, merge, split, secure, edit, view, and review PDF files in C#/VB.NET.
I can answer for Windows forms in VB.NET...
When you add the form to your project, add it as an inherited form. Your base form should automatically appear on the list of components to inherit from.
Or, in the code you just specify that the form should inherit from your base form rather than System.Windows.Forms.Form. For example:
Public Class MyForm
Inherits MyProject.MyBaseForm
instead of
Public Class MyForm
Inherits System.Windows.Forms.Form
HTH,
Ken