Answer Posted / sridhar

For Classes to be generally consumable across your site you should place them in APP_CODE folder.
This simple class will provide global variable

imports Microsoft.VisualBasic
Public Class Sample
Public Shared Text as String ="Global Variable Example"
End Class

Using it in a page

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Init
Me.Title = Sample.Text
End Sub

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