Question

I am running a web server using VB.net and I have a bunch of pages that need to utilize similar functionality, so I was thinking of creating a shared base class that incorporates all of this shared functionality. I created a file call it SharedBaseClass.vb, and I also have a class that should inherit from this class, SubClass.aspx.vb. The Top few lines of the the parent class look like this:

Partial Class SharedBaseClass
    Inherits System.Web.UI.Page

And of the child class that should inherit:

Partial Class SubClass
    Inherits SharedBaseClass

Then at the top of the SubClass.aspx file it looks like this:

<%@ Page Title="" Language="VB" MasterPageFile="~/Main_SA.master" AutoEventWireup="false" Src="SubClass.aspx.vb" Inherits="SubClass" %>

Assume that all of these files are located in the same directory.

But when I try to run this, I get an error:
Compiler Error Message: BC30002: Type ‘SharedBaseClass’ is not defined.
And then the highlighted error is on the line that reads: Inherits SharedBaseClass

I’ve also tried importing the file to no avail. What am I doing wrong?

Answer 1

One other item to check, which isn’t as big an issue in VB.Net as it is in C# is to make sure that if you have a Namespace specified in SharedBaseClass, that the same Namespace is specified for the inherited classes.