Writing Shared Subroutines in a Class

Question

User-72198832 posted

The following gives error on both Session() and Server.mappath() functions
Error is " "Cannot refer to an instance member of a class from within a shared method...."

Need to write some subroutines that can be called from other forms

See my code below.

Any Suggestions?

Lee

Public Class CommonFunctions
    Inherits System.Web.UI.Page

    Public Shared Sub GetPdfFile(ByVal FileIndex As String, ByVal Index As String)
        
        Dim FILENAME As String = Server.MapPath("data\" & Session("Serial") & "\Command.txt")

Answer 1

User2019981500 posted

Hi I believe it is because of

Dim FILENAME As String 
Try to change above statement with below

 Private Shared FILENAME As String

Refer this article

http://support.microsoft.com/kb/308371

Answer 2

User-72198832 posted

Sorry, that's not the problem.

Any other ideas?

This is valid....

Public Sub MySub ()

    Session("XXX")=Server.mappath()

end sub

This is not....

Public Shared Sub MySub ()

    Session("XXX")=Server.mappath()

end sub

Answer 3

User1642208711 posted

Session and Server properties are instance based. It cannot be accessed from a shared method.

Use HttpContext.Current property to access those properties.

Change below code

Session("XXX")=Server.mappath()

to

HttpContext.Current.Session("XXX")=HttpContext.Current.Server.mappath()

Answer 4

User2019981500 posted

Raja is right..

Answer 5

User-72198832 posted

Raja:

Works great!

Thanks

Lee