New Code without Recompilation - how can this be done?

[pbd22]

Hi. I have been asked to do a rather odd thing by my employer. I have
to add a new feature to an old project that "should not know about the
change". This is a bit of an odd request but just assume that my
reasons for doing what I need to do cannot change.

Assume that I need to add a list box to the pre-existing project page
that uses some server code to grab its value.

The ony way I can think of doing this is to open notepad on
the given aspx file (Default.aspx) and add a client script with an
ajax call to some server page that handles the request and returns the
value that needs to go in the text box.

The question I have - is it possible to place the AJAX server page
under the root level of the project that I cannot recomplie? Will this
work? Does the project need to "know" about the ajax page or can it
live in the project without it being complied code? Or, do I have to
make a call external to the "non-recomplied" project?

In essense, how can i add a list box to a pre-existing project and
call values from new server code without recompiling the project?

I know this is weird but it is what I have been asked to do.

Please help!!

Thanks.

 

[Ignacio Machin ( .NET/ C# MVP )]

Hi. I have been asked to do a rather odd thing by my employer. I have
to add a new feature to an old project that "should not know about the
change". This is a bit of an odd request but just assume that my
reasons for doing what I need to do cannot change.

Assume that I need to add a list box to the pre-existing project page
that uses some server code to grab its value.

The ony way I can think of doing this is to open notepad on
the given aspx file (Default.aspx) and add a client script with an
ajax call to some server page that handles the request and returns the
value that needs to go in the text box.

The question I have - is it possible to place the AJAX server page
under the root level of the project that I cannot recomplie? Will this
work? Does the project need to "know" about the ajax page or can it
live in the project without it being complied code? Or, do I have to
make a call external to the "non-recomplied" project?

In essense, how can i add a list box to a pre-existing project and
call values from new server code without recompiling the project?

I know this is weird but it is what I have been asked to do.

Please help!!

Thanks.

Hi,

Well you might be even more surprised to know that it can be done
First, you need to modify the aspx, in there you change the @page
directive and especifically the Inherits attribute , you set the new
value to the name of a class you are going to create: MyClassA

then you make this new class inherit from the "old" class:
so if you have this:
<%@ Page Language="C#" Codebehind="Default.aspx.cs"
Inherits="Default" %>
and n the code behind:
public partial class Default: Page

you end with
<%@ Page Language="C#" Codebehind="Default1.aspx.cs"
Inherits="myNewPage" %>
and n the code behind:
public partial class myNewPage: Default