Thanks for Eliyahu's input.
Hi Goran,
As Eliyahu has suggested, to getting the base type from OO and inheritance
perspective is not quite realistic and recommended. However, based on
my
understanding on your scenario, what you want to do is actually get some
information in the base class so as to determine which concrete child page
is the current running one, correct?
I've performed some research and the following ways should be some
possible
means:
** Since the base class is Page(which also derived from Control class),
you
can use the "this.Page" property to get the current running page class and
reflect its type.
** Or I think it is better to use some control or markup on the page to
detect the current page since you can use "this.Page.Controls" to get
the
running page's Control collection. For example, this.Page.Title can give
you the page title.
Here is a test base page class I used for test and it works well:
sample base page >>>>>>
public class BasePageClass : Page
{
public string PageTypeName
{
get
{
return this.Page.GetType().FullName;
}
}
public string PageTitle
{
get
{
return this.Page.Title;
}
}
}
<<<<<<<<<<<<<<<<<<<<<<
Hope this helps.
Sincerely,
Steven Cheng
Microsoft MSDN Online Support Lead
==================================================
Get notification to my posts through email? Please refer to
http://msdn.microsoft.com/subscriptions/managednewsgroups/default.aspx#notif
ications.
Note: The MSDN Managed Newsgroup support offering is for non-urgent issues
where an initial response from the community or a Microsoft Support
Engineer within 1 business day is acceptable. Please note that each follow
up response may take approximately 2 business days as the support
professional working with you may need further investigation to reach
the
most efficient resolution. The offering is not appropriate for
situations
that require urgent, real-time or phone-based interactions or complex
project analysis and dump analysis issues. Issues of this nature are
best
handled working with a dedicated Microsoft Support Engineer by
contacting
Microsoft Customer Support Services (CSS) at
http://msdn.microsoft.com/subscriptions/support/default.aspx.
==================================================
This posting is provided "AS IS" with no warranties, and confers no
rights.
--------------------
From: "Eliyahu Goldin" <
[email protected]>
References: <#
[email protected]>
<
[email protected]>
<
[email protected]>
Subject: Re: Retrieving derived class name inside base class
Date: Tue, 11 Sep 2007 00:36:35 +0200
You can always call GetType() method, can't you?
--
Eliyahu Goldin,
Software Developer & Consultant
Microsoft MVP [ASP.NET]
http://msmvps.com/blogs/egoldin
Eliyahu, thanks, but I would not like to have to type anything on the
derived classes (not even override methods), if possible.
Maybe I should explain the problem in detail. What I am trying to do is
re-use a menu control and its methods on 10 different web pages with as
less
coding as possible. So, here is how I planned to do it:
- have every .aspx page contain a menu control (nothing declared in the
code-behind, because it would conflict with the base class)
- have a base class contain all the methods for menu control (plus base
class inherits from System.Web.UI.Page)
- have every page inherit from a base class
- every page has a subset of menu items, which is filterred based on
what
the page (class name) is, and this is where the problem is, because I
cannot
retrieve the name of the derived class from within the base class.
Wish I could use multiple inheritance (without having to use the
interfaces).
Thanks
Goran
message It would be very much against the whole idea of inheritance. Instead you
should make a virtual GetData method in the base class and override it
in
the derived classes.
--
Eliyahu Goldin,
Software Developer
Microsoft MVP [ASP.NET]
http://msmvps.com/blogs/egoldin
http://usableasp.net
Hi all,
Is there a way to retrieve a derived class name inside a subroutine or
a
function of the base class? I am trying to get some data from the
database, based on which derived class is calling the subroutine. I
know
the base class name can be retrieved by using reflection namespace:
System.Reflection.MethodBase.GetCurrentMethod.DeclaringType.Name.
Thanks
Goran