How can I create a list of classes in C# to iterate over in a loop

Posted by Jean-Bernard Pellerin on Stack Overflow See other posts from Stack Overflow or by Jean-Bernard Pellerin
Published on 2010-05-06T21:34:54Z Indexed on 2010/05/06 21:48 UTC
Read the original article Hit count: 200

Filed under:

c#

|

class

|

list

|

inheritance

|

oop

Suppose I have class animal and classes cat and dog extending it. I want to do something along the lines of:

foreach (animal a in {cat, dog})  
    if (a.isValid(parameters))  
      doStuff();

My only alternative is a switch statement for each class, something I'd like to avoid.

Thanks,
J-B

© Stack Overflow or respective owner

Related posts about c#

.NET WebRequest.PreAuthenticate not quite what it sounds like

as seen on West-Wind - Search for 'West-Wind'
I’ve run into the problem a few times now: How to pre-authenticate .NET WebRequest calls doing an HTTP call to the server – essentially send authentication credentials on the very first request instead of waiting for a server challenge first? At first glance this sound like it should be easy:… >>> More
HttpWebRequest and Ignoring SSL Certificate Errors

as seen on West-Wind - Search for 'West-Wind'
Man I can't believe this. I'm still mucking around with OFX servers and it drives me absolutely crazy how some these servers are just so unbelievably misconfigured. I've recently hit three different 3 major brokerages which fail HTTP validation with bad or corrupt certificates at least according to… >>> More
Dynamic Type to do away with Reflection

as seen on West-Wind - Search for 'West-Wind'
The dynamic type in C# 4.0 is a welcome addition to the language. One thing I’ve been doing a lot with it is to remove explicit Reflection code that’s often necessary when you ‘dynamically’ need to walk and object hierarchy. In the past I’ve had a number of ReflectionUtils that used string based expressions… >>> More
The dynamic Type in C# Simplifies COM Member Access from Visual FoxPro

as seen on West-Wind - Search for 'West-Wind'
I’ve written quite a bit about Visual FoxPro interoperating with .NET in the past both for ASP.NET interacting with Visual FoxPro COM objects as well as Visual FoxPro calling into .NET code via COM Interop. COM Interop with Visual FoxPro has a number of problems but one of them at least got a lot… >>> More
Finding a Relative Path in .NET

as seen on West-Wind - Search for 'West-Wind'
Here’s a nice and simple path utility that I’ve needed in a number of applications: I need to find a relative path based on a base path. So if I’m working in a folder called c:\temp\templates\ and I want to find a relative path for c:\temp\templates\subdir\test.txt I want to receive back subdir\test… >>> More

Related posts about class

DIV is picking max-width value as width value for DIV.

as seen on Stack Overflow - Search for 'Stack Overflow'
I am facing a problem after applying max-width hack for IE7. In mozilla, width of the div is flexible and adjustable as per the image width in the div. But in IE7 it is taking the max-width as width of DIV. Below is my HTML code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"… >>> More
Getting Information About Class Programatically (methods in class/properties of class)

as seen on C# Corner - Search for 'C# Corner'
This article will teach you how to get information about some class like how many methods are there in class, how many properties are there etc.. >>> More
Nested class - calling the nested class from the parent class

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a class whereby a method calls a nested class. I want to access the parent class properties from within the nested class. public class ParentClass { private x; private y; private z; something.something = new ChildClass public class ChildClass { need to get x, y and z; } } How do I… >>> More
making class accessible from class path in dynamic class loading

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a project created in Eclipse, and I defined an interface and a class for dynamic class loading, the class is in the project directory, so I have this code in my project: if (handlerClassName != null) { TypeHandler typeHandler = null; try { typeHandler =… >>> More
Compare base class part of sub class instance to another base class instance

as seen on Stack Overflow - Search for 'Stack Overflow'
I have number of DTO classes in a system. They are organized in an inheritance hierarchy. class Person { public int Id { get; set; } public string FirstName { get; set; } public string ListName { get; set; } } class PersonDetailed : Person { public string WorkPhone { get; set; } … >>> More