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Convert base class to derived class [duplicate]
Is it possible in C# to explicitly convert a base class object to one of it's derived classes? Currently thinking I have to create a constructor for my derived classes that accept a base class object as a parameter and copy over the property values. I don't really like this idea, so I'd like to avoi...
How to check if an NSDictionary or NSMutableDictionary contains a key?
...follow
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edited Feb 18 '13 at 22:56
s4y
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Error in finding last used cell in Excel with VBA
...ces to follow when finding the last row. And hence I will keep on updating it whenever I come across a new scenario/information.
Unreliable ways of finding the last row
Some of the most common ways of finding last row which are highly unreliable and hence should never be used.
UsedRange
xlDown...
What does “program to interfaces, not implementations” mean?
...be done. This can be used to change the behavior of a program at run-time. It also helps you to write far better programs from the maintenance point of view.
Here's a basic example for you.
public enum Language
{
English, German, Spanish
}
public class SpeakerFactory
{
public static ISpea...
What do 'lazy' and 'greedy' mean in the context of regular expressions?
...ressions.info/repeat.html we see the example of trying to match HTML tags with <.+>. Suppose you have the following:
<em>Hello World</em>
You may think that <.+> (. means any non newline character and + means one or more) would only match the <em> and the </em>...
How to make Eclipse behave well in the Windows 7 taskbar?
...e well.
But Eclipse doesn't show recently open projects when I right click it.
It also doesn't allow to pin some projects inside it.
Note that I have the JS version of Eclipse Helios. Which spawns a new and different taskbar icon after loading.
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LINQ Contains Case Insensitive
This code is case sensitive, how to make it case insensitive?
11 Answers
11
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what exactly is device pixel ratio?
...s length. Source: CSS Absolute Lengths
This has lots of implications when it comes to web design, such as preparing high-definition image resources and carefully applying different images at different device pixel ratios. You wouldn't want to force a low-end device to download a very high resolutio...
Easier way to debug a Windows service
...ows Service Control Manager and then attaching the debugger to the thread? It's kind of cumbersome and I'm wondering if there is a more straightforward approach.
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Change app language programmatically in Android
Is it possible to change the language of an app programmatically while still using Android resources?
35 Answers
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