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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...
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Is there an alternative to bastard injection? (AKA poor man's injection via default constructor)

I most commonly am tempted to use "bastard injection" in a few cases. When I have a "proper" dependency-injection constructor: ...
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What is a difference between

What is the difference between <? super E> and <? extends E> ? 9 Answers ...
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Efficiency of purely functional programming

Does anyone know what is the worst possible asymptotic slowdown that can happen when programming purely functionally as opposed to imperatively (i.e. allowing side-effects)? ...
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How well is Unicode supported in C++11?

I've read and heard that C++11 supports Unicode. A few questions on that: 5 Answers 5 ...
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Fluid or fixed grid system, in responsive design, based on Twitter Bootstrap

I'm getting confused about the various options in the twitter bootstrap grid , and how they go together. 5 Answers ...
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Iterating over every two elements in a list

How do I make a for loop or a list comprehension so that every iteration gives me two elements? 21 Answers ...
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Add column with constant value to pandas dataframe [duplicate]

Given a DataFrame: 4 Answers 4 ...
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How to keep one variable constant with other one changing with row in excel

Lets say I have one cell A1, which I want to keep constant in a calculation. For example, I want to calculate a value like this: ...
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Convert a Git folder to a submodule retrospectively?

Quite often it is the case that you're writing a project of some kind, and after a while it becomes clear that some component of the project is actually useful as a standalone component (a library, perhaps). If you've had that idea from early on, then there's a fair chance that most of that code is ...