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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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Search All Fields In All Tables For A Specific Value (Oracle)

Is it possible to search every field of every table for a particular value in Oracle? 16 Answers ...
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Favourite performance tuning tricks [closed]

When you have a query or stored procedure that needs performance tuning, what are some of the first things you try? 29 Answ...
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Why is argc not a constant?

As Effective C++ Item#3 states "Use const whenever possible", I start thinking "why not make these 'constant' parameters const "?. ...
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How do I sort unicode strings alphabetically in Python?

Python sorts by byte value by default, which means é comes after z and other equally funny things. What is the best way to sort alphabetically in Python? ...
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Why does DEBUG=False setting make my django Static Files Access fail?

Am building an app using Django as my workhorse. All has been well so far - specified db settings, configured static directories, urls, views etc. But trouble started sneaking in the moment I wanted to render my own beautiful and custom 404.html and 500.html pages. ...
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Cross-browser multi-line text overflow with ellipsis appended within a fixed width and height

I made an image for this question to make it easier to understand. 25 Answers 25 ...
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jQuery's jquery-1.10.2.min.map is triggering a 404 (Not Found)

I'm seeing error messages about a file, min.map , being not found: 11 Answers 11 ...
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How can I delete a service in Windows?

I have a couple old services that I want to completely uninstall. How can I do this? 13 Answers ...
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Test if a class has an attribute?

I'm trying to do a little Test-First development, and I'm trying to verify that my classes are marked with an attribute: 4 ...