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UITextView that expands to text using auto layout

... that is laid out completely using auto layout programmatically. I have a UITextView in the middle of the view with items above and below it. Everything works fine, but I want to be able to expand UITextView as text is added. This should push everything below it down as it expands. ...
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What is the proper way to re-throw an exception in C#? [duplicate]

...throw; If you print the trace resulting from "throw ex", you'll see that it ends on that statement and not at the real source of the exception. Basically, it should be deemed a criminal offense to use "throw ex". share ...
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Why does NULL = NULL evaluate to false in SQL server

In SQL server if you have nullParam=NULL in a where clause, it always evaluates to false. This is counterintuitive and has caused me many errors. I do understand the IS NULL and IS NOT NULL keywords are the correct way to do it. But why does SQL server behave this way? ...
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What are the true benefits of ExpandoObject?

The ExpandoObject class being added to .NET 4 allows you to arbitrarily set properties onto an object at runtime. 10 Answ...
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How can I troubleshoot my Perl CGI script?

...is answer is intended as a general framework for working through problems with Perl CGI scripts and originally appeared on Perlmonks as Troubleshooting Perl CGI Scripts. It is not a complete guide to every problem that you may encounter, nor a tutorial on bug squashing. It is just the culmination ...
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Resetting a multi-stage form with jQuery

I have a form with a standard reset button coded thusly: 30 Answers 30 ...
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Emulate a do-while loop in Python?

... implement a do-while loop like this: while True: stuff() if fail_condition: break Or: stuff() while not fail_condition: stuff() What are you doing trying to use a do while loop to print the stuff in the list? Why not just use: for i in l: print i print "done" Update: So do you...
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How can I clear or empty a StringBuilder? [duplicate]

I'm using a StringBuilder in a loop and every x iterations I want to empty it and start with an empty StringBuilder , but I can't see any method similar to the .NET StringBuilder.Clear in the documentation, just the delete method which seems overly complicated. ...
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How to run Conda?

I installed Anaconda and can run Python, so I assume that I installed it correctly. Following this introductory documentation , I am trying to install Python v3.3, so I am copying and pasting the following line into my console: ...
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vector::at vs. vector::operator[]

I know that at() is slower than [] because of its boundary checking, which is also discussed in similar questions like C++ Vector at/[] operator speed or ::std::vector::at() vs operator[] << surprising results!! 5 to 10 times slower/faster! . I just don't understand what the at() met...