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Drag and drop files into WPF

...ing you have one file that you care about, pass it off to whatever // handling code you have defined. HandleFileOpen(files[0]); } } Also, don't forget to actually hook up the event in XAML, as well as setting the AllowDrop attribute. <StackPanel Name="ImagePanel" Drop="ImagePanel_Dro...
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Using Pylint with Django

... or generated-members. Use an actively developed Pylint plugin that understands Django. This Pylint plugin for Django works quite well: pip install pylint-django and when running pylint add the following flag to the command: --load-plugins pylint_django Detailed blog post here. ...
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The easiest way to transform collection to array?

...t a size 0 array, it will make a new array, meaning you have a small array and a large array being made when such is unnecessary. – corsiKa Jul 20 '10 at 21:42 4 ...
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Python matplotlib multiple bars

...lotlib, when I tried to call the bar function multiple times, they overlap and as seen the below figure the highest value red can be seen only. How can I plot the multiple bars with dates on the x-axes? ...
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Why are C# 4 optional parameters defined on interface not enforced on implementing class?

...ks for the great question! Suppose you have an interface as you describe, and a hundred classes that implement it. Then you decide to make one of the parameters of one of the interface's methods optional. Are you suggesting that the right thing to do is for the compiler to force the developer to fi...
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How can I find the length of a number?

...34567; x.toString().length; This process will also work forFloat Number and for Exponential number also. share | improve this answer | follow | ...
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How do you auto format code in Visual Studio?

I know Visual Studio can auto format to make my methods and loops indented properly, but I cannot find the setting. 30 Answ...
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how to solve “ruby installation is missing psych” error?

...3. even though it was successfully installed, it complained about libyaml. and now every time i wanna install a gem (say rails) this warning shows up: ...
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How to find out the number of CPUs using python

...is not in use), multiprocessing.cpu_count() is the way to go in Python 2.6 and newer. The following method falls back to a couple of alternative methods in older versions of Python: import os import re import subprocess def available_cpu_count(): """ Number of available virtual or physical CP...
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How to get distinct values for non-key column fields in Laravel?

... I have a table "messages" (used for a chat), and I want to get the latest message that the authenticated user has received from each conversation. Using groupBy I can get just one message, but I get the first, and I need the last message. Seems that orderBy doesn't work...