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How to get a property value based on the name
... .Single(pi => pi.Name == propertyName)
.GetValue(car, null);
}
If you want to be really fancy, you could make it an extension method:
public static object GetPropertyValue(this object car, string propertyName)
{
return car.GetType().GetProperties()
.Single(pi => pi.Name == p...
Passing multiple error classes to ruby's rescue clause in a DRY fashion
...operator *.
EXCEPTIONS = [FooException, BarException]
begin
a = rand
if a > 0.5
raise FooException
else
raise BarException
end
rescue *EXCEPTIONS
puts "rescued!"
end
If you are going to use a constant for the array as above (with EXCEPTIONS), note that you cannot define it w...
Android - Back button in the title bar
...
(In the Android developers API, it recommends messing around with the manifest and adding stuff like android:parentActivityName. But that doesn't seem to work for me. The above is simpler and more reliable.)
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="...
How to add text inside the doughnut chart using Chart.js?
...
You have to modify the code like:
in chart.Doughnut.defaults
labelFontFamily : "Arial",
labelFontStyle : "normal",
labelFontSize : 24,
labelFontColor : "#666"
and then in function drawPieSegments
ctx.fillText(data[0].value + "%", width...
File Upload without Form
... IMHO this is the best solution, however another choice is to use an <iframe inside you can do a regular post back
– John Smith
Nov 12 '14 at 16:41
...
'console' is undefined error for Internet Explorer
...
Try
if (!window.console) console = ...
An undefined variable cannot be referred directly. However, all global variables are attributes of the same name of the global context (window in case of browsers), and accessing an undefi...
How to download all files (but not HTML) from a website using wget?
...
To filter for specific file extensions:
wget -A pdf,jpg -m -p -E -k -K -np http://site/path/
Or, if you prefer long option names:
wget --accept pdf,jpg --mirror --page-requisites --adjust-extension --convert-links --backup-converted --no-p...
Running Bash commands in Python
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@AWrightIV If you need your subprocess to be run in a particular working directory, you can use the cwd argument to Popen: subprocess.Popen(..., cwd='path\to\somewhere')
– waterproof
Jul 11 '14 at ...
How to retrieve form values from HTTPPOST, dictionary or?
...st like to point out that you lose the backup of the compiler in option 2. If the model changes, the compiler will not catch the change in the related controllers. There are good cases for option 2 but I wouldn't encourage wide use.
– Serguei Fedorov
Mar 2 '16 ...
Exiting from python Command Line
To exit from Python command line, I have to type exit(). If I type exit, it says
11 Answers
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