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WPF Data Binding and Validation Rules Best Practices
...or model can signal a data
validation error within the property
setter by rejecting an incoming bad
value and throwing an exception. If
the ValidatesOnExceptions property on
the data binding is true, the data
binding engine in WPF and Silverlight
will handle the exception and display
...
Is it unnecessary to put super() in constructor?
Isn't this one automatically put by the compiler if I don't put it in a subclass's constructor?
6 Answers
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Create a tag in a GitHub repository
...
You can create tags for GitHub by either using:
the Git command line, or
GitHub's web interface.
Creating tags from the command line
To create a tag on your current branch, run this:
git tag <tagname>
If you want to include a description with...
Why is exception.printStackTrace() considered bad practice?
...rlying standard "error" output stream of the JVM process can be redirected by
invoking System.setErr() which changes the destination pointed to by System.err.
or by redirecting the process' error output stream. The error output stream may be redirected to a file/device
whose contents may be igno...
In C#, how to check if a TCP port is available?
... current system tcp connections. This is the same information provided
// by the netstat command line application, just in .Net strongly-typed object
// form. We will look through the list, and if our port we would like to use
// in our TcpClient is occupied, we will set isAvailable to false.
I...
X-UA-Compatible is set to IE=edge, but it still doesn't stop Compatibility Mode
...What's the reason for the <clear />? What custom headers are cleared by this?
– M4N
Dec 7 '12 at 9:48
The clear ...
float64 with pandas to_csv
...me of writing, and floating point precision is still not something you get by default with to_csv/read_csv (precision-performance tradeoff; defaults favor performance).
Nowadays there is the float_format argument available for pandas.DataFrame.to_csv and the float_precision argument available for p...
What is a callback URL in relation to an API?
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A callback URL will be invoked by the API method you're calling after it's done. So if you call
POST /api.example.com/foo?callbackURL=http://my.server.com/bar
Then when /foo is finished, it sends a request to http://my.server.com/bar. The contents and m...
Differences between unique_ptr and shared_ptr [duplicate]
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@AaronMcDaid By default unique_ptr will behave like a raw pointer that you can't forget to delete: if you forget to make the dtor virtual, it's on you.
– curiousguy
Jun 30 '18 at 18:00
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Comparing two files in linux terminal
...<(sort a.txt) <(sort b.txt)
comm compares (sorted) input files and by default outputs three columns: lines that are unique to a, lines that are unique to b, and lines that are present in both. By specifying -1, -2 and/or -3 you can suppress the corresponding output. Therefore comm -23 a b li...