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How do I bind a WPF DataGrid to a variable number of columns?
...ered Dec 5 '08 at 10:35
Generic ErrorGeneric Error
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Why are function pointers and data pointers incompatible in C/C++?
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– Michael Graczyk
Sep 10 '12 at 23:05
15
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How to log something in Rails in an independent log file?
...initializer:
MultiLogger.add_logger('post')
and call
Rails.logger.post.error('hi')
# or call logger.post.error('hi') if it is accessible.
and you are done.
If you want to code it yourself, see below:
A more complete solution would be to place the following in your lib/ or config/initialize...
SQLite error 'attempt to write a readonly database' during insert?
...QLite file itself is not the same as the user running the script. Similar errors can occur if the entire directory path (meaning each directory along the way) can't be written to.
Who owns the SQLite file? You?
Who is the script running as? Apache or Nobody?
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What's the difference between Perl's backticks, system, and exec?
...onored. The collected standard output of the command is returned; standard error is unaffected.
Alternatives:
In more complex scenarios, where you want to fetch STDOUT, STDERR or the return code, you can use well known standard modules like IPC::Open2 and IPC::Open3.
Example:
use IPC::Open2;
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What does this Google Play APK publish error message mean?
...blish a new version of my Android app to Google Play and get the following error?
17 Answers
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Read and write a String from text file
...write(to: fileURL, atomically: false, encoding: .utf8)
}
catch {/* error handling here */}
//reading
do {
let text2 = try String(contentsOf: fileURL, encoding: .utf8)
}
catch {/* error handling here */}
}
Swift 2.2
let file = "file.txt" //this is the file. we will...
Switch statement multiple cases in JavaScript
...|
edited Apr 28 '15 at 16:05
Barney
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answered Nov 3...
Why do we need the “finally” clause in Python?
...t makes a difference if you return early:
try:
run_code1()
except TypeError:
run_code2()
return None # The finally block is run before the method returns
finally:
other_code()
Compare to this:
try:
run_code1()
except TypeError:
run_code2()
return None
other_code...
Make a URL-encoded POST request using `http.NewRequest(…)`
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answered Oct 8 '13 at 17:05
Fernando Á.Fernando Á.
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