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Get output parameter value in ADO.NET
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For those that are using a DataReader, you must close it or read to the end of the data before you can view the output parameters.
– Garry English
Apr 22 '15 at 5:52
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Better to 'try' something and catch the exception or test if it's possible first to avoid an excepti
...r example by preventing extra lookups)
cleaner code (fewer lines/easier to read)
Often, these go hand-in-hand.
speed-ups
In the case of trying to find an element in a long list by:
try:
x = my_list[index]
except IndexError:
x = 'NO_ABC'
the try, except is the best option when the in...
versionCode vs versionName in Android Manifest
...sionCode attribute holds the significant version number used internally.
Reading that it's pretty clear that versionName is just something that's shown to the user, versionCode is what matters. Just keep increasing it and everything should be good.
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When should I use semicolons in SQL Server?
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@maurocam I think you've read the document incorrectly. If you look at that link it says "Not ending Transact-SQL statements with a semicolon." is deprecated.
– Caltor
Nov 6 '17 at 15:10
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Dump a mysql database to a plaintext (CSV) backup from the command line
...ysqldump since that outputs in a form that is only convenient for mysql to read. CSV seems more universal (one file per table is fine). But if there are advantages to mysqldump, I'm all ears. Also, I'd like something I can run from the command line (linux). If that's a mysql script, pointers to ...
In Python, how do I use urllib to see if a website is 404 or 200?
... error (e.g. connection refused)
# ...
else:
# 200
body = resp.read()
Note that HTTPError is a subclass of URLError which stores the HTTP status code.
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Uses of Action delegate in C# [closed]
...t; { "andrew", "nicole" };
names.ForEach(print);
Console.Read();
}
static void Print(String s)
{
Console.WriteLine(s);
}
}
Notice that the foreach method iterates the collection of names and executes the print method against each member of the collection....
Generating an Excel file in ASP.NET [closed]
...blem nowadays)
Complicated unless you're using a third party component
SpreadSheetML (open format XML)
Pros:
Simple compared to native Excel formats
Supports most Excel features: formating, styles, formulas, multiple sheets per workbook
Excel does not need to be installed to use it
No third pa...
Check if an image is loaded (no errors) with jQuery
...ck the image DOM element for the .complete to make sure the image wasn't already loaded before jQuery could register the events.
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.htaccess not working apache
...mple.
Third, if you want to ensure that a .htaccess file is in fact being read, put garbage in it.
An invalid line, such as "INVALID LINE HERE", in your .htaccess file, will result in a 500 Server Error when you point your browser at the directory containing that file. If it doesn't, then you don't...