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How to create a listbox in HTML without allowing multiple selection?
...m looking to create a simple listbox, but one of the requirements is to DISALLOW multiple selection. Most of the code for listboxes goes like this -
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Declaring a custom android UI element using XML
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The Android Developer Guide has a section called Building Custom Components. Unfortunately, the discussion of XML attributes only covers declaring the control inside the layout file and not actually handling the values inside the class initialisation. The steps are as...
“open/close” SqlConnection or keep open?
...th static methods. Each of these methods opens/closes SQL connection when called:
6 Answers
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Split comma-separated strings in a column into separate rows
...solution,
and two additional variants of Jaap's data.table methods.
Overall 8 different methods were benchmarked on 6 different sizes of data frames using the microbenchmark package (see code below).
The sample data given by the OP consists only of 20 rows. To create larger data frames, these 20...
How do I run a Java program from the command line on Windows?
...ent directory is the default classpath, so you don't have to set -cp . manually.
– Artur Czajka
Nov 6 '16 at 0:51
2
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PHP prepend associative array with literal keys?
...epend an associative array with literal key=>value pairs? I know that array_unshift() works with numerical keys, but I'm hoping for something that will work with literal keys.
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Incrementing in C++ - When to use x++ or ++x?
... i.e., x++ or ++x should only exist on its own line, never as y=x++. Personally, I don't like this, but it's uncommon
– Mikeage
Nov 28 '09 at 16:54
2
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How to make an unaware datetime timezone aware in python
...ize(unaware)
assert aware == now_aware
For the UTC timezone, it is not really necessary to use localize since there is no daylight savings time calculation to handle:
now_aware = unaware.replace(tzinfo=pytz.UTC)
works. (.replace returns a new datetime; it does not modify unaware.)
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What is the difference between DSA and RSA?
...being a bit more complex than,
but related to El Gamal.
Note that nearly all the calculations are mod q, and
hence are much faster.
But, In contrast to RSA, DSA can be used only for digital signatures
DSA Security
The presence of a subliminal channel exists in many schemes (any that need a ran...
How do I return rows with a specific value first?
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That actually works in any SQL database (and is a much cleaner solution than the accepted answer in my opinion)
– a_horse_with_no_name
Sep 24 '13 at 20:49
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