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catch exception that is thrown in different thread
...se the WinForm controls are not thread-safe. Using a callback to pass data from the worker thread back to a WinForm control the main UI thread needs ugly code with Invoke() to make that control thread-safe. Using shared data instead, and the single-threaded System.Windows.Forms.Timer, with a short I...
LinearLayout not expanding inside a ScrollView
...able and last add this ScrollView to LinearLyout.If defined area is exceed from Screen size then u will get a Scroll within ScrollView.
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How can I switch themes in Visual Studio 2012
...an use this to switch between Light and Dark.
The shell theme is distinct from the editor theme--you can use any editor fonts and colors settings with either shell theme.
There is also a Color Theme Editor extension that can be used to create new themes.
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How assignment works with Python list slice?
...ans "make a copy of a slice of" which is where part of the confusion comes from.
– Mark Ransom
May 16 '12 at 17:12
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Rake just one migration
... To expand on what Ryan says, if the table has been dropped from the database outside of Rails, rake db:migrate:up VERSION=my_version may do nothing, because the schema_migrations table still says it is has been run. In the same situation rake db:migrate:redo VERSION=my_version may fa...
How can I access getSupportFragmentManager() in a fragment?
... fragManager = myContext.getSupportFragmentManager(); //If using fragments from support v4
or
FragmentManager fragManager = myContext.getFragmentManager();
You are done.
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How can I deploy/push only a subdirectory of my git repo to Heroku?
...ill (as of 1.8.0.2) not included via the git installer. Luckily installing from source is quick and straightforward, this page worked for me on mac.
– dribnet
Dec 29 '12 at 22:19
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HTML text-overflow ellipsis detection
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For those using (or planning to use) the accepted answer from Christian Varga, please be aware of the performance issues.
Cloning/manipulating the DOM in such a way causes DOM Reflow (see an explanation on DOM reflow here) which is extremely resource intensive.
Using Christian Va...
How do you test to see if a double is equal to NaN?
... (double getting converted to Double by the compiler/runtime); new feature from 1.5 onwards. Little risk going this direction; going from Double to double creates risk of NullPointerExceptions.
– M1EK
Sep 21 '09 at 21:01
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Press alt + numeric in bash and you get (arg [numeric]) what is that?
...for is:
"readline arguments"
This will lead to, for example, this chapter from the bash reference manual:
You can pass numeric arguments to Readline commands. Sometimes the argument acts as a repeat count, other times it is the sign of the argument that is significant. If you pass a negative argum...