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Why are C# 4 optional parameters defined on interface not enforced on implementing class?
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Optional parameters are kind of like a macro substitution from what I understand. They are not really optional from the method's point of view. An artifact of that is the behavior you see where you get different results if you cast to an interface.
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Custom ImageView with drop shadow
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This is taken from Romain Guy's presentation at Devoxx, pdf found here.
Paint mShadow = new Paint();
// radius=10, y-offset=2, color=black
mShadow.setShadowLayer(10.0f, 0.0f, 2.0f, 0xFF000000);
// in onDraw(Canvas)
canvas.drawBitmap(b...
How do I check for a network connection?
...or changes in IP address or changes in network availability use the events from the NetworkChange class:
System.Net.NetworkInformation.NetworkChange.NetworkAvailabilityChanged
System.Net.NetworkInformation.NetworkChange.NetworkAddressChanged
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Checking in of “commented out” code [closed]
...ould a ban on checking in commented-out code have prevented that developer from making this oversight? The ban just gives you TWO things to punish over instead of one. It doesn't prevent the oversight.
– Eddie
Apr 16 '09 at 23:43
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Most common way of writing a HTML table with vertical headers?
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@Nideo - I've added a reference from the HTML4 documentation in my post that clearly states that THEAD, TFOOT and TBODY must contain the same number of columns.
– Francois Deschenes
Jun 16 '11 at 7:02
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Transform DateTime into simple Date in Ruby on Rails
...rror: undefined method 'to_date' for #<DateTime: -1/2,0,2299161>
from (irb):1
>> require 'active_support/core_ext'
=> true
>> DateTime.new.to_date
=> Mon, 01 Jan -4712
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How to make Sequelize use singular table names
... One downside to freezeTableName is that it also prevents sqlz from lowercasing table and column names. Which means that later, when you're hand-writing SQL to dig through data, you have to cope with mixed-case names (whatever that means for your dialect). On pg, it means having to use d...
What's the difference between text/xml vs application/xml for webservice response
...one that is frequently visited and clear recommendations are now available from RFC 7303 which obsoletes RFC3023. In a nutshell (section 9.2):
The registration information for text/xml is in all respects the same
as that given for application/xml above (Section 9.1), except that
the "Type name" is ...
Error: Jump to case label
...hat bypasses declarations with initialization. A
program that jumps (87) from a point where a variable with automatic storage duration is not in scope to a
point where it is in scope is ill-formed unless the variable has scalar type, class type with a trivial default
constructor and a trivial ...
Pure JavaScript equivalent of jQuery's $.ready() - how to call a function when the page/DOM is ready
...;/script>
</body>
</html>
For modern browsers (anything from IE9 and newer and any version of Chrome, Firefox or Safari), if you want to be able to implement a jQuery like $(document).ready() method that you can call from anywhere (without worrying about where the calling script i...