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Exception thrown in NSOrderedSet generated accessors
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The bug ID is 10114310. It was reported on 13-Sep-2011 but today (15-Jan-2012) it is still "open". It is incredible, considering the number of people who have the same problem.
– Dev
Jan 15 '12 ...
Error 1022 - Can't write; duplicate key in table
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The most likely you already have a constraint with the name iduser or idcategory in your database. Just rename the constraints if so.
Constraints must be unique for the entire database, not just for the specific table you are creating/altering.
To find out where the constraints are ...
What is ASP.NET Identity's IUserSecurityStampStore interface?
Looking at ASP.NET Identity (new membership implementation in ASP.NET), I came across this interface when implementing my own UserStore :
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Auto line-wrapping in SVG text
...element.
<svg ...>
<switch>
<foreignObject x="20" y="90" width="150" height="200">
<p xmlns="http://www.w3.org/1999/xhtml">Text goes here</p>
</foreignObject>
<text x="20" y="20">Your SVG viewer cannot display html.</text>
</switch>
</svg&...
Ruby on Rails form_for select field with class
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Right on the money, thank you so much, that did the trick! I knew that it had to be something simple and of course it was.
– Patrick
Nov 2 '10 at 21:34
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notifyDataSetChanged example
I'm trying to use in my Android Application the notifyDataSetChanged() method for an ArrayAdapter but it doesn't work for me.
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Easiest way to copy a single file from host to Vagrant guest?
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This didn't work for me. I installed the plugin, but kept getting an error that said "The plugin "vagrant-scp" could not be found. Please make sure that it is properly installed via vagrant plugin."
– rocker...
Xcode 6 Bug: Unknown class in Interface Builder file
... view controllers themselves).
Then with those objects selected, open the identity inspector and under "Custom Class" you should see the Module option. Click inside the Module text box, and press enter.
That's it! The current module for all of my custom objects must have been internally incorrectl...
Reflecting parameter name: abuse of C# lambda expressions or syntax brilliance?
I am looking at the MvcContrib Grid component and I'm fascinated, yet at the same time repulsed, by a syntactic trick used in the Grid syntax :
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Is it possible to specify condition in Count()?
...y old, but I like the NULLIF trick for such scenarios, and I found no downsides so far. Just see my copy&pasteable example, which is not very practical though, but demonstrates how to use it.
NULLIF might give you a small negative impact on performance, but I guess it should still be faster tha...