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'Specified condition “$(PackageAsSingleFile)” evaluates to “” instead of a boolean?
...ollowing error message when preview in the "Public Web". I need to restart VS to get rid of the error message.
5 Answers
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Entity Framework 4 Single() vs First() vs FirstOrDefault()
I'm having a devil of a time finding a comparison of the different ways to query for a single item, and when to use each.
6...
Link to all Visual Studio $ variables
...ou may have to change the selection of the version. For instance, I have MSVS2008, and $(Configuration)(in 2013) is $(ConfigurationName) instead.
– sancho.s ReinstateMonicaCellio
Apr 7 '14 at 19:44
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Visual Studio 2012 Web Publish doesn't copy files
I have a Web Application project in VS 2012 and when I use the web publishing tool it builds successfully but doesn't copy any files to the publish target (File System in this case).
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When should I use Struct vs. OpenStruct?
... with ruby 2.14 the difference is smaller 0.94-0.97 with OpenStruct vs 0.02-0.03 with Ostruct (MB Pro 2.2Ghz i7)
– basex
Mar 23 '15 at 17:06
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Scala vs. Groovy vs. Clojure [closed]
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I never had time to play with clojure. But for scala vs groovy, this is words from James Strachan - Groovy creator
"Though my tip though for the long term replacement of javac is Scala.
I'm very impressed with it! I can honestly say if someone had shown me
the Programm...
Window vs Page vs UserControl for WPF navigation?
... same:
UserControl:
http://msdn.microsoft.com/en-IN/library/a6h7e207(v=vs.71).aspx
The difference between page and window with respect to WPF:
Page vs Window in WPF?
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SQL Server IN vs. EXISTS Performance
...lt set).
I believe the optimizer is smart enough to convert between "in" vs "exists" when there is a significant cost difference due to (1) and (2), otherwise it may just be used as a hint (e.g. exists to encourage use of an a seekable index on the right side).
Both forms can be converted to jo...
Visual Studio : short cut Key : Duplicate Line
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In Visual Studio 2017 (pre v15.6)
(edit) This feature is now built-in in VS2017: Ctrl + E, V duplicates a line if nothing is selected, or duplicates selection. You can assign it to a different key combination, or find it in the menu:
See this reference for more information.
Pre VS2017, built-i...
Properties vs Methods
... What is the difference in the internal implementation of a property vs a method. Is anything pushed into the call stack whenever a property is used? If not, how else is it handled?
– Praveen
Jul 17 '14 at 18:32
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