I launch VS 2010, and simply open any ordinary (or blank) .sql file and it shows up incorrectly drawn inside the IDE. It draws the document tab, but nothing else. If I type on the keyboard, VS locks up. This only appears to be a problem with files that have the extension “.sql” and has no bearing on the actual content. I also noticed that in the Solution Explorer, those .sql files show the icon that is the same one associated with .js files.
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Problem solved. I was able to resolve the problem by running the
DACProjectSystemSetup_enu.msiinstaller found on the VS2010-SP1 ISO under the root directory. You might also need to re-installDACFramework_enu.msiandTSqlLanguageService_enu.msi.I believe the problem was created as a result of installing SQL Server 2008 R2 after installing VS2010.