linq-extensions

来源： https://stackoverflow.com/questions/16600685/expression-equal-how-to-compare-nullable-and-non-nullable-fields

问题 This baffles me and I can't seem to make Visual Studio 2010 to recognise System.Linq extension methods in view code. Intellisense doesn't work and Visual Studio red underlines unrecognised extension methods. These are web.config's most relevant parts, that I think are related to Visual Studio to recognize System.Linq extension methods. Commented out lines may be uncommented but there's no difference. <compilation debug="true" batch="true"> <assemblies> <!-- <add assembly="System.Core, Version