大约有 47,000 项符合查询结果(耗时:0.0688秒) [XML]

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How do you do a deep copy of an object in .NET? [duplicate]

... 11 Answers 11 Active ...
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Getting exact error type in from DbValidationException

...ituation where I'm initializing my model in DatabaseInitializer() for EF 4.1 and get this annoying error "Validation failed for one or more entities. See 'EntityValidationErrors' property for more details." So, I go to this EntityValidationErrors and there is a field {System.Data.Entity.Validatio...
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How to suppress warnings globally in an R Script

... You could use options(warn=-1) But note that turning off warning messages globally might not be a good idea. To turn warnings back on, use options(warn=0) (or whatever your default is for warn, see this answer) ...
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count number of lines in terminal output

... 491 Pipe the result to wc using the -l (line count) switch: grep -Rl "curl" ./ | wc -l ...
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What is meant by Scala's path-dependent types?

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Regex that accepts only numbers (0-9) and NO characters [duplicate]

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Duplicate files copied (Android Studio 0.4.0) [duplicate]

... According to comment 14 in this bug: https://code.google.com/p/android/issues/detail?id=61573#c14 this is a bug in v0.7.0 of the Android Gradle plugin, and is due to be fixed soon in 0.7.1. EDIT Here are the notes from that bug about the additi...
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Run two async tasks in parallel and collect results in .NET 4.5

... { Console.WriteLine("Starting"); var task1 = Sleep(5000); var task2 = Sleep(3000); int[] result = await Task.WhenAll(task1, task2); Console.WriteLine("Slept for a total of " + result.Sum() + " ms"); } private a...
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How do I verify/check/test/validate my SSH passphrase?

... 123 You can verify your SSH key passphrase by attempting to load it into your SSH agent. With Open...
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Does Qt support virtual pure slots?

... 164 Yes, just like regular c++ pure virtual methods. The code generated by MOC does call the pure ...