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Validation failed for one or more entities while saving changes to SQL Server Database using Entity

I want to save my Edit to Database and I am using Entity FrameWork Code-First in ASP.NET MVC 3 / C# but I am getting errors. In my Event class, I have DateTime and TimeSpan datatypes but in my database, I've got Date and time respectively. Could this be the reason? How can I cast to the appropriate ...
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Extract first item of each sublist

... List comprehension method is also the fastest, even faster than Numpy method. jboi's answer talks about performance comparison, – Qiao Zhang Jul 16 '18 at 3:22 ...
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HTML character decoding in Objective-C / Cocoa Touch

...I found this: Objective C HTML escape/unescape , but it doesn't work for me. 13 Answers ...
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How do I show the changes which have been staged?

...are of git status , but I'd like to see the actual diffs - not just the names of files which are staged. 14 Answers ...
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insert multiple rows via a php array into mysql

...and I'm wondering if its possible to insert approximately 1000 rows at a time via a query other than appending each value on the end of a mile long string and then executing it. I am using the CodeIgniter framework so its functions are also available to me. ...
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Set up adb on Mac OS X

I spent quite sometime figuring how to set up adb on Mac, so I figure writing how to set it up might be useful to some people. adb is the command line tool to install and run android apps on your phone/emulator ...
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What is the best way to tell if a character is a letter or number in Java without using regexes?

...nicode letter / digit. The OP asked for "an A-z letter" ... whatever that means. – Stephen C Oct 29 '10 at 0:58 4 ...
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Calculate a percent with SCSS/SASS

I want to set a width in percentage in scss via calculation, but it gives me errors.. 3 Answers ...
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static function in C

... prototype */ int f1(int foo) { return f2(foo); /* ok, f2 is in the same translation unit */ /* (basically same .c file) as f1 */ } int f2(int foo) { return 42 + foo; } main.c: int f1(int); /* prototype */ int f2(int); /* prototype */ int main(void) { f1...
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When would you use the different git merge strategies?

From the man page on git-merge, there are a number of merge strategies you can use. 4 Answers ...