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Setting unique Constraint with fluent API?

..., you can use HasIndex() to add indexes for migration through fluent API. https://github.com/aspnet/EntityFramework6/issues/274 Example modelBuilder .Entity<User>() .HasIndex(u => u.Email) .IsUnique(); On EF6.1 onwards, you can use IndexAnnotation() to add indexes for m...
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Example images for code and mark-up Q&As [closed]

...c final BufferedImage SHEET; static { try { // see https://stackoverflow.com/a/19209651/2891664 SHEET = ImageIO.read(new URL("https://i.stack.imgur.com/memI0.png")); } catch (IOException x) { throw new UncheckedIOException(x); } } ...
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Using two CSS classes on one element [duplicate]

...;</div> Reference it in css like so: .social.first {} Example: https://jsfiddle.net/tybro0103/covbtpaq/ share | improve this answer | follow | ...
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How to disable Golang unused import error

...tion), use the blank identifier as explicit package name. View more at https://golang.org/ref/spec#Import_declarations share | improve this answer | follow ...
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Reverse a string in Java

...st.append(source.charAt(i)); } return dest.toString(); } http://www.java2s.com/Code/Java/Language-Basics/ReverseStringTest.htm share | improve this answer | follow...
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How to validate GUID is a GUID

...[0-9a-fA-F]){4}-([0-9a-fA-F]){4}-([0-9a-fA-F]){12}\}{0,1})$" from http://www.geekzilla.co.uk/view8AD536EF-BC0D-427F-9F15-3A1BC663848E.htm. That said, it should be emphasized that the GUID really is a 128-bit number and could be represented in a number of different ways. ...
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Changing variable names in Vim

... names); but with the question name like that many people coming here from google searches probably look for a less situation-specific ways to rename variables in VIM -- and those can be more concise I'm surprized no one suggested this way: * :s// NEWNAME /gc The * is the same as gn - it sear...
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Java's final vs. C++'s const

....4. Memory Model - docs.oracle.com/javase/specs/jls/se8/html/index.html -- googles first hit – Ralph Jan 24 '15 at 11:38 add a comment  |  ...
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Twitter Bootstrap Form File Element Upload Button

...amples for how to show the user which/how many files are selected: http://www.abeautifulsite.net/whipping-file-inputs-into-shape-with-bootstrap-3/ share | improve this answer | ...
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How to watch for array changes?

... I found the following which seems to accomplish this: https://github.com/mennovanslooten/Observable-Arrays Observable-Arrays extends underscore and can be used as follow: (from that page) // For example, take any array: var a = ['zero', 'one', 'two', 'trhee']; // Add a generi...