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ModelState.IsValid == false, why?

Where can I find the list of errors of which make the ModelState invalid? I didn't see any errors property on the ModelState object. ...
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In pure functional languages, is there an algorithm to get the inverse function?

... "chase" a solution while we explore a design space using "undefined" and "error" during development). A "bottom" x has the type a. It "inhabits" (or is a "value") of every type. This is a logical contradiction, since types are propositions and there is no value which satisfies every proposition....
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Reading a file line by line in Go

... From the same docs.. "If ReadString encounters an error before finding a delimiter, it returns the data read before the error and the error itself (often io.EOF)." So you can just check for io.EOF error and know your are done. – eduncan911 ...
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How do I list one filename per output line in Linux?

... -1 ftw. – crantok May 21 '13 at 21:05 4 ls defaults to -1 behavior when the output isn't connect...
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SQL Query to concatenate column values from multiple rows in Oracle

...ted string exceeds 4000 characters( limit for VARCHAR2 in SQL ), the below error is thrown, which is difficult to manage in Oracle versions upto 12.1 ORA-01489: result of string concatenation is too long A new feature added in 12cR2 is the ON OVERFLOW clause of LISTAGG. The query including t...
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Removing duplicates in lists

...hable. This means, that this does not work for a list of dictionaries. TypeError: unhashable type: 'dictlist' – CraZ May 16 '18 at 17:27 ...
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How do you effectively model inheritance in a database?

... to confusion. "TPT" is supertype-subtype. "TPH" is Unnormalised, a gross error. "TPH" is even less Normalised, another gross error. – PerformanceDBA Nov 10 '10 at 21:33 45 ...
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How to get Locale from its String representation in Java?

..., String country) Here is a sample code :) // May contain simple syntax error, I don't have java right now to test.. // but this is a bigger picture for your algo... public String localeToString(Locale l) { return l.getLanguage() + "," + l.getCountry(); } public Locale stringToLocale(String ...
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Are HLists nothing more than a convoluted way of writing tuples?

... answered Aug 6 '12 at 10:05 Miles SabinMiles Sabin 22.6k66 gold badges5858 silver badges9595 bronze badges ...
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How to convert a string to lower case in Bash?

...sn't work for me (GNU bash version 4.2.46 and 4.0.33 (and same behaviour 2.05b.0 but nocasematch is not implemented)) even with using shopt -u nocasematch;. Unsetting that nocasematch causes [[ "fooBaR" == "FOObar" ]] to match OK BUT inside case weirdly [b-z] are incorrectly matched by [A-Z]. Bash i...