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Validation failed for one or more entities while saving changes to SQL Server Database using Entity
...text.
It handles DbEntityValidationException, DbUpdateException, datetime2 range errors (MS SQL), and include key of invalid entity in message (useful when savind many entities at one SaveChanges call).
First, override SaveChanges in DbContext class:
public class AppDbContext : DbContext
{
pub...
How to implement WiX installer upgrade?
...ts. Any products which have this UpgradeCode, whose versions fall into the range specified, and where the UpgradeVersion/@OnlyDetect attribute is no (or is omitted), will be removed.
The documentation for RemoveExistingProducts mentions setting the UPGRADINGPRODUCTCODE property. It means that the u...
Difference between framework vs Library vs IDE vs API vs SDK vs Toolkits? [closed]
...ed (e.g. Windows, graphics, printing, communications, etc) to write a vast range of applications - so one "library" provides support for pretty much everything you need to do. Often a framework supplies a complete base on which you build your own code, rather than you building an application that co...
Rounding float in Ruby
... 0
raise ArgumentError, "#{p} is an invalid precision level. Valid ranges are integers > 0." unless p.class == Fixnum or p < 0
# Special case for 0 precision so it returns a Fixnum and thus doesn't have a trailing .0
return self.round if p == 0
# Standard case ...
Maximum filename length in NTFS (Windows XP and Windows Vista)?
...ld in the NTFS $Filename attribute is a byte with no offset; this yields a range of 0-255.
The file name iself can be in different "namespaces". So far there are: POSIX, WIN32, DOS and (WIN32DOS - when a filename can be natively a DOS name). (Since the string has a length, it could contain \0 but t...
What does in XML mean?
I often find this strange CDATA tag in XML files:
13 Answers
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What is the Linux equivalent to DOS pause?
...e, and non-US keyboards have keys that send characters outside the \1-\177 range. dd is the idiomatic way here.
– Stephane Chazelas
Jun 4 '14 at 20:51
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Is there a regular expression to detect a valid regular expression?
...any invalid POSIX EREs. Notably, they are a bit pickier in character class ranges, e.g. this is valid in PCRE but not in ERE: [a-b-c].
– Pedro Gimeno
Dec 25 '19 at 19:39
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Differences between Proxy and Decorator Pattern
...per itself based on interface rather then actual class (so it work on wide range of interface instances, Proxy is around concrete class).
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Vim search and replace selected text
...tions/676600/vim-replace-selected-text/677918#677918
function! GetVisual() range
" Save the current register and clipboard
let reg_save = getreg('"')
let regtype_save = getregtype('"')
let cb_save = &clipboard
set clipboard&
" Put the current visual selection in the " register
...