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EF Code First: How do I see 'EntityValidationErrors' property from the nuget package console?
... putting a wrapper function in the Configuration class in the Seed method, and replaced calls to SaveChanges with calls to my function instead. This function would simply enumerate the errors within the EntityValidationErrors collection, and rethrow an exception where the Exception message lists th...
What are the git concepts of HEAD, master, origin?
...m learning about git, I keep coming across the terms HEAD, master, origin, and I'm not sure what the differences are. If I understand correctly, HEAD is always equal to the latest revision? And if so, is that the latest revision of the whole repository, or of a specific branch or tag? This is so con...
Curly braces in string in PHP
...write the
expression the same way as it would appear outside the string, and
then wrap it in { and }. Since { can not be escaped, this syntax
will only be recognised when the $ immediately follows the {. Use
{\$ to get a literal {$. Some examples to make it clear:
<?php
// Show all error...
Hiding textarea resize handle in Safari
I'm using textarea components in my application, and I control their height dynamically. As the user types, the height is increased whenever there is enough text. This works fine on IE, Firefox, and Safari.
...
RegEx: Smallest possible match or nongreedy match
...
I don't know, if I'm the only one with this misunderstanding, but it's important to note: While it's true that the non-greedy operator will match as few characters as possible, it still might not be the match one is looking for. "As few characters as possible" does not equal "sh...
How to get Url Hash (#) from server side
... Javascript:
When the form submits, grab the hash (window.location.hash) and store it in a server-side hidden input field Put this in a DIV with an id of "urlhash" so we can find it easily later.
On the server you can use this value if you need to do something with it. You can even change it if yo...
RESTful API methods; HEAD & OPTIONS
I'm writing a RESTful API module for an application in PHP, and I'm a bit mixed on the verbs HEAD and OPTIONS .
3 Answer...
How is Generic Covariance & Contra-variance Implemented in C# 4.0?
...t I heard some news that C# 4.0 is announced to support Generic covariance and contra-variance. That is, List<string> can be assigned to List<object> . How could that be?
...
MySQL: Set user variable from result of query
...rator. However inside other statements, the assignment operator must be := and not = because = is treated as a comparison operator in non-SET statements.
UPDATE:
Further to comments below, you may also do the following:
SET @user := 123456;
SELECT `group` FROM user LIMIT 1 INTO @group;
SELECT ...
Inline code in org-mode
...enclose the text within = or ~ signs to have it typeset in monospaced font and export it verbatim (which means it is not processed for org-specific syntax):
This is =verbatim text= or ~code~.
You'll find all information about org-mode markup elements in the relevant section of the manual.
...