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Entity Framework code first unique column
...work Code First:
Column 'x' in table 'dbo.y' is of a type that is invalid for use as a key column in an index.
The reason is because of this:
SQL Server retains the 900-byte limit for the maximum total size of all index key columns."
(from: http://msdn.microsoft.com/en-us/library/ms19124...
C/C++中的段错误（Segmentation fault） - C/C++ - 清泛网 - 专注C/C++及内核技术
... policy.
On Unix-like operating systems, a process that accesses invalid memory receives the SIGSEGV signal. On Microsoft Windows, a process that accesses invalid memory receives the STATUS_ACCESS_VIOLATION exception.
另外，这里有个基本上对照的中文解释，来自ht...
Pull to refresh UITableView without UITableViewController
...rol directly to a UITableView without using a UITableViewController:
override func viewDidLoad() {
super.viewDidLoad()
let refreshControl = UIRefreshControl()
refreshControl.addTarget(self, action: #selector(refresh(_:)), for: .valueChanged)
if #available(iOS 10.0, *) {
tab...
How to download .zip from GitHub for a particular commit sha?
...IP file, when unzipped I get a big ugly SHA1 directory name. Any way to avoid this?
– QED
Apr 24 at 21:42
...
Difference between ApiController and Controller in ASP.NET MVC
... different routing scheme by default (as in: mapping URLs to actions), providing a REST-ful API by convention.
You could probably do anything using a Controller instead of an ApiController with the some(?) manual coding. In the end, both controllers build upon the ASP.NET foundation. But having a...
iPhone app signing: A valid signing identity matching this profile could not be found in your keycha
...blem yesterday. Now, after signing to the developer portal, for every invalid provisioning profile have a button "Renew". After renewing and downloading updated provisioning profile all seems to work as expected, so problem is definitely solved :)
Update: you may have to contact Apple to get a "Ren...
vertical alignment of text element in SVG
...the following values
auto | baseline | before-edge | text-before-edge |
middle | central | after-edge | text-after-edge |
ideographic | alphabetic | hanging | mathematical |
inherit
Description from w3c
This property specifies how an object is aligned with respect to its
parent. This pro...
Overflow to left instead of right
I have a div with overflow:hidden , inside which I show a phone number as the user types it. The text inside the div is aligned to right and incoming characters are added to right as the text grows to left.
...
disable the swipe gesture that opens the navigation drawer in android
I've been following the navigation drawer guide by Google and I'd like to add it to an Activity with tabs and gestures.
6...
AngularJS changes URLs to “unsafe:” in extension page
...st of apps, and each one is a link to see an app in more detail ( apps/app.id ):
6 Answers
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