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EF Code First foreign key without navigation property
... to this (for SQL Server):
ALTER TABLE [ChildTableName] ADD CONSTRAINT [FK_SomeName]
FOREIGN KEY ([ParentId]) REFERENCES [ParentTableName] ([Id])
CREATE INDEX [IX_SomeName] ON [ChildTableName] ([ParentId])
Alternatively, without migrations, you could just run a pure SQL command using
context.Da...
Shortcut to switch between design and text in Android Studio
... On windows it is ATL+SHIFT+RIGHT/LEFT
– vijay_t
Dec 18 '15 at 12:11
This answer shows the key command to searc...
How to call base.base.method()?
... would use something like this:
class Derived : Base
{
protected bool _useBaseSay = false;
public override void Say()
{
if(this._useBaseSay)
base.Say();
else
Console.WriteLine("Called from Derived");
}
}
Of course, in a real implementation,...
Why do x86-64 systems have only a 48 bit virtual address space?
...o it. Only making a new ISA (386) was it possible to break the barrier. x86_64 on the other hand supports all 64 bits in the ISA. It's just the current-generation hardware that can't make use of them all...
– R.. GitHub STOP HELPING ICE
Jul 16 '11 at 12:29
...
How do I create a Java string from the contents of a file?
...ne terminators:
String content = Files.readString(path, StandardCharsets.US_ASCII);
For versions between Java 7 and 11, here's a compact, robust idiom, wrapped up in a utility method:
static String readFile(String path, Charset encoding)
throws IOException
{
byte[] encoded = Files.readAllBytes(...
How to deselect a selected UITableView cell?
...ndexPath:indexPath animated:YES];
}
Swift 3.0:
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
//Change the selected background view of the cell.
tableView.deselectRow(at: indexPath, animated: true)
}
...
Are global variables in PHP considered bad practice? If so, why?
...quests.
Often (always?) you can call member functions in methods like preg_replace_callback() like this:
preg_replace_callback('!pattern!', array($obj, 'method'), $str);
See callbacks for more.
The point is that objects have been bolted onto PHP and in some ways lead to some awkwardness.
Don't...
reference assignment is atomic so why is Interlocked.Exchange(ref Object, Object) needed?
In my multithreaded asmx web service I had a class field _allData of my own type SystemData which consists of few List<T> and Dictionary<T> marked as volatile . The system data ( _allData ) is refreshed once in a while and I do it by creating another object called newData and fill...
How to download Xcode DMG or XIP file?
...
download.developer.apple.com/Developer_Tools/Xcode_9/…
– Ruchish Shah
Sep 19 '17 at 19:33
6
...
WSAAsyncSelect模型 - C/C++ - 清泛网 - 专注C/C++及内核技术
...个窗口句柄, 套接字的通知消息将被发到此窗口中
u_int wMsg, //网络事件到来的ID，可以在WM_USER以上数值中任意指定一个值
long IEvent //指定哪些通知码需要发送
//FD_READ可以读套接字
...