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How can I retrieve Id of inserted entity using Entity framework? [closed]
...xt())
{
context.MyEntities.Add(myNewObject);
context.SaveChanges();
int id = myNewObject.Id; // Yes it's here
}
Entity framework by default follows each INSERT with SELECT SCOPE_IDENTITY() when auto-generated Ids are used.
...
Best way to get identity of inserted row?
...the current IDENTITY value for a table that you have not inserted a record into."
The OUTPUT clause of the INSERT statement will let you access every row that was inserted via that statement. Since it's scoped to the specific statement, it's more straightforward than the other functions above. How...
Does Java have a HashMap with reverse lookup?
...s in this answer: stackoverflow.com/questions/787446/… (and the original interview). That's biased towards Google, for obvious reasons, but even so I think it's safe to say you're better off with Google Collections nowadays.
– Jonik
Nov 5 '09 at 18:21
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Choice between vector::resize() and vector::reserve()
...fragile or not according to how difficult you've made it for yourself to maintain the required property. Something like x.reserve(x.size() + newdata); vector<int>::iterator special_element = get_special_element(x); for (int i = 0; i < newdata; ++i) { if some_function(i, special_element) x.p...
How do I handle newlines in JSON?
I've generated some JSON and I'm trying to pull it into an object in JavaScript. I keep getting errors. Here's what I have:
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关于php的socket初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... {
// 接受客户端连接
$newconn = socket_accept($socket);
$i = (int) $newconn;
$reject = '';
if (count(self::$connections) >= self::$maxconns) {
$reject = "Server full, Try again later./n";
}
// 将当前客户端连接放入 socket_select 选择
self::$connections[$i] = $newc...
Java optional parameters
...ate optional parameters in Java:
Method overloading.
void foo(String a, Integer b) {
//...
}
void foo(String a) {
foo(a, 0); // here, 0 is a default value for b
}
foo("a", 2);
foo("a");
One of the limitations of this approach is that it doesn't work if you have two optional parameters...
Find string between two substrings [duplicate]
...
Just converting the OP's own solution into an answer:
def find_between(s, start, end):
return (s.split(start))[1].split(end)[0]
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How to set top-left alignment for UILabel for iOS application?
...rticalAlignmentMiddle,
VerticalAlignmentBottom,
} VerticalAlignment;
@interface SOLabel : UILabel
@property (nonatomic, readwrite) VerticalAlignment verticalAlignment;
@end
SOLabel.m
@implementation SOLabel
-(id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
...
How do lexical closures work?
... * j
return func
flist.append(funcC(i))
for f in flist:
print f(2)
This is what happens when you mix side effects and functional programming.
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