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One DbContext per web request… why?
...t gets stale pretty soon. This will get you in all sorts of trouble when multiple users/applications work on that database simultaneously (which is very common of course). But I expect you already know that and just want to know why not to just inject a new instance (i.e. with a transient lifestyle)...
Best exception for an invalid generic type argument
...ic type which doesn't support it should throw NSE. I would consider a Foo<T> to be a "general type", and Foo<Bar> to be a "specific type" in that context, even though there's no "inheritance" relation between them.
– supercat
May 6 '13 at 17:52
...
What is the Difference Between read() and recv() , and Between send() and write()?
...blocking indefinitely.
An example from APUE:
#include "apue.h"
#include <netdb.h>
#include <errno.h>
#include <sys/socket.h>
#define BUFLEN 128
#define TIMEOUT 20
void
sigalrm(int signo)
{
}
void
print_uptime(int sockfd, struct addrinfo *aip)
{
int n;
char...
Adding an onclick function to go to url in JavaScript?
...hese days
$("a#thing_to_click").click(function(e){
e.preventDefault();
window.location = "http://www.google.com/";
});
share
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improve this answer
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f...
Can you use reflection to find the name of the currently executing method?
...ple: a property setter (to answer part 2):
protected void SetProperty<T>(T value, [CallerMemberName] string property = null)
{
this.propertyValues[property] = value;
OnPropertyChanged(property);
}
public string SomeProperty
{
set { SetProperty(valu...
std::shared_ptr of this
...nd):
class A;
class B;
class A
: public std::enable_shared_from_this<A>
{
public:
void addChild(std::shared_ptr<B> child)
{
children.push_back(child);
// like this
child->setParent(shared_from_this()); // ok
// ^^^^^^^^^^^^...
What is the simplest way to get indented XML with line breaks from XmlDocument?
...
Based on the other answers, I looked into XmlTextWriter and came up with the following helper method:
static public string Beautify(this XmlDocument doc)
{
StringBuilder sb = new StringBuilder();
XmlWriterSettings settings = new XmlWriterSettings
{
...
How to avoid “ConcurrentModificationException” while removing elements from `ArrayList` while iterat
...
Use an Iterator and call remove():
Iterator<String> iter = myArrayList.iterator();
while (iter.hasNext()) {
String str = iter.next();
if (someCondition)
iter.remove();
}
...
How to determine one year from now in Javascript
... var year = date.getFullYear()+1;
var newdate = year + '-' + (month < 10 ? '0' : '') + month + '-' + (day < 10 ? '0' : '') + day;
$("#next_date").val(newdate);
}
// call function.
<input type="date" name="current_date" id="current_date" value="" onblur="nextYearDate(this.value);" ...
Internal typedefs in C++ - good style or bad style?
...ions and traits classes (cf. Boost.Graph), because these do not exclude built-in types from modelling the concept and because it makes adapting types that were not designed with the given template libraries' concepts in mind easier.
Don't use the STL as a reason to make the same mistakes.
...