大约有 47,900 项符合查询结果（耗时：0.0855秒） [XML]
new DateTime() vs default(DateTime)
...s must be compile-time constants, which MinValue is not. default(DateTime) and new DateTime() are both valid though.(which is actually funny, because const DateTime x = default(DateTime) is not valid, since DateTime values cannot be declared as compile-time constants)
– Jerri K...
How do I get the day of week given a date?
...ocumentation:
Return the day of the week as an integer, where Monday is 0 and Sunday is 6.
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findViewById in Fragment
...mentation states that onActivityCreated() is the recommended place to find and store references to your views. You must clean up these stored references by setting them back to null in onDestroyView() or you will leak the Activity.
– Monstieur
Jun 5 '14 at 15:1...
PHP substring extraction. Get the string before the first '/' or the whole string
...me/cat1/subcat2/';
$first = strtok($mystring, '/');
echo $first; // home
and
$mystring = 'home';
$first = strtok($mystring, '/');
echo $first; // home
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Short form for Java if statement
...= city.getName() == null ? "N/A" : city.getName();
– Andres F.
Jan 17 '12 at 17:02
21
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How to sort a HashMap in Java [duplicate]
... into a HashMap<TreeSet<Person>>, though the semantics of sets and lists are a bit different.
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What is the @Html.DisplayFor syntax for?
I understand that in Razor, @Html does a bunch of neat things, like generate HTML for links, inputs, etc.
4 Answers
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Get the IP address of the remote host
...discoverable - you need to use the property bag from the incoming request, and the property you need to access depends on whether you're using the Web API under IIS (webhosted) or self-hosted. The code below shows how this can be done.
private string GetClientIp(HttpRequestMessage request)
{
if...
Change URL parameters
...ook like http://www.domain.com/index.php?action=my_action&view-all=Yes and I need to change the "view-all" value. My SO question that was closed: stackoverflow.com/questions/13025880/…
– Draven
Oct 25 '12 at 6:43
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How can I use Async with ForEach?
... case, I recommend projecting each element into an asynchronous operation, and you can then (asynchronously) wait for them all to complete.
using (DataContext db = new DataLayer.DataContext())
{
var tasks = db.Groups.ToList().Select(i => GetAdminsFromGroupAsync(i.Gid));
var results = awa...