大约有 11,700 项符合查询结果（耗时：0.0285秒） [XML]
AtomicInteger lazySet vs. set
... "lazySet" method to the Atomic classes
(AtomicInteger, AtomicReference, etc). This is a niche
method that is sometimes useful when fine-tuning code using
non-blocking data structures. The semantics are
that the write is guaranteed not to be re-ordered with any
previous write, but may be r...
List Git aliases
...r current user) with --system (for all users). This typically goes in the /etc/gitconfig file.
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UITableView with fixed section headers
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@bachonk i am using a stretchable header view. and my style is UITableViewStyleGrouped. i want to fix the header when scrolling up. if i make it UITableViewStylePlain then the header is getting fixed in the middle of the screen, i want to scroll the ...
Access to Modified Closure (2)
...nt -= foo;
Likewise, if you want a once-only event-handler (such as Load etc):
EventHandler bar = null; // necessary for "definite assignment"
bar = delegate {
// ... code
obj.SomeEvent -= bar;
};
obj.SomeEvent += bar;
This is now self-unsubscribing ;-p
...
What's the difference between an id and a class?
...he opening tag of the block has an ID of, say, "main", "header", "footer", etc.
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Best way to check if a Data Table has a null value in it
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You can null/blank/space Etc value using LinQ
Use Following Query
var BlankValueRows = (from dr1 in Dt.AsEnumerable()
where dr1["Columnname"].ToString() == ""
|| dr1["Columnna...
Android buildscript repositories: jcenter VS mavencentral
...vel of geeky. And with some more reason for example a security concern and etc, Android Studio team decided to switch the default repository to jcenter instead as you can see that once you create a new project from latest version of Android Studio, jcenter() would be automatically defined instead of...
Using PHP with Socket.io
...y suck. Each were very slow, when something is broken, support is horrible etc. On the other hand, in Finland it's not rare to get decent quality web hosting (but with php/mysql/static files only) with adsl subscription, without paying any extra. So no, being able to buy crappy VPS for $5 is definit...
Unusual shape of a textarea?
...le. And I think you can also handle the rest of the CSS (font-size, color, etc.) :)
Full code sample
.block_left {
background-color: red;
height: 70px;
width: 100px;
float: left;
border-right: 2px solid blue;
border-bottom: 2px solid blue;
}
.block_right {
background-c...
Fetch the row which has the Max value for a column
...d AND t1."Date" < t2."Date")
WHERE t2.UserId IS NULL;
In other words: fetch the row from t1 where no other row exists with the same UserId and a greater Date.
(I put the identifier "Date" in delimiters because it's an SQL reserved word.)
In case if t1."Date" = t2."Date", doubling appears. Usuall...