大约有 30,000 项符合查询结果（耗时：0.0390秒） [XML]
Detecting which UIButton was pressed in a UITableView
...ion:@selector(checkButtonTapped:) forControlEvents:UIControlEventTouchUpInside];
Then in touch handler touch coordinate retrieved and index path is calculated from that coordinate:
- (void)checkButtonTapped:(id)sender
{
CGPoint buttonPosition = [sender convertPoint:CGPointZero toView:self.ta...
Spring boot @ResponseBody doesn't serialize entity id
...rating an app to Spring Boot, I have observed that entity properties with @Id are no longer marshalled to JSON
To customize how it behaves, you can extend RepositoryRestConfigurerAdapter to expose IDs for specific classes.
import org.springframework.context.annotation.Configuration;
import org.spr...
Get data from file input in JQuery
... return;
}
var input = document.getElementById('fileinput');
if (!input) {
alert("Um, couldn't find the fileinput element.");
}
else if (!input.files) {
alert("This browser doesn't seem to support the `files` property of file...
looping through an NSMutableDictionary
...
A standard way would look like this
for(id key in myDict) {
id value = [myDict objectForKey:key];
[value doStuff];
}
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...
Execute AsyncTask several times
...
I've added some example code to describe what I mean. ASyncTask will only finish once you're happy with the result and call "terminateTask()".
– seanhodges
Jun 17 '11 at 8:47
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Is SQL or even TSQL Turing Complete?
...e true programming languages, so that's kinda cheating).
In this set of slides Andrew Gierth proves that with CTE and Windowing SQL is Turing Complete, by constructing a cyclic tag system, which has been proved to be Turing Complete. The CTE feature is the important part however -- it allows you to...
Is there an auto increment in sqlite?
...
You get one for free, called ROWID. This is in every SQLite table whether you ask for it or not.
If you include a column of type INTEGER PRIMARY KEY, that column points at (is an alias for) the automatic ROWID column.
ROWID (by whatever name you call it)...
Change the name of the :id parameter in Routing resources for Rails
...he post is https://thoughtbot.com/blog/rails-patch-change-the-name-of-the-id-parameter-in
5 Answers
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Is if(items != null) superfluous before foreach(T item in items)?
...ding null IEnumerables (Pffft! Puh-LEAZE! SMH.) to begin with (cuz, null means N/A, whereas empty list means, it's appl. but is currently, well, empty!, i.e. an Empl. could have Commissions that's N/A for non-Sales or empty for Sales when they haven't earned any).
– Tom
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UPDATE multiple tables in MySQL using LEFT JOIN
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UPDATE t1
LEFT JOIN
t2
ON t2.id = t1.id
SET t1.col1 = newvalue
WHERE t2.id IS NULL
Note that for a SELECT it would be more efficient to use NOT IN / NOT EXISTS syntax:
SELECT t1.*
FROM t1
WHERE t1.id NOT IN
(
SELECT id
...