大约有 30,000 项符合查询结果（耗时：0.0332秒） [XML]
How to disable back swipe gesture in UINavigationController on iOS 7
... @AhsanEbrahim, when the back gesture starts, viewWillAppear is called on the view behind the current view. This can cause havoc in code logic since the current view is still active. Might be the cause of your crash.
– phatmann
May 31 '15 at 12:06
...
How can I efficiently select a Standard Library container in C++11?
There's a well known image (cheat sheet) called "C++ Container choice". It's a flow chart to choose the best container for the wanted usage.
...
Real life example, when to use OUTER / CROSS APPLY in SQL
... ORDER BY pr.name) pa
ORDER BY pr.name,
pa.name
2) Calling a Table Valued Function for each row in the outer query
SELECT *
FROM sys.dm_exec_query_stats AS qs
CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle)
3) Reusing a column alias
SELECT number,
doubled_numbe...
An item with the same key has already been added
... this error whenever I submit the form also the action method is not being called because of this:
21 Answers
...
How to get Url Hash (#) from server side
...e selecting of the field, etc ... all in all it ends up being a few jQuery calls, one to save the value, and another to restore it.
Before submit:
$("form").submit(function() {
$("input", "#urlhash").val(window.location.hash);
});
On page load:
var hashVal = $("input", "#urlhash").val();
if (...
Generate pdf from HTML in div using Javascript
...o guess the element handler can be a class? That would be much more semantically in line with HTML5 standards. An ID not only carries too much speificity weight in CSS, it also has to be unique.
– Imperative
Jan 3 '15 at 7:28
...
Updating the list view when the adapter data changes
...stView.setAdapter(adapter);
and after updating the value of a list item, call:
adapter.notifyDataSetChanged();
share
|
improve this answer
|
follow
|
...
Should I use .done() and .fail() for new jQuery AJAX code instead of success and error
...precation Notice:
The jqXHR.success(), jqXHR.error(), and jqXHR.complete() callbacks will be deprecated in jQuery 1.8. To prepare your code for their eventual removal, use jqXHR.done(), jqXHR.fail(), and jqXHR.always() instead.
If you are using the callback-manipulation function (using method-chain...
Inserting a Python datetime.datetime object into MySQL
...you are on MySQL. Just format the date and try it as a separate direct SQL call to test.
In Python, you can get an ISO date like
now.isoformat()
For instance, Oracle likes dates like
insert into x values(99, '31-may-09');
Depending on your database, if it is Oracle you might need to TO_DATE i...
How to add leading zeros?
...SX/Linux:
> sprintf("%05s", "104")
[1] "00104"
But because sprintf() calls the OS's C sprintf() command, discussed here, in Windows 7 you get a different result:
> sprintf("%05s", "104")
[1] " 104"
So on Windows machines the work around is:
> sprintf("%05d", as.numeric("104"))
[1] ...