大约有 40,000 项符合查询结果（耗时：0.0571秒） [XML]
Automating the InvokeRequired code pattern
... MethodInvoker action)
{
if (obj.InvokeRequired) {
var args = new object[0];
obj.Invoke(action, args);
} else {
action();
}
}
DonBoitnott pointed out that unlike Control the ISynchronizeInvoke interface requires an object array for the Invoke method as paramete...
Create singleton using GCD's dispatch_once in Objective-C
...e many language extensions to Objective-C, with more being added with each new release.
Know it, love it.
And take it as an example of how paying attention to the low-level details can give you insights into powerful new ways to transform Objective-C.
Refer here: instancetype
+ (instancetype)shared...
How do I assert an Iterable contains elements with a certain property?
...s> results = service.getMyItems();
// then
assertTrue(results.contains(new MyItem("foo")));
assertTrue(results.contains(new MyItem("bar")));
Assumes you have implemented a constructor that accepts the values you want to assert on. I realise this isn't on a single line, but it's useful to know ...
How do I concatenate or merge arrays in Swift?
...
You can concatenate the arrays with +, building a new array
let c = a + b
print(c) // [1.0, 2.0, 3.0, 4.0, 5.0, 6.0]
or append one array to the other with += (or append):
a += b
// Or:
a.append(contentsOf: b) // Swift 3
a.appendContentsOf(b) // Swift 2
a.extend(b) ...
Why would someone use WHERE 1=1 AND in a SQL clause?
...
Just adding a example code to Greg's answer:
dim sqlstmt as new StringBuilder
sqlstmt.add("SELECT * FROM Products")
sqlstmt.add(" WHERE 1=1")
''// From now on you don't have to worry if you must
''// append AND or WHERE because you know the WHERE is there
If ProductCategoryID <&...
Where is PATH_MAX defined in Linux?
...ble.
– Edward Falk
Jun 15 '16 at 16:51
4
Beware: PATH_MAX is different from NAME_MAX (and the x-r...
MySQL root access from all hosts
...:
bind-address=0.0.0.0
Finally restart your MySql server to pick up the new setting:
sudo service mysql restart
Try again and check if the new setting has been picked up.
share
|
improve this ...
Obstructed folders in Subversion
...ts original name in SVN (e.g. svn mkdir)
updated the parent folder, so the newly created dir appears in my working copy
copied the files from the obstructed to the newly created dir and commited them
share
|
...
How to change port number for apache in WAMP
I am new to WAMP server and installed it on my system but after installing it when I check it by going to localhost url like this http://localhost/ in the browser it is not working. I am getting a 404 error and blank page .
...
How do I bind to list of checkbox values with AngularJS?
...e
$scope.toggleSelection = function toggleSelection(fruitName) {
var idx = $scope.selection.indexOf(fruitName);
// Is currently selected
if (idx > -1) {
$scope.selection.splice(idx, 1);
}
// Is newly selected
else {
$scope.selection.push(fruitName);
}
...