大约有 30,000 项符合查询结果（耗时：0.0561秒） [XML]
Any way to make a WPF textblock selectable?
... protected override void OnMouseDown(MouseButtonEventArgs e)
{
base.OnMouseDown(e);
Point mouseDownPoint = e.GetPosition(this);
StartSelectPosition = this.GetPositionFromPoint(mouseDownPoint, true);
}
protected override void OnMouseUp(MouseButtonEvent...
What is the proper way to re-attach detached objects in Hibernate?
...
Persistent objects work great, the dirty flag is set based on the delta between the initial load and the value(s) at flush() time. Detached objects need, and don't currently have this functionality. The way for hibernate to do it is to add an additional hash/id for detached o...
Extract a substring according to a pattern
..._ as a separator and made two separate variables for the prefix and suffix based on @Grothendieck answer: prefix <- sub("_.*", "", variable) and suffix <- sub(".*_", "", variable)
– swihart
Nov 13 '15 at 19:45
...
What is the best way to compute trending topics or tags?
...e total number of days, sum of views, and sum of views squared in your database. If you have historic data, initialize these fields using that data, otherwise initialize to zero. At the end of each day, calculate the z-score using the day's number of views against the historic data stored in the thr...
Creating the Singleton design pattern in PHP5
...en there are multiple subclasses.
Here is a correct inheritable Singleton base class.
class Singleton
{
private static $instances = array();
protected function __construct() {}
protected function __clone() {}
public function __wakeup()
{
throw new Exception("Cannot unse...
What is __future__ in Python used for and how/when to use it, and how it works
...
So, based on the release version in the variables, if your interpreter is using a later version than indicate, the import __future__ xyz is a no-op?
– Ray
Apr 15 '16 at 15:15
...
How to open a file using the open with statement
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
How do you delete an ActiveRecord object?
...
Why it only updates deleted_at column data in my database? How can I delete the whole row of data?
– TommyQu
Sep 28 '17 at 15:42
...
Is there an XSLT name-of element?
...uld do it before adding to an RDB, and an xml document is just another database.
– Patanjali
Feb 14 '18 at 3:56
...
How to split one string into multiple strings separated by at least one space in bash shell?
...
@mob what should i do if i want to split the string based on some specific string? example ".xlsx" separator .
– user9518134
Aug 14 '18 at 6:23
...