大约有 40,000 项符合查询结果(耗时:0.0472秒) [XML]
List all indexes on ElasticSearch server?
...
you can also select and order columns adding e.g. &h=health,index as well as sort with &s=health:desc
– Georg Engel
Dec 18 '18 at 19:33
...
What is the difference between onBlur and onChange attribute in HTML?
...
An example to make things concrete. If you have a selection thus:
<select onchange="" onblur="">
<option>....
</select>
the onblur() is called when you navigate away. The onchange() is called when you select a different option from the selection - i.e....
Get a list of distinct values in List
...
Notes.Select(x => x.Author).Distinct();
This will return a sequence (IEnumerable<string>) of Author values -- one per unique value.
share
...
C# switch statement limitations - why?
...values of switch labels are distinct (so that only one switch block can be selected for a given switch-expression)
Consider this code example in the hypothetical case that non-constant case values were allowed:
void DoIt()
{
String foo = "bar";
Switch(foo, foo);
}
void Switch(String val1...
Randomize a List
...uffle();
The code above uses the much criticised System.Random method to select swap candidates. It's fast but not as random as it should be. If you need a better quality of randomness in your shuffles use the random number generator in System.Security.Cryptography like so:
using System.Security....
Max return value if empty query
...oeSize = Workers.Where(x => x.CompanyId == 8)
.Select(x => x.ShoeSize)
.DefaultIfEmpty(0)
.Max();
The zero in DefaultIfEmpty is not necessary.
...
Is there a way to navigate to real implementation of method behind an interface?
...
update: as of Visual Studio 2015 update 1, right click on a method and select go to implementation. You can also map it to keyboard shortcut via Tools > Options > Environment > Keyboard and search for Edit.GoToImplementation command. The default shortcut is Ctrl+F12. (F12 will navigate ...
How to reset Django admin password?
...users use the command "print(users)"
The first user is usually the admin.
Select the user you wish to change their password e.g.
"user = users[0]"
Set the password
user.set_password('name_of_the_new_password_for_user_selected')
Save the new password
"user.save()"
Start the server and log in usi...
How to replace a string in a SQL Server Table Column
...
all answers are great but I just want to give you a good example
select replace('this value from table', 'table', 'table but updated')
this SQL statement will replace the existence of the word "table"
(second parameter) inside the given statement(first parameter) with the third paramete...
How do I set the size of Emacs' window?
... got the following in my .emacs:
(if (window-system)
(set-frame-height (selected-frame) 60))
You might also look at the functions set-frame-size, set-frame-position, and set-frame-width. Use C-h f (aka M-x describe-function) to bring up detailed documentation.
I'm not sure if there's a way to ...
