大约有 44,000 项符合查询结果（耗时：0.0588秒） [XML]
Get selected option from select element
I am trying to get the selected option from a dropdown and populate another item with that text, as follows. IE is barking up a storm and it doesn't work in Firefox:
...
How to perform OR condition in django queryset?
...
from django.db.models import Q
User.objects.filter(Q(income__gte=5000) | Q(income__isnull=True))
via Documentation
share
|
improve this answer
|
follo...
Group by month and year in MySQL
... table with a timestamp on each row, how would you format the query to fit into this specific json object format.
12 Answer...
Postgres and Indexes on Foreign Keys and Primary Keys
Does Postgres automatically put indexes on Foreign Keys and Primary Keys? How can I tell? Is there a command that will return all indexes on a table?
...
How do I rename a column in a database table using SQL?
If I wish to simply rename a column (not change its type or constraints, just its name) in an SQL database using SQL, how do I do that? Or is it not possible?
...
Configuring Vim for C++
I would like to make vim my C++ editor. I have very little experience working with it
and need help in configuring vim to work with C++.
I need such features as
...
how to reset
I am developing a metro app with VS2012 and Javascript
27 Answers
27
...
How to use ternary operator in razor (specifically on HTML attributes)?
With the WebForms view engine, I'll commonly use the ternary operator for very simple conditionals, especially within HTML attributes. For example:
...
What do the crossed style properties in Google Chrome devtools mean?
While inspecting an element using Chrome's devtools, in the elements tab, the right-hand side 'Styles' bar shows the corresponding CSS properties. At times, some of these properties are struck-through. What do these properties mean?
...
What is the opposite of evt.preventDefault();
... I've fired an evt.preventDefault() , how can I resume default actions again?
18 Answers
...