大约有 42,000 项符合查询结果（耗时：0.0682秒） [XML]
Unable to generate an explicit migration in entity framework
...
It tells you that there is some unprocessed migration in your application and it requires running Update-Database before you can add another migration.
share
|
improve this answer
|
...
Generator Expressions vs. List Comprehension
When should you use generator expressions and when should you use list comprehensions in Python?
9 Answers
...
Python Sets vs Lists
...cture is more efficient/speedy? Assuming that order is not important to me and I would be checking for duplicates anyway, is a Python set slower than a Python list?
...
How do I make a composite key with SQL Server Management Studio?
...ht multiple fields, click the blocks in front of the columns "column name" and "data type" and such. Ctrl/Shift+Clicking on the column name fields won't actually do anything.
– Pimgd
Oct 10 '13 at 14:50
...
Gem::LoadError for mysql2 gem, but it's already in Gemfile
...his question by me 8 September 2015 so use the above line in your Gem file and run:
bundle install
You should be good to go
share
|
improve this answer
|
follow
...
git: Your branch is ahead by X commits
...ng a repository on google code. Then I cloned this repository on my laptop and I do work there and push the changes, laptop => code.google. I used to get this message on my server where I had created a clone of code.google code repository and I used to pull the changes. I think fetch is required ...
Load a UIView from nib in Swift
...
Original Solution
I created a XIB and a class named SomeView (used the same name for
convenience and readability). I based both on a UIView.
In the XIB, I changed the "File's Owner" class to SomeView (in the identity inspector).
I created a UIView outlet in S...
#ifdef replacement in the Swift language
...ifferent value when in Debug or when in Release.
I tested it in real code and it works; it doesn't seem to be recognized in a playground though.
You can read my original post here.
IMPORTANT NOTE: -DDEBUG=1 doesn't work. Only -D DEBUG works. Seems compiler is ignoring a flag with a specific val...
Can I add extension methods to an existing static class?
...u can write a wrapper class (or facade) that implements the same signature and defers the actual call to the real ConfigurationManager. You can add whatever method you want to the wrapper class so it doesn't need to be an extension.
– tvanfosson
Feb 18 '10 at ...
Store boolean value in SQLite
...an storage class. Instead, Boolean values are stored as integers 0 (false) and 1 (true).
share
|
improve this answer
|
follow
|
...