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How can I use Async with ForEach?
...ext db = new DataLayer.DataContext())
{
var tasks = db.Groups.ToList().Select(i => GetAdminsFromGroupAsync(i.Gid));
var results = await Task.WhenAll(tasks);
}
The benefits of this approach over giving an async delegate to ForEach are:
Error handling is more proper. Exceptions from asy...
Undo part of unstaged changes in git
...ier if you use a good editor mode or plugin, which may provide support for selecting lines directly to revert, as -p can be a bit clumsy to use sometimes. I use Magit, an Emacs mode that is very helpful for working with Git. In Magit, you can run magit-status, find the diffs for the changes that you...
Filter dict to contain only certain keys?
...e got a dict that has a whole bunch of entries. I'm only interested in a select few of them. Is there an easy way to prune all the other ones out?
...
iOS change navigation bar title font and color
...answers. I'm just sharing the storyboard version for setting the font.
1. Select Your Navigation Bar within your Navigation Controller
2. Change the Title Font in the Attributes Inspector
(You will likely need to toggle the Bar Tint for the Navigation Bar before Xcode picks up the new font)
...
disable nganimate for some elements
...ng-show , etc, are affected by that, I want to leverage ngAnimate for some selected elements.
For performance and some bugs in elements that shows and hide very speedy.
...
How to do joins in LINQ on multiple fields in single join
...d2}, (x, y) => x);
While the last argument (x, y) => x is what you select (in the above case we select x).
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How to download source in ZIP format from GitHub?
... under the Code tab:
If you don't see the button:
Make sure you've selected <> Code tab from right side navigation menu, or
Repo may not have a zip prepared. Add /archive/master.zip to the end of the repository URL and to generate a zipfile of the master branch:
http://github.com/use...
Why do you need to create a cursor when querying a sqlite database?
...les traversal over the records in a database". For example c.execute('''SELECT * FROM users''') returns an iterator that you can call fetchall() on (or another cursor method). Some SQL queries return empty iterators, but that should be expected, not surprising.
– Powers
...
QLabel: set color of text and background
...nd-color :"+colcode+" ; color : blue; }");
getColor() method returns the selected color.
You can change label color using stylesheet
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How to get the size of a string in Python?
... str you should know which encoding your str object is using. Then you can convert it to unicode object and get character count:
>>> print(len('йцы'.decode('utf8'))) #String contains Cyrillic symbols
3
B. The sys.getsizeof() function does the same thing as in Python 3 - it returns co...