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How to create index in Entity Framework 6.2 with code first
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Without an explicit name:
[Index]
public int Rating { get; set; }
With a specific name:
[Index("PostRatingIndex")]
public int Rating { get; set; }
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Select N random elements from a List in C#
...ordinate, and use the first k (for you, k=5) indices to get your random subset. I think this is easy to implement, although it is O(n log n) time.
(2) Init an empty list s = [] that will grow to be the indices of k random elements. Choose a number r in {0, 1, 2, ..., n-1} at random, r = rand % n,...
'AND' vs '&&' as operator
I have a codebase where developers decided to use AND and OR instead of && and || .
10 Answers
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How can I reliably get an object's address when operator& is overloaded?
Consider the following program:
5 Answers
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How add context menu item to Windows Explorer for folders [closed]
... immediately. There isn't even need to open a new explorer window: new settings are loaded as soon as you right-click.
– jumpjack
Mar 1 '16 at 18:43
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Saving an Object (Data persistence)
...e pickle module in the standard library.
Here's an elementary application of it to your example:
import pickle
class Company(object):
def __init__(self, name, value):
self.name = name
self.value = value
with open('company_data.pkl', 'wb') as output:
company1 = Company('ban...
C# Sort and OrderBy comparison
...d = id;
Name = name;
}
public string Id { get; set; }
public string Name { get; set; }
}
static void Main()
{
List<Person> persons = new List<Person>();
persons.Add(new Person("P005", "Janson"));
persons.Add(new Per...
Redirect all to index.php using htaccess
...Feb '18 and Jan '19)
It's not actually necessary (nor even common now) to set the path as a $_GET variable, many frameworks will rely on $_SERVER['REQUEST_URI'] to retrieve the same information - normally to determine which Controller to use - but the principle is exactly the same.
This does simpl...
Add … if string is too long PHP [duplicate]
I have a description field in my MySQL database, and I access the database on two different pages, one page I display the whole field, but on the other, I just want to display the first 50 characters. If the string in the description field is less than 50 characters, then it won't show ... , but if...
Finding what branch a Git commit came from
Is there a way to find out what branch a commit comes from given its SHA-1 hash value?
14 Answers
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