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How can i query for null values in entity framework?
...ng.Equals(null)
select entry;
MSDN Reference: LINQ to SQL: .NET Language-Integrated Query for Relational Data
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Is it safe to check floating point values for equality to 0?
...t be a good idea to write a little helper function or extension method in .NET 3.5 for comparing:
public static bool AlmostEquals(this double double1, double double2, double precision)
{
return (Math.Abs(double1 - double2) <= precision);
}
This could be used the following way:
double d1 =...
How to perform Single click checkbox selection in WPF DataGrid?
...
Based on blog referenced in Goblin's answer, but modified to work in .NET 4.0 and with Row-Selection Mode.
Notice that it also speeds up DataGridComboBoxColumn editing - by entering edit mode and displaying dropdown on single click or text input.
XAML:
<Style TargetType="{x:Type ...
How can I embed a YouTube video on GitHub wiki pages?
...EXT HERE](https://img.youtube.com/vi/YOUTUBE_VIDEO_ID_HERE/0.jpg)](https://www.youtube.com/watch?v=YOUTUBE_VIDEO_ID_HERE)
For more information about Markdown look at this Markdown cheatsheet on GitHub.
For more information about Youtube image links look this question.
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How to capture Curl output to a file?
...ions to make curl output to a file
# saves it to myfile.txt
curl http://www.example.com/data.txt -o myfile.txt
# The #1 will get substituted with the url, so the filename contains the url
curl http://www.example.com/data.txt -o "file_#1.txt"
# saves to data.txt, the filename extracted from the...
how to use python to execute a curl command
...EDIT:
For your specific curl translation:
import requests
url = 'https://www.googleapis.com/qpxExpress/v1/trips/search?key=mykeyhere'
payload = open("request.json")
headers = {'content-type': 'application/json', 'Accept-Charset': 'UTF-8'}
r = requests.post(url, data=payload, headers=headers)
...
What is a singleton in C#?
...o what I consider to be the ideal implementation in 2020. That is, "using .NET 4's Lazy<T> type," as well as the link to the Microsoft Doc for the Lazy<T> Class.
– Chiramisu
Feb 20 at 21:55
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What are the recommendations for html tag?
...ential pitfalls for others.
I'll use a base tag of: <base href="http://www.example.com/other-subdirectory/"> as my example in the cases below, and will pretend that the page that the code is on is http://localsite.com/original-subdirectory
Major:
No links or named anchors or blank hrefs wil...
How to add test coverage to a private constructor?
...erage on my batik maven plugin, it seems to cover correctly. site.trajano.net/batik-maven-plugin/cobertura/index.html
– Archimedes Trajano
Apr 4 '14 at 13:21
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What is thread contention?
...n, I defer to @DavidSchwartz's detailed answer above.
There is also the '.NET CLR Locks and Threads:Total # of Contentions' Performance Counter. As taken from PerfMon description for this counter, it is defined as:
This counter displays the total number of times threads in the CLR have attempted ...