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How can I detect if this dictionary key exists in C#?
...GetValue:
dict.TryGetValue(key, out value);
Update: according to a comment the actual class here is not an IDictionary but a PhysicalAddressDictionary, so the methods are Contains and TryGetValue but they work in the same way.
Example usage:
PhysicalAddressEntry entry;
PhysicalAddressKey key ...
Implement paging (skip / take) functionality with this query
I have been trying to understand a little bit about how to implement custom paging in SQL, for instance reading articles like this one .
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Forms authentication timeout vs sessionState timeout
I have code that i am looking through regarding session time outs of the website. In the web.config i came across this code.
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How do I get a TextBox to only accept numeric input in WPF?
...e.Handled = !IsTextAllowed(e.Text);
I use a simple regex in IsTextAllowed method to see if I should allow what they've typed. In my case I only want to allow numbers, dots and dashes.
private static readonly Regex _regex = new Regex("[^0-9.-]+"); //regex that matches disallowed text
private static...
How to define a custom ORDER BY order in mySQL
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Man you just saved me a rewrite in magento :)
– Erik Simonic
Feb 6 '15 at 15:18
1
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Convert a row of a data frame to vector
I want to create a vector out of a row of a data frame. But I don't want to have to row and column names. I tried several things... but had no luck.
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What are “signed” cookies in connect/expressjs?
... or not.
Edit
And to create a signed cookie you would use
res.cookie('name', 'value', {signed: true})
And to access a signed cookie use the signedCookies object of req:
req.signedCookies['name']
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How to create circle with Bézier curves?
...ezier curves.
To complete the other answers : for Bezier curve with n segments the optimal distance to the control points, in the sense that the middle of the curve lies on the circle itself, is (4/3)*tan(pi/(2n)).
So for 4 points it is (4/3)*tan(pi/8) = 4*(sqrt(2)-1)/3 = 0.552284749831.
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What is the shortest function for reading a cookie by name in JavaScript?
What is the shortest, accurate, and cross-browser compatible method for reading a cookie in JavaScript?
15 Answers
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format statement in a string resource file
...d.
Quote from Android Docs: String Formatting and Styling:
<string name="welcome_messages">Hello, %1$s! You have %2$d new messages.</string>
In this example, the format string has two arguments: %1$s is a
string and %2$d is a decimal integer. You can format the string with
a...