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Could not find an implementation of the query pattern
...ry = (from p in tblPersoon.Cast<Person>() select p).Single();
This kind of error (Could not find an implementation of the query pattern) usually occurs when:
You are missing LINQ namespace usage (using System.Linq)
Type you are querying does not implement IEnumerable<T>
Edit:
Apar...
Why is the C++ STL is so heavily based on templates? (and not on *interfaces*)
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The short answer is "because C++ has moved on". Yes, back in the late 70's, Stroustrup intended to create an upgraded C with OOP capabilities, but that is a long time ago. By the time the language was standardized in 1998, it was no longer an OOP language. It was a multi-paradigm ...
DateTime.Now vs. DateTime.UtcNow
...een wondering what exactly are the principles of how the two properties work. I know the second one is universal and basically doesn't deal with time zones, but can someone explain in detail how they work and which one should be used in what scenario?
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Switching to a TabBar tab view programmatically?
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JordanJordan
21.5k1010 gold badges4747 silver badges6262 bronze badges
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What is the difference between linear regression and logistic regression?
...pting to use the linear regression output as probabilities but it's a mistake because the output can be negative, and greater than 1 whereas probability can not. As regression might actually
produce probabilities that could be less than 0, or even bigger than
1, logistic regression was introduced.
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Hide hidden(dot) files in github atom editor
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Edit > Preferences > Packages
In the field below "Installed Packages" type: "Tree View". This package has a few settings you can toggle, "Hide Ignored Names" is what you're looking for.
It's a really buried setting, not sure why.
You can also add...
How to reformat JSON in Notepad++?
I need Notepad++ to take a json string from this
21 Answers
21
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Close and Dispose - which to call?
...ce to provide Close method where suitable. Here is a citation from Framework design guidelines
Consider providing method Close(), in addition to the Dispose(), if close is standard terminology in the area. When doing so, it is important that you make the Close implementation identical to Dispose...
How do you round a number to two decimal places in C#?
...= 1.995555M;
Math.Round(b, 2); //returns 2.00
You might also want to look at bankers rounding / round-to-even with the following overload:
Math.Round(a, 2, MidpointRounding.ToEven);
There's more information on it here.
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Get the value in an input text box
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ConradConrad
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