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Group by in LINQ
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Absolutely - you basically want:
var results = from p in persons
group p.car by p.PersonId into g
select new { PersonId = g.Key, Cars = g.ToList() };
Or as a non-query expression:
var results = persons.GroupBy(
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Favicon dimensions? [duplicate]
...fari, etc.), you need to combine both types of icons.
favicon.ico
Although all desktop browsers can deal with this icon, it is primarily for older version of IE.
The ICO format is different of the PNG format. This point is tricky because some browsers are smart enough to process a PNG picture correc...
Why do we need RESTful Web Services?
...ng this low level of coupling is not easy to do. It is critical to follow all of the constraints of REST to succeed. Maintaining a purely stateless connection is difficult. Picking the right media-types and squeezing your data into the formats is tricky. Creating your own media types can be even...
Format Instant to String
...While this code snippet may solve the question, including an explanation really helps to improve the quality of your post. Remember that you are answering the question for readers in the future, and those people might not know the reasons for your code suggestion.
– Rosário Pe...
Call by name vs call by value in Scala, clarification needed
As I understand it, in Scala, a function may be called either
16 Answers
16
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Detecting design mode from a Control's constructor
...ses field, but (i think) static classes fields initialized when you first called them, so not a safe solution..
– Ibrahim Ozdemir
Feb 19 '17 at 15:25
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How to convert an NSString into an NSNumber
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Use an NSNumberFormatter:
NSNumberFormatter *f = [[NSNumberFormatter alloc] init];
f.numberStyle = NSNumberFormatterDecimalStyle;
NSNumber *myNumber = [f numberFromString:@"42"];
If the string is not a valid number, then myNumber will be nil. If it is a valid number, then you now have all of...
What exactly is metaprogramming?
...gram can examine information about itself. For example returning a list of all the properties of an object.
In languages like ActionScript, you can evaluate functions at runtime to create new programs such as eval("x" + i). DoSomething() would affect an object called x1 when i is 1 and x2 when i is...
Cleanest way to toggle a boolean variable in Java?
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That's...really obvious—oops! Don't know why I didn't think of it. Thanks.
– Kevin Griffin
Oct 22 '08 at 2:46
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.htaccess rewrite to redirect root URL to subdirectory
...as surprised that nobody mentioned this:
RedirectMatch ^/$ /store/
Basically, it redirects the root and only the root URL.
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