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How to get an enum value from a string value in Java?
...te that the name must be an exact match, including case: Blah.valueOf("a") and Blah.valueOf("A ") both throw an IllegalArgumentException.
The static methods valueOf() and values() are created at compile time and do not appear in source code. They do appear in Javadoc, though; for example, Dialog.Mo...
How to avoid Dependency Injection constructor madness?
...ts the number of dependency permutations both in the new Aggregate Service and for the dependencies left behind. This makes both simpler to deal with.
– Mark Seemann
Mar 11 '10 at 5:56
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How is Racket different from Scheme?
...
Racket is ultimately based on R5RS, and not R6RS and not a strict superset of either. I don't think it can be called 'Scheme' because it's not backwards compatible with any Scheme standard.
Most implementations offer extensions, but are otherwise backwards com...
Catch Ctrl-C in C
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With a signal handler.
Here is a simple example flipping a bool used in main():
#include <signal.h>
static volatile int keepRunning = 1;
void intHandler(int dummy) {
keepRunning = 0;
}
// ...
int main(void) {
signal(SIG...
Entity Framework - Include Multiple Levels of Properties
...ided seems to provide the answer. Let me try this: To include a collection and then a collection one level down: query.Include(e => e.Level1Collection.Select(l1 => l1.Level2Collection)).
– Bob Horn
May 30 '12 at 19:46
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How do I tar a directory of files and folders without including the directory itself?
...he job in one line. It works well for hidden files as well. "*" doesn't expand hidden files by path name expansion at least in bash. Below is my experiment:
$ mkdir my_directory
$ touch my_directory/file1
$ touch my_directory/file2
$ touch my_directory/.hiddenfile1
$ touch my_directory/.hiddenfile2...
How to keep index when using pandas merge
I would like to merge two DataFrames , and keep the index from the first frame as the index on the merged dataset. However, when I do the merge, the resulting DataFrame has integer index. How can I specify that I want to keep the index from the left data frame?
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Django: Set foreign key using integer?
...y is a particularly useful aspect of Django, one that everyone should know and use from time to time when appropriate.
caveat:
@RuneKaagaard points out that employee.type is not accurate afterwards in recent Django versions, even after calling employee.save() (it holds its old value). Using it wou...
Custom ImageView with drop shadow
Okay, I've been reading and searching around, and am now banging my head against the wall trying to figure this out. Here's what I have so far:
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How to specify data attributes in razor, e.g., data-externalid=“23151” on @this.Html.CheckBoxFor(…)
...MyModel.MyBoolProperty" data-externalid="23521" class="myCheckBox" />
And that's true for all Html helpers taking a htmlAttributes anonymous object as argument, not only the CheckBoxFor helper.
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