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Database Structure for Tree Data Structure
... its parents, finding the count of child nodes meeting certain conditions, etc. You need to know what information will be needed from the structure to determine the structure that will best fit your needs.
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ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type
...th the entity grabbed from the database, I was getting referential errors, etc. I was using "context.Entry(score).State = System.Data.Entity.EntityState.Modified;" but this finally worked! Thank you!!
– firecape
Jan 21 '16 at 13:08
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Usage of protocols as array types and function parameters in swift
...e objects using '===' operator.
I understand this won't work for structs, etc., but it was good enough in my case.
protocol SomeProtocol: class {
func bla()
}
class SomeClass {
var protocols = [SomeProtocol]()
func addElement(element: SomeProtocol) {
self.protocols.append(el...
How do I make my GUI behave well when Windows font scaling is greater than 100%
...ropped, moved off screen, extra or missing scrollbars on various controls, etc.
– Warren P
Nov 28 '11 at 15:55
@Warre...
Multiple Inheritance in C#
...ty of type SteeringWheel, IBrakable implies a property of type BrakePedal, etc.
Once you've done that, you could use the Extension Methods feature added to C# 3.0 to further simplify calling methods on those implied properties, eg:
public interface ISteerable { SteeringWheel wheel { get; set; } }
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Handling specific errors in JavaScript (think exceptions)
... Hi, welcome to StackOverflow. How is your answer better/more efficient/etc from the other 5 answers already posted?
– mjuarez
Jan 13 at 2:17
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Makefile, header dependencies
...n a build subfolder (so $OBJECTS contains build/main.o build/smbus.o build/etc...) and that certainly creates the .d files as you described with the apparent bug, but it certainly is not building the .o files at all, whereas it does if I remove the -MM and -MF.
– bobpaul
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Can you build dynamic libraries for iOS and load them at runtime?
...ess still works on Xcode 4, but see comment(s) below for updates to paths, etc.) Source is the iOS Place blog:
Xcode does not allow you to build dylib for iOS. App will be rejected if it’s not single binary. But I have an application that has plug-in architecture to load optional modules. I ju...
How to check if a file is a valid image file?
...more about it than just the format, like bitmap dimensions, format version etc.. So you might see this as a superficial test for "validity".
For other definitions of "valid" you might have to write your own tests.
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What is the purpose of XORing a register with itself? [duplicate]
...y, in the big picture it's faster. There are fewer bytes that have to be fetched from RAM.
– Loren Pechtel
Dec 7 '09 at 0:21
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