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How do short URLs services work?
... TinyURL or Metamark work?
Do they simply associate the tiny URL key with a [virtual?] web page which merely provide an "HTTP redirect" to the original URL? or is there more "magic" to it ?
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How to create a file in memory for user to download, but not through server?
... can create a text file on the client side and prompt the user to download it, without any interaction with the server?
I know I can't write directly to their machine (security and all), but can I create and prompt them to save it?
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How can I close a Twitter Bootstrap popover with a click from anywhere (else) on the page?
I'm currently using popovers with Twitter Bootstrap, initiated like this:
31 Answers
3...
Android check internet connection [duplicate]
...rying to create a function that checks if a connection is available and if it isn't, go to an activity that has a retry button and an explanation.
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UIView with rounded corners and drop shadow?
....layer setShadowColor:[UIColor blackColor].CGColor];
[v.layer setShadowOpacity:0.8];
[v.layer setShadowRadius:3.0];
[v.layer setShadowOffset:CGSizeMake(2.0, 2.0)];
You can adjust the settings to suit your needs.
Also, add the QuartzCore framework to your project and:
#import <QuartzCore/Quart...
How does virtual inheritance solve the “diamond” (multiple inheritance) ambiguity?
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You want: (Achievable with virtual inheritance)
A
/ \
B C
\ /
D
And not: (What happens without virtual inheritance)
A A
| |
B C
\ /
D
Virtual inheritance means that there will be only 1 instance of the base A ...
AddRange to a Collection
...sked me today how to add a range to a collection. He has a class that inherits from Collection<T> . There's a get-only property of that type that already contains some items. He wants to add the items in another collection to the property collection. How can he do so in a C#3-friendly fashion...
Immutable array in Java
Is there an immutable alternative to the primitive arrays in Java? Making a primitive array final doesn't actually prevent one from doing something like
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throws Exception in finally blocks
...
I usually do it like this:
try {
// Use the resource.
} catch( Exception ex ) {
// Problem with the resource.
} finally {
// Put away the resource.
closeQuietly( resource );
}
Elsewhere:
protected void closeQuietly( Resource r...
INotifyPropertyChanged vs. DependencyProperty in ViewModel
When implementing the ViewModel in a Model-View-ViewModel architecture WPF application there seem to be two major choices how to make it databindable. I have seen implementations that use DependencyProperty for properties the View is going to bind against and I have seen the ViewModel implementing...