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Open file dialog and select a file using WPF controls and C#
....jpg)|*.jpg|GIF Files (*.gif)|*.gif";
// Display OpenFileDialog by calling ShowDialog method
Nullable<bool> result = dlg.ShowDialog();
// Get the selected file name and display in a TextBox
if (result == true)
{
// Open document
string filename = dlg...
Differences in auto-unboxing between Java 6 vs Java 7
...omparison to the same section in the Java 5/6 JLS, probably to clarify the allowed conversions.
Java 7 JLS says
An expression of a reference type may undergo casting conversion to a primitive type without error, by unboxing conversion.
Java 5/6:
A value of a reference type can be cast to...
Covariance and contravariance real world example
... you have a method that returns an IEnumerable<Teacher>. Covariance allows you to directly use that result for the methods that take an IEnumerable<Person>, substituting a more derived type for a less derived (more generic) type. Contravariance, counter-intuitively, allows you to use a...
How does Amazon RDS backup/snapshot actually work?
...o MySQL on some machines that we manage ourselves. I can't comment specifically, as I'm not an Amazon engineer, but several things I've learned that might explain what you're seeing:
Although Amazon does not share the backend details 100%, we strongly suspect that they are using their EBS system t...
How to enable zoom controls and pinch zoom in a WebView?
...Browser app for Android shows zoom controls when you're scrolling and also allows for pinch zooming. How can I enable this feature for my own Webview?
...
MySQL Select Date Equal to Today
... interval was wrong too >.< The downvotes were not that absurd after all.
– RandomSeed
Oct 21 '15 at 10:17
This ...
jQuery duplicate DIV into another DIV
...matched
elements, meaning that it copies the matched elements as well as all
of their descendant elements and text nodes. When used in conjunction
with one of the insertion methods, .clone() is a convenient way to
duplicate elements on a page.
...
Current time formatting with Javascript
...
A JavaScript Date has several methods allowing you to extract its parts:
getFullYear() - Returns the 4-digit year
getMonth() - Returns a zero-based integer (0-11) representing the month of the year.
getDate() - Returns the day of the month (1-31).
getDay() - Ret...
Why “decimal” is not a valid attribute parameter type?
It is really unbelievable but real. This code will not work:
3 Answers
3
...
How to replace a whole line with sed?
...
Michael J. Barber, g replace all the instance of regexp with replacement
– A-IV
Mar 28 '17 at 19:06
...