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How to call any method asynchronously in c#
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If you use action.BeginInvoke(), you have to call EndInvoke somewhere - else the framework has to hold the result of the async call on the heap, resulting in a memory leak.
If you don't want to jump to C# 5 with the async/aw...
How do I get SUM function in MySQL to return '0' if no values are found?
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Isn't SELECT SUM(IFNULL(column,0)) FROM table GROUP BY something more correct? What if we have some IS NULL values and some real values in "column"?
– DarkSide
Nov 11 '13 at 15:03
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Xcode 5 & Asset Catalog: How to reference the LaunchImage?
... = self.view.bounds.size;
NSString* viewOrientation = @"Portrait";
if (UIDeviceOrientationIsLandscape(orientation)) {
viewSize = CGSizeMake(viewSize.height, viewSize.width);
viewOrientation = @"Landscape";
}
NSArray* imagesDict = [[[NSBundle mainBundle] infoDictionar...
MySQL dump by query
...able" -u myuser -pxxxxxxxxx mydatabase
you can redirect it out to a file if you want :
mysql -e "select * from myTable" -u myuser -pxxxxxxxx mydatabase > mydumpfile.txt
Update:
Original post asked if he could dump from the database by query. What he asked and what he meant were different. H...
Class with single method — best approach?
...ge the method contents as needed. As it's a static method, we can't. Sure, if we just need to add functionality either before or after the old method, we can create a new class and call the old one inside of it - but that's just gross.
Interface woes
Static methods cannot be defined through interfa...
How does HashSet compare elements for equality?
...qualityComparer<T> (EqualityComparer<T>.Default unless you specify a different one on construction).
When you add an element to the set, it will find the hash code using IEqualityComparer<T>.GetHashCode, and store both the hash code and the element (after checking whether the elem...
In WPF, what are the differences between the x:Name and Name attributes?
...is set (not x:Name) when you edit the XAML via the designer. It appears as if MS encourages the use of Name over x:Name so I guess that is the defacto standard.
– Nebula
Feb 27 '13 at 9:15
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Forward declaration of nested types/classes in C++
...e library header file dependency with a little forward reference. I wonder if C++11 fixed it?
– Marsh Ray
Nov 7 '11 at 0:57
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How to select option in drop down protractorjs e2e tests
...hat takes an element and the optionNumber, and selects that optionNumber. If the optionNumber is null it selects nothing (leaving the dropdown unselected).
var selectDropdownbyNum = function ( element, optionNum ) {
if (optionNum){
var options = element.all(by.tagName('option'))
.th...
How to ignore files which are in repository?
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If the file is still displayed in the status, even though it is in the .gitignore, make sure it isn't already tracked.
git rm --cached config.php
If you just want to ignore it locally, you could also make it ignored by the...