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Distinct not working with LINQ to Objects
...t smart when it comes to custom objects.
All it does is look at your list and see that it has two different objects (it doesn't care that they have the same values for the member fields).
One workaround is to implement the IEquatable interface as shown here.
If you modify your Author class like s...
How to check whether a file or directory exists?
...(err) { return false, nil }
return false, err
}
Edited to add error handling.
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Make function wait until element exists
...you can put your function. The interval solution is really a bad solution and should be used only if nothing else works.
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Aggregate function in an SQL update query?
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I put the three queries side-by-side and ran an execution plan. This answer had a cost of 5%.
– Margaret
Jan 6 '10 at 0:24
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How to maximize the browser window in Selenium WebDriver (Selenium 2) using C#?
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There's an outstanding issue to add this functionality to WebDriver, which can be tracked here: http://code.google.com/p/selenium/issues/detail?id=174
A workaround would be to use the JavascriptExector as follows:
public void resizeTest() ...
Is there a builtin confirmation dialog in Windows Forms?
...ike to create a simple confirm dialog saying "Please check the information and if you're sure it's correct, click OK."
3 An...
How to pass parameters to a view
...new MenuView({
collection: itemColl,
position: this.getPosition()
})
And then, in MenuView, you can use this.options.position.
UPDATE: As @mu is too short states, since 1.1.0, Backbone Views no longer automatically attach options passed to the constructor as this.options, but you can do it yo...
CSS /JS to prevent dragging of ghost image?
...ing under the assumption that the ghost image is visual indicator for drag-and-drop (which it is), and that most people who want to hide the ghost image generally don't care if drag-and-drop is disabled altogether.
– BoltClock♦
Jun 26 '14 at 1:28
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mysql command for showing current configuration variables
Can not find a command that displays the current configuration of mysql from within the database.
3 Answers
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How can I get the SQL of a PreparedStatement?
...ou have a statement, containing placeholders
it is sent to the DB server
and prepared there
which means the SQL statement is "analysed", parsed, some data-structure representing it is prepared in memory
And, then, you have bound variables
which are sent to the server
and the prepared statement ...