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Why do we need the “event” keyword while defining events?
...d of the get/set of a property). When you declare a field-like event (i.e. one where you don't specify the add/remove bits yourself) a public event is created, and a private backing field. This lets you raise the event privately, but allow public subscription. With a public delegate field, anyone ca...
UICollectionView inside a UITableViewCell — dynamic height?
One of our application screens requires us to place a UICollectionView inside of a UITableViewCell . This UICollectionView will have a dynamic number of items, resulting in a height which must be calculated dynamically as well. However, I am running into problems trying to calculate the heigh...
Do checkbox inputs only post data if they're checked?
... painful thruth, only checked checkboxes are sent to server, not unchecked ones. If you know in advance what checkboxes are on page then it is not problem on server side script to manage them. The problem is when you do not know that in advance - dynamically created checkboxes on page depending on s...
How can I easily view the contents of a datatable or dataview in the immediate window
... Debug.Write(Environment.NewLine);
}
}
#endregion
I then I will call one of the above functions in the immediate window and the results will appear there as well.
For example if I want to see the contents of a variable 'myDataset' I will call printTbl(myDataset). After hitting enter, the resul...
Insert a row to pandas dataframe
...
One way to achieve this is
>>> pd.DataFrame(np.array([[2, 3, 4]]), columns=['A', 'B', 'C']).append(df, ignore_index=True)
Out[330]:
A B C
0 2 3 4
1 5 6 7
2 7 8 9
Generally, it's easiest to append d...
How do I speed up the scroll speed in a JScrollPane when using the mouse wheel?
...
One way would be to set the unit increment of the scrollbar to a larger number:
scrollPane.getVerticalScrollBar().setUnitIncrement(20);
share
...
Are Java static initializers thread safe?
...fully-qualified name, but represent different types that cannot be cast to one another.
– Erwin Bolwidt
Jan 8 '16 at 8:51
1
...
How to enter quotes in a Java string?
...ing";
String ROM = "\"" + theFirst + "\"";
Or, if you want to do it with one String variable, it would be:
String ROM = "Java Programming";
ROM = "\"" + ROM + "\"";
Of course, this actually replaces the original ROM, since Java Strings are immutable.
If you are wanting to do something like tur...
Grasping the Node JS alternative to multithreading
...hread from the thread pool to perform a read and set a callback when it's done which means that the read could be happening on a different thread/core while the main node.js program is doing something else.
But from a node.js point of view, it's entirely single threaded and won't directly use more ...
Why can't Python's raw string literals end with a single backslash?
...kslash is part of raw string. Once parser enters a raw string (non Unicode one) and encounters a backslash it knows there are 2 characters (a backslash and a char following it).
This way:
r'abc\d' comprises a, b, c, \, d
r'abc\'d' comprises a, b, c, \, ', d
r'abc\'' comprises a, b, c,...