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How to set top-left alignment for UILabel for iOS application?
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I have no Constraint options when I select a label.
– velkoon
Oct 6 '18 at 0:13
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What is the difference between Serializable and Externalizable in Java?
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We used Externalizable for large collections of "selected IDs" -- it was far more efficient externalizing as more-or-less a count & an array of primitive ints, than default serialization. That's a very simple usecase, nothing "special" or "unique".
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TransactionManagementError “You can't execute queries until the end of the 'atomic' block” while usi
...e database. pytest-django also supports this style of tests, which you can select using an argument to the django_db mark:
@pytest.mark.django_db(transaction=True)
def test_spam():
pass # test relying on transactions
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Many-to-many relationship with the same model in rails?
...ails generates in the log file. You'll find something like the following:
SELECT * FROM "posts"
INNER JOIN "post_connections" ON "posts".id = "post_connections".post_b_id
WHERE ("post_connections".post_a_id = 1 )
To make the association bi-directional, we'd have to find a way to make Rails OR the...
How do I sort strings alphabetically while accounting for value when a string is numeric?
..." };
var size = from x in sizes
orderby x.Length, x
select x;
foreach (var p in size)
{
Console.WriteLine(p);
}
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How to pass prepareForSegue: an object
...ntifier:sender: method to activate the transition to a new view based on a selection or button press.
For instance, consider I had two view controllers. The first contains three buttons and the second needs to know which of those buttons has been pressed before the transition. You could wire t...
How do I create a WPF Rounded Corner container?
...n. The extensions are VisiFire charting objects. The user pushes a button, selected from the list of buttons, to execute the desired chart.
' Create a ListBox of Buttons, one button for each MEF charting component.
For Each c As Lazy(Of ICharts, IDictionary(Of String, Object)) In ext.C...
Can I hex edit a file in Visual Studio?
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Menu File → Open → File
Select the file to be opened
On the open file dialog at the bottom there is a down arrow on the "Open" button
Click "Open With..."
Click "Binary Editor"
Click OK
Or for the keyboard geeks out there:
Ctrl + o
Ctrl + v (pas...
Converting a Uniform Distribution to a Normal Distribution
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You can use the PDF if you're prepared to randomly select a direction relative to the mean; do I understand that right?
– Mark McKenna
Sep 28 '14 at 21:43
2...
List distinct values in a vector in R
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You can also use the sqldf package in R.
Z <- sqldf('SELECT DISTINCT tablename.columnname FROM tablename ')
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