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Should I instantiate instance variables on declaration or in the constructor?
...ver to call overridable functions from the constructor! :) Effective Java, item 17 has a good discussion about it.
– Mohit Chugh
Aug 26 '15 at 6:33
1
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SQL query to get all values a enum can have
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SELECT enum_range(NULL::myenum)
If you want a separate record for each item in the enum:
SELECT unnest(enum_range(NULL::myenum))
Additional Information
This solution works as expected even if your enum is not in the default schema. For example, replace myenum with myschema.myenum.
The d...
Difference between CLOCK_REALTIME and CLOCK_MONOTONIC?
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CLOCK_REALTIME represents the machine's best-guess as to the current wall-clock, time-of-day time. As Ignacio and MarkR say, this means that CLOCK_REALTIME can jump forwards and backwards as the system time-of-day clock is changed, including by NTP.
CLOCK_MONOTON...
How to skip to next iteration in jQuery.each() util?
...simply use an empty return statement:
$.each(collection, function (index, item) {
if (!someTestCondition)
return; // go to next iteration
// otherwise do something
});
It's possible this might vary by version; this is applicable for jquery 1.12.4. But really, when you exit out the bo...
How can I ignore a property when serializing using the DataContractSerializer?
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Additionally, DataContractSerializer will serialize items marked as [Serializable] and will also serialize unmarked types in .NET 3.5 SP1 and later, to allow support for serializing anonymous types.
So, it depends on how you've decorated your class as to how to keep a member ...
What's a quick way to comment/uncomment lines in Vim?
...kest way to do it with vim since it requires to install a plugin. Also the best answer has already received more votes but it hasn't been marked as solution.
– whirmill
Jul 10 '18 at 10:17
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Linq to EntityFramework DateTime
... @SaeedAlg - In the first example it is necessary to read the items into memory. In the second example I kept two Where clauses to match the original format. Even if you compress the two into a single Where clause, Entity Framework generates identity SQL so it's really a matter of reada...
Sequence contains more than one element
...ingleOrDefault then falls into when you expect a collection to have 0 or 1 items and you want to check this happens every time...
– Achilles
Apr 18 '13 at 15:52
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Java: Best way to iterate through a Collection (here ArrayList)
Today I was happily coding away when I got to a piece of code I already used hundreds of times:
6 Answers
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Button in a column, getting the row from which it came on the Click event handler
I've set the itemsource of my WPF Datagrid to a List of Objects returned from my DAL. I've also added an extra column which contains a button, the xaml is below.
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