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JSON.net: how to deserialize without using the default constructor?
... trying to deserialize, then another alternative is to create a custom JsonConverter to instantiate and populate your object. For example:
class ResultConverter : JsonConverter
{
public override bool CanConvert(Type objectType)
{
return (objectType == typeof(Result));
}
pu...
How to change string into QString?
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If compiled with STL compatibility, QString has a static method to convert a std::string to a QString:
std::string str = "abc";
QString qstr = QString::fromStdString(str);
share
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improve ...
Converting a UNIX Timestamp to Formatted Date String
Using PHP, I want to convert UNIX timestamps to date strings similar to this: 2008-07-17T09:24:17Z
9 Answers
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What does string::npos mean in this code?
... Comparing == -1 might make also make some people think they can convert that into < 0 which is NOT the same thing and will not work.
– Andy Dent
Mar 26 '12 at 7:56
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Understanding implicit in Scala
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In scala implicit works as:
Converter
Parameter value injector
Extension method
There are 3 types of use of Implicit
Implicitly type conversion : It converts the error producing assignment into intended type
val x :String = "1"
val y:Int = x
String...
postgresql - sql - count of `true` values
...his works:
SELECT count(*) AS total
, sum(myCol::int) AS countTrue --convert Boolean to Integer
FROM yourTable
;
or better (to avoid :: and use standard SQL syntax):
SELECT count(*) AS total
, sum(CAST(myCol AS int)) AS countTrue --convert Boolean to Integer
FROM yourTable
;
...
Fastest way to determine if an integer's square root is an integer
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Wow! I'll try to convert this to Java and do a comparison, as well as an accuracy check on the results. I'll let you know what I find.
– Kip
Jan 12 '09 at 21:47
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How to export DataTable to Excel
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Try simple code, to convert DataTable to excel file as csv:
var lines = new List<string>();
string[] columnNames = dataTable.Columns
.Cast<DataColumn>()
.Select(column => column.ColumnName)
.ToArray();
var header = ...
Generate a random date between two other dates
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Convert both strings to timestamps (in your chosen resolution, e.g. milliseconds, seconds, hours, days, whatever), subtract the earlier from the later, multiply your random number (assuming it is distributed in the range [0, ...
Why can't I use float value as a template parameter?
... character pack template<char ...cs>, then the string literal can be converted into such a pack at compile time. Here is a demo on ideone. (Demo is C++14, but it's easy to port it back to C++11 - std::integer_sequence is the only difficulty)
– Aaron McDaid
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