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Convert generic List/Enumerable to DataTable?
...
Here's a nice 2013 update using FastMember from NuGet:
IEnumerable<SomeType> data = ...
DataTable table = new DataTable();
using(var reader = ObjectReader.Create(data)) {
table.Load(reader);
}
This uses FastMember's meta-programming API for maximum performance. If you want to rest...
Position of least significant bit that is set
...n attached. My favourite solution for your problem (from that site) is «multiply and lookup»:
unsigned int v; // find the number of trailing zeros in 32-bit v
int r; // result goes here
static const int MultiplyDeBruijnBitPosition[32] =
{
0, 1, 28, 2, 29, 14, 24, 3, 30, 22, 20, 15,...
Func delegate with no return type
...nc delegates return something; all the Action delegates return void.
Func<TResult> takes no arguments and returns TResult:
public delegate TResult Func<TResult>()
Action<T> takes one argument and does not return a value:
public delegate void Action<T>(T obj)
Action is ...
Is there a range class in C++11 for use with range based for loops?
... template arguments at compile time itself.
//your version
auto x = range<m,n>(); //m and n must be known at compile time
//my version
auto x = range(m,n); //m and n may be known at runtime as well!
Here is the code:
class range {
public:
class iterator {
friend class range;
...
How to make a HTML Page in A4 paper size page(s)?
...ssuming your monitors display 72 dpi, you could add something like this:
<!DOCTYPE html>
<html>
<head>
<style>
body {
height: 842px;
width: 595px;
/* to centre page on screen*/
margin-left: auto;
margin-right: auto;
}
...
How to access random item in list?
...
public static class EnumerableExtension
{
public static T PickRandom<T>(this IEnumerable<T> source)
{
return source.PickRandom(1).Single();
}
public static IEnumerable<T> PickRandom<T>(this IEnumerable<T> source, int count)
{
retur...
How do I call ::std::make_shared on a class with only protected or private constructors?
...everything still be inline and doesn't require a derived class:
#include <memory>
#include <string>
class A {
protected:
struct this_is_private;
public:
explicit A(const this_is_private &) {}
A(const this_is_private &, ::std::string, int) {}
template <typenam...
Difference between if () { } and if () : endif;
...e, in my .phtml files (Zend Framework) I will write something like this:
<?php if($this->value): ?>
Hello
<?php elseif($this->asd): ?>
Your name is: <?= $this->name ?>
<?php else: ?>
You don't have a name.
<?php endif; ?>
...
How to get duration, as int milli's and float seconds from ?
...
Is this what you're looking for?
#include <chrono>
#include <iostream>
int main()
{
typedef std::chrono::high_resolution_clock Time;
typedef std::chrono::milliseconds ms;
typedef std::chrono::duration<float> fsec;
auto t0 = Time::now...
Should I use 'border: none' or 'border: 0'?
...d in CSS3 but not in any way relevant to this.
'border'
Value: [ <border-width> || <border-style> || <'border-top-color'> ] | inherit
Initial: see individual properties
Applies to: all elements
Inherited: no
Percentages: N/A
Media: v...