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How to quickly check if folder is empty (.NET)?
...them to return an IEnumerable instead of an array, and start returning results before reading all the directory contents.
What's New in the BCL in .NET 4 Beta 1
Directory.EnumerateFileSystemEntries method overloads
public bool IsDirectoryEmpty(string path)
{
IEnumerable<string> items =...
Dashed line border around UIView
...eate image with dashed or doted drawing and add here
Here you've to add <QuartzCore/QuartzCore> framework in the project and import it with below line in YourViewController.m file.
#import <QuartzCore/QuartzCore.h>
...
How to pass arguments into a Rake task with environment in Rails? [duplicate]
... :hello, :message, :needs => :environment do |t, args|
args.with_defaults(:message => "Thanks for logging on")
puts "Hello #{User.first.name}. #{args.message}"
end
Updated per @Peiniau's comment below
As for Rails > 3.1
task :t, arg, :needs => [deps] # deprecated
Please use
...
Why do 64-bit DLLs go to System32 and 32-bit DLLs to SysWoW64 on 64-bit Windows?
...indows\
For example, your installer puts your dlls into:
\program files\<your app dir>\
or
\program files\common files\<your app name>\
(Note: The way you actually do this is to use the environment var: %ProgramFiles% or
%ProgramFiles(x86)% to find where Program Files is.... you d...
Check if OneToOneField is None in Django
...
Note that in Python < 3.2, hasattr will swallow all exceptions that happen during the database lookup, and not just DoesNotExist. This is probably broken, and not what you want.
– Pi Delport
Mar 22 '13 at...
How to log request and response body with Retrofit-Android?
... I see. Unfortunately this doesn't give you the response body, although it does state in the doc that LogLevel.FULL should give you the response body.
– theblang
Apr 17 '14 at 16:45
...
What should my Objective-C singleton look like? [closed]
...etting past the "if(!sharedSingleton)" test at the same time, and thus resulting in two [MySingleton alloc]s... The @synchronized {scope block} forces that hypothetical second thread to wait for the first thread to exit the {scope block} before being allowed to proceed into it. I hope this helps! ...
Pointer to pointer clarification
...
hope this piece of code can help.
#include <iostream>
#include <stdio.h>
using namespace std;
int main()
{
int i = 5, j = 6, k = 7;
int *ip1 = &i, *ip2 = &j;
int** ipp = &ip1;
printf("address of value i: %p\n", &i);
prin...
What is the explanation for these bizarre JavaScript behaviours mentioned in the 'Wat' talk for Code
...
Here's a list of explanations for the results you're seeing (and supposed to be seeing). The references I'm using are from the ECMA-262 standard.
[] + []
When using the addition operator, both the left and right operands are converted to primitives first (§11.6.1...
Merging two images in C#/.NET
...
After all this, I found a new easier method try this ..
It can join multiple photos together:
public static System.Drawing.Bitmap CombineBitmap(string[] files)
{
//read all images into memory
List<System.Drawing.Bitmap> images = new List<System.Drawing.Bitmap>();
System...