Automating the InvokeRequired code pattern

Automating the InvokeRequired code pattern

I have become painfully aware of just how often one needs to write the following code pattern in event-driven GUI code, whereprivate void DoGUISwitch() { // cruisin for a bruisin' through exception city object1.Visible = true; obje

Ruby ampersand colon shortcut [duplicate]

Ruby ampersand colon shortcut [duplicate]

Possible Duplicate: What does map(&:name) mean in Ruby? In Ruby, I know that if I do:some_objects.each(&:foo)It's the same assome_objects.each { |obj| obj.foo }That is, &:foo creates the block { |obj| obj.foo }, turns it into a Proc, and

Is it possible to Pivot data using LINQ?

Is it possible to Pivot data using LINQ?

I am new to LINQ, but I am wondering if it is possible to use LINQ to pivot data from the following layout:CustID | OrderDate | Qty1 | 1/1/2008 | 1002 | 1/2/2008 | 2001 | 2/2/2008 | 3502 | 2/28/2008 | 2211 | 3/12

What is an optional value in Swift?

What is an optional value in Swift?

From Apple's documentation: You can use if and let together to work with values that might be missing. These values are represented as optionals. An optional value either contains a value or contains nil to indicate that the value is missi

Need a minimal Django file upload example [closed]

Need a minimal Django file upload example [closed]

As a newbie to Django, I am having difficulty making an upload app in Django 1.3. I could not find any up-to-date example/snippets. May someone post a minimal but complete (Model, View, Template) example code to do so? 1:Phew, Django doc

Accessing class variables from a list comprehension in the class definition

Accessing class variables from a list comprehension in the class definition

How do you access other class variables from a list comprehension within the class definition? The following works in Python 2 but fails in Python 3:class Foo: x = 5 y = [x for i in range(1)]Python 3.2 gives the error:NameError: glob

Replace method doesn't work

Replace method doesn't work

I want to replace the smart quotes like ‘, ’, “ and ” to regular quotes. Also, I wanted to replace the ©, ® and ™. I used the following code. But it doesn't help.Kindly help me to resolve this issue.str.replace(/[“”]/g, '"');str.replace(/[‘

Regex match entire words only

Regex match entire words only

I have a regex expression that I'm using to find all the words in a given block of content, case insensitive, that are contained in a glossary stored in a database. Here's my pattern:/($word)/iThe problem is, if I use /(Foo)/i then words li

Why does 128==128 return false but 127==127 return true when converting to Integer wrappers?

Why does 128==128 return false but 127==127 return true when converting to Integer wrappers?

class D { public static void main(String args[]) { Integer b2=128; Integer b3=128; System.out.println(b2==b3); }}Output:falseclass D { public static void main(String args[]) { Integer b2=127; Inte

How do I use NSTimer?

How do I use NSTimer?

How do I use an NSTimer? Can anyone give me step by step instructions? 1:Firstly I'd like to draw your attention to the Cocoa/CF documentation (which is always a great first port of call). The Apple docs have a section at the top of each

How to change the href for a hyperlink using jQuery

How to change the href for a hyperlink using jQuery

How can you change the href for a hyperlink using jQuery? 1:$("a").attr("href", "http://www.google.com/")...Will modify the href of all hyperlinks to point to Google. You probably want a somewhat more refined selector though. For instanc

JavaScript get clipboard data on paste event (Cross browser)

JavaScript get clipboard data on paste event (Cross browser)

How can a web application detect a paste event and retrieve the data to be pasted?I would like to remove HTML content before the text is pasted into a rich text editor.Cleaning the text after being pasted afterwards works, but the problem i

Why saving changes to a database fails?

Why saving changes to a database fails?

I have following C# code in a console application.Whenever I debug the application and run the query1 (which inserts a new value into the database) and then run query2 (which displays all the entries in the database), I can see the new entr

PHP + curl, HTTP POST sample code?

PHP + curl, HTTP POST sample code?

Can anyone show me how to do a php curl with an HTTP POST?I want to send data like this:username=user1, password=passuser1, gender=1To www.domain.comI expect the curl to return a response like result=OK. Are there any examples? 1:<?php/

Why is there an unexplainable gap between these inline-block div elements?

Why is there an unexplainable gap between these inline-block div elements?

I have two inline-block div elements, that are the same, positioned next to eachother. However there seems to be a mysterious space of 4 pixels between the two divs despite the margin being set to 0. There are no parent divs effecting them

How does the “this” keyword in Javascript act within an object literal? [duplicate]

How does the “this” keyword in Javascript act within an object literal? [duplicate]

This question already has an answer here: Self-references in object literal declarations 18 answers I've seen How does "this" keyword work within a fun

jQuery AJAX file upload PHP

jQuery AJAX file upload PHP

I want to implement a simple file upload in my intranet-page, with the smallest setup possible.This is my HTML part:and this is my JS jquery script:$("#

Use different Python version with virtualenv

Use different Python version with virtualenv

I have a Debian system currently running with python 2.5.4. I got virtualenv properly installed, everything is working fine. Is there a possibility that I can use a virtualenv with a different version of Python?I compiled Python 2.6.2 and w

When to use double or single quotes in JavaScript?

When to use double or single quotes in JavaScript?

console.log("double"); vs console.log('single');I see more and more JavaScript libraries out there using single quotes when handling strings. What are the reasons to use one over the other? I thought they're pretty much interchangeable.

How can I find WPF controls by name or type?

How can I find WPF controls by name or type?

I need to search a WPF control hierarchy for controls that match a given name or type. How can I do this? 1:I combined the template format used by John Myczek and Tri Q's algorithm above to create a findChild Algorithm that can be used o

How to 'insert if not exists' in MySQL?

How to 'insert if not exists' in MySQL?

I started by googling, and found this article which talks about mutex tables.I have a table with ~14 million records. If I want to add more data in the same format, is there a way to ensure the record I want to insert does not already exist

Random shuffling of an array

Random shuffling of an array

I need to randomly shuffle the following Array:int[] solutionArray = {1, 2, 3, 4, 5, 6, 6, 5, 4, 3, 2, 1};Is there any function to do that? 1:Using Collections to shuffle an array of primitive types is a bit of an overkill...It is simple

How can I view the source code for a function?

How can I view the source code for a function?

I want to look at the source code for a function to see how it works. I know I can print a function by typing its name at the prompt:> tfunction (x) UseMethod("t")In this case, what does Use

mysqli or PDO - what are the pros and cons? [closed]

mysqli or PDO - what are the pros and cons? [closed]

In our place we're split between using mysqli and PDO for stuff like prepared statements and transaction support. Some projects use one, some the other. There is little realistic likelihood of us ever moving to another RDBMS.I prefer PDO fo

In jQuery, how to attach events to dynamic html elements? [duplicate]

In jQuery, how to attach events to dynamic html elements? [duplicate]

This question already has an answer here: Event binding on dynamically created elements? 19 answers Suppose I have some jQuery code that attaches an ev