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• How to shrink Windows 7 XP Mode VHD files?

  - by A_M

  I'm trying to shrink a Windows 7 XP Mode VHD file with VhdResizer with little success. When I select my VHD file, it says "VhdExpand only supports fixed and dynamic VHD files". My XP Mode VHDs are dynamic files. Does anyone have any idea why it is failing? Failing that, does anyone have a process that I can use to shrink my XP mode VHD files on Windows 7 (64 bit)?

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• How to scroll to specific item using jQuery ?

  - by Misha Moroshko

  I have a big table with vertical scroll bar. I would like to scroll to a specific line in this table using jQuery/Javascript. Should I look for plug-ins for this task, or there are built-in methods ? Here is a little example to play with. Thanks a lot !

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• What does plus sign does here in string?

  - by Thanga

  I would like to know, what is the difference between two statements, these may be simple String ss="myname"; char[] charArray = ss.toCharArray(); for ( char character : charArray ) { System.out.println( +character );//Statements are here what does plus refers here: System.out.println( character ); //Statements are here: } I got the output for the code no errors but little doubt on how it works? What happens here? If you would down vote let me know the reason please , Thanks in advance

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• Node.js A Good authentication module ? or whats the proper way to authenticate users?

  - by Mohamed Ahmed

  I'm learning Node.js and looking forward to create a simple web application which will be based on Express and I was thinking of something like creating user groups and each group has its own users and each group has its own permissions (Just like ACL in Cakephp) So can anyone recommend a good module or whatever to do so ? Also I'm a little curious about security and how these passwords are going to be saved and what type of encryption the passwords will be encrypted in. Thanks :)

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• Standard upload web control alternatives

  - by Roy

  Hi all, I'm developing a ASP.NET MVC application. There is little space for me to put two standard file uploading web controls in a page. So I'm seeking for some succinct alternatives. A checkbox-look button pops up a file open dialog is ideal. Is there any kind of stuff? Thanks in advance!

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• Maximize application in system tray?

  - by Nicros

  I wrote a little WPF app that when 'closed' minimizes to the system tray (customer requirement). Double clicking pops it back up, or right click gives a context menu to exit. But if the app is minimized, and the users navigate to Start-All Programs-The Application it starts a new instance. What (in C#) do I need to do to get the app to maximize the running instance if the user does this rather than fire up a new instance? Thanks!

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• Pretty Pixel-level Picture Painting, Programatically

  - by dreeves

  My mac laptop has 1,024,000 pixels. What's the simplest way to turn my display completely black and go nuts with writing little programs to twiddle pixels to my heart's delight? To make it more concrete, say I wanted to implement the Chaos Game to draw a Sierpinski triangle, at the pixel level, with nothing else on the screen. What are ways to do that?

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• Is there a better way to declare an empty, typed matrix in MATLAB?

  - by Arthur Ward

  Is there a way to "declare" a variable with a particular user-defined type in MATLAB? zeros() only works for built-in numeric types. The only solution I've come up with involves using repmat() to duplicate a dummy object zero times: arr = repmat(myClass(), [1 0]) Without declaring variables this way, any code which does "arr(end+1) = myClass()" has to include a special case for the default empty matrix which is of type double. Have I missed something a little more sensible?

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• Ruby character encoding issue

  - by Roland Soós

  Hi, I write a little ruby script, which sends me an email when a new commit added to our svn. I get the log with this code: log = `/usr/bin/svnlook log #{ARGV[0]}` When I run my script from bash I get good encoded character in the email, but when I try it and create a new commit I get wrong hungarian characters. I commited this: tes oéá I get this in the email: Log: tes ?\197?\145?\195?\169?\195?\161 How can I solve this issue?

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• Setting last N bits in an array

  - by Martin

  I'm sure this is fairly simple, however I have a major mental block on it, so I need a little help here! I have an array of 5 integers, the array is already filled with some data. I want to set the last N bits of the array to be random noise. [int][int][int][int][int] set last 40 bits [unchanged][unchanged][unchanged][24 bits of old data followed 8 bits of randomness][all random] This is largely language agnostic, but I'm working in C# so bonus points for answers in C#

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• binary number in c++

  - by baash05

  In c++ 0x10 is the way to represent a hex value. if I leave off the 0x then it's dec. Is there a way to define a binary? Not that I can't derive 0x0003 is 11, but it would be cool if I could use 0b0011. It would just make the code a little more obvious.

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• Best programming based games

  - by Matt Sheppard

  Back when I was at school, I remember tinkering with a Mac game where you programmed little robots in a sort of pseudo-assembler language which could then battle each other. They could move themselves around the arena, look for opponents in different directions, and fire some sort of weapon. Pretty basic stuff, but I remember it quite fondly, even if I can't remember the name. Are there any good modern day equivalents?

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• Remember (persist) the filter, sort order and current page of jqGrid

  - by Jimbo

  My application users asked if it were possible for pages that contain a jqGrid to remember the filter, sort order and current page of the grid (because when they click a grid item to carry out a task and then go back to it they'd like it to be "as they left it") Cookies seem to be the way forward, but how to get the page to load these and set them in the grid before it makes its first data request is a little beyond me at this stage. Does anyone have any experience with this kind of thing with jqGrid? Thanks!

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• How to divide post on many pages in joomla cms

  - by butteff

  How to break article for many little pages? with navigation at page footer? for example: pages: 1 | 2 | 3 | 4

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• How can I select a column with no values?

  - by Lye

  I have a table with thousands of rows and hundreds of columns (not my design). I'm trying to find out which columns are never used so I can simplify the table a little. How can I find which of the columns have no value in all rows?

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• Beginning python for the web

  - by Josh K

  I'm looking for a nice tutorial or framework for developing Python written web applications. I've done lots in PHP, but very little in Python or Ruby and figured I'd start with the first one alphabetically.

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• which situation abstract class i should use

  - by Bharanikumar

  Hi , Am not worked on extream level of oops in my projects , So i have little doubts , In which situation should i use abstract method or classes , Basically i know about abstract class definition and flow, I got details from this URL Doubt is which situation should i use abstract class and methods ,

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• Is it OK to try to use Plinq in all Linq queries?

  - by Tony_Henrich

  I read that PLinq will automatically use non parallel Linq if it finds PLinq to be more expensive. So I figured then why not use PLinq for everything (when possible) and let the runtime decide which one to use. The apps will be deployed to multicore servers and I am OK to develop a little more code to deal with parallelism. What are the pitfalls of using plinq as a default?

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• Switch Target Framework in VS.NET 2010

  - by Jake Pearson

  Is there a way to change the target framework of all the projects of a solution in one fell swoop? Changing the target on 18 projects is a little tedious.

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• C# delegate to Java conversion

  - by Derek

  I am in the process of converting some code from C# to Java. I have never used C# before, but it has been pretty easy up to this point. I have a line that looks like this in the C# file: coverage.createMethod = delegate (Gridpoint gp){ //Some method stuff in here, with a return objecct } What exactly is this trying to do? It seems a little bit like an inline class but I am not sure how to go about converting htis to java

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• How to build a tree from a list of items and their children recursively in php?

  - by k1lljoy

  I have a list of items stored in the DB, simplified schema is like this: id, parent, name I need to generate a tree structure (in a form of a multi-dimensional array) that can be infinite levels deep. Top level items would have parent = 0. Next level down would have parent equal to the the id of the parent item, fairly straight forward. What would be the best way to do this, while consuming as little resources as possible?

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• What is the best commit message you have ever encountered?

  - by Can Berk Güder

  Following this topic, what is the best (as in witty and/or funny) commit message you have ever encountered? For example, here's the message for a commit I made a few minutes ago: This change should have never been made. It kills little children. NOTE TO SELF: Don't do everything [the boss] tells you immediately.

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• multiple action buttons one view on iphone

  - by alecnash

  I am trying to create a map app for iphone and I have a little problem. Every pin on the map has a different name. How can my program know which pin button is pushed so it can get the data from the server. I've created only one detailed view and I don't know how to make this work.

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• Elegent way to collapse or expand sub-sequences of a list in Python?

  - by forgot

  I want to collapse or expand sub-sequences of a list e.g. ['A', 'B', 'D', 'E', 'H'] -> ['AB', 'DE', 'H'] and vice versa currently I wrote some ugly code like: while True: for i, x in enumerate(s): if x == 'A' and s[i+1] == 'B': s[i:i+2] = 'AB' break else: break For people who asking 'why do that thing': Actually I'm working on a optimizing compiler and this is the peephole part. Writing pattern matching is a little annoying.

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• New Comer to JS Looking for Guidance

  - by New Coder

  I'm fairly new to JavaScript. Can anyone share some good advice on getting started? I have a little experience in ActionScript 3 and have taken a few Java classes toward my CS degree but my background is of a designer transitioning into development. My goal is to become a well rounded front-end developer and I'd like to move beyond the simple slideshow animations and rollover effects. Any guidance/wisdom will be much appreciated!

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