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• How do I create a clicked state in a SIlverlight button?

  - by Roy

  How do I create a clicked state in visual state manager for a control that is based on a button control? I tried using a pressed state but once the mouse button is released it reverts back to the original color. I would like to change the color of the button when it is clicked on. I am not looking for a solution in the click event handler because this is a part of a template. Thank you

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• How to pick random (small) data samples using Map/Reduce?

  - by Andrei Savu

  I want to write a map/reduce job to select a number of random samples from a large dataset based on a row level condition. I want to minimize the number of intermediate keys. Pseudocode: for each row if row matches condition put the row.id in the bucket if the bucket is not already large enough Have you done something like this? Is there any well known algorithm? A sample containing sequential rows is also good enough. Thanks.

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• Problem in sort by date in multi array?

  - by AB

  I want to sort array A based on values in Array B actually in Array A I have topics like keyboard Laptop Desktop mouse and in Array B i have dates associated with each value in Array A how i can achieve this....I was thinking of using multi array but i m not sure if there is any default method of sorting multi array ...or if there is any other method to achieve this?

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• C preprocessor: using #if inside #define?

  - by Wxy

  I want to write a macro that spits out code based on the boolean value of its parameter. So say DEF_CONST(true) should be expanded into "const", and DEF_CONST(false) should be expanded into nothing. Clearly the following doesn't work because we can't use another preprocessor inside #defines: #define DEF_CONST(b_const) \ #if (b_const) \ const \ #endif Any idea about how to do it?

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• Niceforms radio buttons are shown on wrong position

  - by fvant

  When i am using Niceforms the normal text inputs and buttons work great and i even managed to get a custom theme for them based on the provided sample psd. But when i use radiobuttons/checkboxes, they get shown some where completely different than the labels. This happens consistently on FF,Chrome and Safari. As soon as i put any positioning css (a float:left or even a ) in the page the radiobuttons break.

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• Assigning IDs to instances of a class (Pythonic)

  - by mellort

  I want to have each instance of some class have a unique integer identifier based on the order that I create them, starting with (say) 0. In Java, I could do this with a static class variable. I know I can emulate the same sort of behavior with Python, but what would be the most 'Pythonic' way to do this? Thanks

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• By knowing VC++ MFC, how easy or difficult is to learn C#.Net?

  - by AKN

  Right now, I'm more into design & maintenance of MFC based application. I'm seeing good progress and requirement for C#.Net application. With this background knowledge, how easy or difficult is to learn C#.Net? Is there any tutorials available online that helps MFC developers to easily learn C#.Net quickly? Any help on this much appreciated!

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• What are the best JavaScript implementations of a gallery?

  - by gilles27

  We need to implement a gallery feature for our client's new website. They had a similar feature on their last site, which used Smooth Gallery, which in turn was based on Moo Tools. We could go ahead and do the same however, before we do, does anyone have any suggestions for alternatives and if so, please explain why you feel your choice is better.

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• How do you measure the effect of branch misprediction?

  - by Matt Wamboldt

  I'm currently profiling an implementation of binary search. Using some special instructions to measure this I noticed that the code has about a 20% misprediction rate. I'm curious if there is any way to check how many cycles I'm potentially losing due to this. It's a MIPS based architecture.

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• API to calculate drive distance between 2 US street addresses?

  - by ggonsalv

  Seems simple but users have no internet access. The application will be hosted internally on as Intranet site. The application will be able to make webservice calls to the internet. I tested and tried Mapquest. However all the other providers seems to assume the users are able to access the internet so their API's are javascript based with src tags pointing to internet URL's Any ideas?

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• Export video into animated gif?

  - by ishortman

  Is there any recommended programs that will output an animated gif based on a video input? Preferably mac but windows is fine as well.

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• Best printing tools, components for windows.forms applications.

  - by mkus

  Hi, I have started to research for a printing component in our windows.forms based project. I want to benefit from your experiences. There are some popular reporting tools in .net world such as crystal report, active reports, xtrareports etc. Could you say advantages and disadvantages of these tools or other tools you suggest?

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• Looking for open sourced BI (My Sql)

  - by fatnjazzy

  Hi, I know that there are few open sourced / Free BI projects and I am looking recommendations. I have a growing Mysql database that i got tired from writing sql queries + gui + filtering over and over again. if i am not able to find a free one than my budget will be: (1$ - 2500$ ) My needs are: Mysql 5 Connection. user permissions export options Basic Dashboard -- nice to have: Web Based GUI Development framework integration in PHP

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• How to build a client to Google wave

  - by Haggai

  Hi, By looking at current Google wave APIs, I can't find a way to create an alternative client. It's not a robot or gadget, and the embed API is very slim. Nevertheless, I do see some clients out there - such as Waver and Waveboard. How do they do it ? is it based on XMPP ?

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• Is it safe now to develop web application with HTML 5 specifications?

  - by Morteza M.

  Is it safe now to develop web application with HTML 5 specifications? or should we wait longer for final standards? I want to start developing a new project. I want it to be up to date in every aspects. should I wait more for html 5 or I can start programming based on it?

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• What is the spec behavior for two conflicting CSS styles from an external file? How well do browser

  - by RenderIn

  Suppose I have two files containing styles, a.css and b.css. I import them into my page in the <head> section. Both of these external files define a style for the class .someclass. Which one takes precedence? Is there any guarantee based on the order of the imports for css files that will state which style should be used?

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• Application Engineering and Number of Users

  - by Kramii

  Apart from performance concerns, should web-based applications be built differently according to the number of (concurrent) users? If so, what are the main differences for (say) 4, 40, 400 and 4000 users? I'm particularly interested in how logging, error handling, design patterns etc. would be be used according to the number of concurrent users.

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• Changing the UIBackButtonItem title

  - by Alpinista

  I have a navigationController-based app. I want to change the title of the back button for the root view controller. I have tried the following code in the rootViewController's viewDidLoad method, but no success: self.navigationItem.backBarButtonItem.title = @"Back"; Any ideas?

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• Show NSSegmentedControl menu when segment clicked, despite having set action

  - by enchilada

  My question is based on another question. Instead of repeating a bunch of stuff, I hope it's okay that I refer you to that other question instead: http://stackoverflow.com/questions/1203698/show-nssegmentedcontrol-menu-when-segment-clicked-despite-having-set-action/ My question is: How would the code within [self showGearMenu] look like, i.e. how would one actually use the popUpContextMenu:withEvent:forView method to accomplish what the poster of the other question wants? I ask because it seems that the question was resolved for the poster, but he never shared with us how he actually popped up the menu :)

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• Possible memory leaks in the Java Development Work

  - by harigm

  Can any one let me where the memory leaks can happen when we are developing Java based application. I am aware of Database but apart from that, is there any other possible ways . Please list the scenarios

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• How to effectively draw maps on .NET Compact framework.

  - by Vimvq1987

  I'm writing a navigator program for a GPS device running .NET Compact framework. This program constantly loads and draws maps (from .PNG files), based on coordinate of the GPS. I want it to do this smoothly. Is there any tips/techniques to do this? Thanks in advance.

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• mySQL query: How to insert with UNION?

  - by Industrial

  Hi everybody, I am kind of new to mySQL:s union functions, at least when doing inserts with them. I have gotten the following to work based upon a example found on the net: INSERT INTO tableOne(a, b) SELECT a, $var FROM tableOne WHERE b = $var2 UNION ALL SELECT $var,$var Ok, nothing strange about that. But what happens when I want to insert a third value into the database that has nothing to do with the logic of the Select being done? Like : INSERT INTO tableOne(a, b, c ) How could that be done?

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• Where can I get a machine readable representation of world currencies and their symbols?

  - by Khanzor

  I'm using ASP.Net and would like to display currencies based on a country. I've had a look at http://www.xe.com/symbols.ph, http://www.xe.com/iso4217.php and http://www.iso.org/iso/support/faqs/faqs_widely_used_standards/widely_used_standards_other/currency_codes/currency_codes_list-1.htm Is there anywhere I can get something that I can load into a database? Or is there something built in to SQL Server 2005/ASP.Net to help with this?

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• How to get the return value of the Jquery.ajax succes function

  - by Jishnu

  I have some code like this function doSomething(){ Jquery.ajax(type: "POST", url: "HelloWorld", success: function (msg) { if(msg.d =="Hello World") { return true; }else { return false; } } ); } i want to know something based on which the return value of the succes function. Can somebody help?

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• round slider select

  - by mmcgrail

  I am in need of a jquery based 360 rotational slider I want the user to be able to grab the end and rotate it 360 degrees anyone know of anything like that I can't seem to find one

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