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• Is there a performance disadvantage for WPF''s Control properties?

  - by Joan Venge

  I am learning WPF and it seems like some properties like Content are of type Object. When you have a very complex UI with 1000s of controls, would this be a problem with boxing, etc? I see that this provides a lot of power (having Content to take anything), but just thought I should ask people's opinions about this.

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• Is it okay to programmatically create UITouch and UIEvent objects to emulate touch events?

  - by mystify

  I want to simulate some touches on my UI, without using private API. So one simple way to do it is to simply call those -touchesBegan:withEvent:, -touchesMoved:withEvent:, -touchesEnded:WithEvent: and -touchesCancelled:withEvent: methods inside my custom controls. For that, I would have to create UITouch and UIEvent dummy objects with appropriate data inside. Is this fine with them? Or would they reject my app?

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• how to crop an image using rectangale overlay and touch on iphone

  - by Amir

  Hey Everyone, I am looking for a good tutorial or sample code, that would show how to crop an image taking from iphone camera something in lines of http://www.defusion.org.uk/code/javascript-image-cropper-ui-using-prototype-scriptaculous/ but you would control the corners with your fingers any tip would be greatly appericated, as i am new to iphone dev. Thanks, Amir

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• Custom paging using GridView

  - by Anil Namde

  I have followed this article to implement the custom pagination using GridView. I have also done custom pagination using the DataGrid but i am still confused on following things. DataGrid which is there in the ASP.NET 1.1 having VirtualPageCount (something similar) which is set to render the pagination interface [1 2 3 4 5 ... something like this] GridView does not have the above mentioned property then how to generate the pagination UI?

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• Align views in the middle of anotehr views baseline in android

  - by jonney

  Hi.how do u allign views relative to the "middle" part of another view? i think its best explained with a pic of the UI i am trying to create in android http://img228.imageshack.us/img228/3239/howtom.png Thanks in advance

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• Problem dismissing multiple modal view controllers

  - by Sheehan Alam

  I am having trouble getting my modal view controllers to display properly. I have a parent view controller that is the delegate for modal view A. In modal view A I am presenting modal view B, and having the delegate dimiss modal view A. When modal view B appears it seems to display but the screen dims, and the UI locks up, but the app doesn't crash. I set animation settings to NO and I am still getting the same issue.

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• How to edit Selection indicator in UIPicker?

  - by Tattat

  Ad you can see, there is a example. The UI picker's Selection indicator. How can I do the similar thing on my Apps?

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• SVN: Track merges

  - by FoxyBOA

  Is it possible in SVN 1.6 to track where a commit was merged. I'm especially interesting in UI based solution (Eclipse plugin will be great).

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• HTML text editor in ASP.NET 2.0

  - by Sachin Gaur

  I am developing a web application where user has the option to send email to other users. I am looking for any in-built HTML text editor for ASP.NET 2.0. I know latest AJAX release for .NET 3.5 has provided this control. I am looking for a similar control but in ASP.NET 2.0. Is there any other UI control that is build using Javscript or jQuery, which can be used to allow user to enter HTML formatted message?

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• How to start Android Kernel programming?

  - by Rajapandian

  Hi All, I am 6 months experience in Android, use to develop simple UI based application. Now i want to write application targeting the Android core Kernel.For example i want to develop a Framework which is not present in Android.To achieve that we have to write the code for the Kernel. I dont know where and how to start the Android Kernel Programming. If anybody knows the way to start it please help me. Regards, Rajapandian.K

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• jQuery: How can I show an image popup onclick of the thumbnail?

  - by dexter

  In my aspx page I have a thumbnail image <img>. When the user clicks on that image I would like a popup to show that blocks out the rest of the UI with the larger (full) version of the image. Are there any plugins that can do this?

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• Android Development Tips, Tricks & Gotchas

  - by Mat Nadrofsky

  I'm starting down the road of Android Development. At this point I'm looking for some insight from other developers who have been doing 'droid development and have some experience to share with someone who is just starting out. This can be anything from API to AVM to IDE. Any unexpected things come up while building your apps? Any tips for project layout or organization that help facilitate the deployment process to the Android AppStore? Any patterns which specifically helped in a particular situation? Even links to great blogs or sample apps and resources beyond those which you can grab from Google Code would be appreciated.

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• learning OO with PHP

  - by dole doug

  Hi there I've started to learn OO programming, but using the PHP language with the help of the "PHP 5 Objects, Patterns, and Practice" book. The thing is that I wish to learn to use into same time the CakePHP framework which make use a lot of the MVC pattern. Because I don't know much about OO and less about MVC I wish to understand the later one but assumptions I make with my OO knowledges might have bad impact on long term. Does anyone know a good tutorial about what means MVC (more than cakephp manual says about it, but more easy to read/understand than wikipedia)? TY

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• C or C++ to write a compiler?

  - by H.Josef

  I want to write a compiler for a custom markup language, I want to get optimum performance and I also want to have a good scalable design. Multi-paradigm programming language (C++) is more suitable to implement modern design patterns, but I think that will degrade performance a little bit (think of RTTI for example) which more or less might make C a better choice. I wonder what is the best language (C, C++ or even objective C) if someone wants to create a modern compiler (in the sense of complying to modern software engineering principles as a software) that is fast, efficient, and well designed.

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• Followup question on the Eclipse New Plug-in Project dialog

  - by Anon Support 2010

  Does the option "This plug-in will make contributions to the UI" essentially get ignored if the previous option "Generator an activator, a Java class that controls the plug-in's lifecycle" is NOT selected" ?

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• Setting a registry value based on dialog in a visual studio setup project

  - by Sam Saffron

  I have visual studio setup project with a custom RadioButtons dialog. How do I get it to write the value of the ButtonProperty in the registry after it is selected in the UI?

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• Multithreading or task parallel library

  - by Bruce Adams

  I have an application which performs 30 independent tasks simultaneously using multithreading, each task retrieves data over http, performs a calculation and returns a result to the ui thread. Can I use tpl to perform the same tasks? Does tpl create 30 new threads and spread them over all the available cores, or does it just split the tasks over the available cores and use one thread per core? Will there be a performance boost using tpl over multithreading in this case?

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• Adding additional js files breaks jQuery IntelliSense

  - by Brian David Berman

  I have been using jQuery IntelliSense in VS2008 and it has been great. Recently I added a reference to jQuery UI and since then, the jQuery IntelliSense has went away. I found that once you reference another .js file in your document, the IntelliSense goes away. Any way to avoid this?

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• What is the Best WPF Ribbon Control Suite?

  - by steve

  I'm going to add a WPF Ribbon UI to my program. What is the best suite of WPF controls including a ribbon control, based on your experiences? Thanks!

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• Winforms - what's a cool taskbar/system tray notifier approach?

  - by Greg

  Hi What's a cool taskbar/system tray notifier approach? To get that latest cool looking sliding windows type notifications can I stay WinForms, or do I need to go WFP? Which control/class/framework should I look at? Basically after a more fresher:modern looking UI than the old winforms popular bubbles etc

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• Cocoa @sum array operator too slow - alternatives?

  - by icodestuff

  I've got a text field value bound to a key path that uses @sum. When the array controller is filtered, the text field updates properly, but extremely slowly, lagging the UI or outright beachballing after every key press (less so as the number of items in arrangedObjects decreases). There is no lag if I don't use @sum; I've narrowed it down to this. Is there a faster way to do the same thing?

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• VU meter implementaion in iphone

  - by Sreelal

  Hi, I am developing an aplication for iphone which records audio and save that audio file .I need to create a UI similar to that in Voice Memo app with VU meter .I implemented codes to record audio,but i have no idea about VU meter implementation.Looking forward for a reply ......Thanks in advance

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• Does mixing Quartz and OpenGL-ES cause big performance degrade??

  - by Eonil

  I have a plan to make a game using OpenGL for 3D world view, and CALayer(or UIView) for HUD UI. It's easy to imagine performance degrade from mixing them, but the document which mention this impact disappeared: http://developer.apple.com/iphone/library/technotes/tn2008/tn2230.html I cannot find the document on current version of SDK reference. And I got this document: http://gamesfromwithin.com/gdc-2010-the-best-of-both-worlds-using-uikit-with-opengl If you experienced about this, please let me know about performance impact on current SDK.

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• ruby/ruby on rails memory leak detection

  - by Josh Moore

  I wrote a small web app using ruby on rails, its main purpose is to upload, store, and display results from xml(files can be up to several MB) files. After running for about 2 months I noticed that the mongrel process was using about 4GB of memory. I did some research on debugging ruby memory leaks and could not find much. So I have two questions. Are there any good tools that can be used to find memory leaks in Ruby/rails? What type of coding patterns cause memory leaks in ruby?

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• Portability among mobile platforms

  - by ElectricDialect

  Do any libraries or other development resources exist that can help reduce the effort involved in porting applications between various mobile platforms? In particular, I am interested in supporting iPhone, Android, and Windows Mobile. Some areas of concern include UI, client-server communication, and hardware support (e.g., camera, GPS, etc).

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