Wednesday, February 27, 2013

Union Operation using LINQ

Union Operation using LINQ Introduction   This working demonstrates one of interesting and most useful concept in LINQ. Question: What is union operation using LINQ?  In simple terms "It enables to perform union operation by using LINQ query based on the requested entities".   Step 1: Create a new web application   Step 2: Add new ADO.NETentity framework [...]

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C#,.NET,Architect,Intermediate,VS2010,.Net,Articles,Computer Tutorials, LINQ, LINQ Operators, LINQ Union Operator

Introduction to HTML5 WebSocket

WebSocket is a web technology that provides full-duplex communication channels over a single TCP connection. A full-duplex communication is the communication system that allows simultaneous bidirectional communication. A telephone conversation is a good example of full-duplex communication where in both parties can speak and hear at the same time. 

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omputer Tutorials, Web Development, HTML,HTML5, WebSockets

ASP.NET MVC Model Binding and Data Annotation

The ASP.NET MVC separates an web application into three main components: the model, the view, and the controller. The MVC framework maps URLs and passes requests to the controllers. It also provides model binding that retrieves data from requests, populates controller action parameters, takes care of the property mapping and type conversion typically involved in working with ASP.NET request data.

In this article, I will talk about model binding and data validation with data annotation. This article is meant to highlight some of the details of model binding and annotation in MVC that developers may face when you develop MVC application.

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C#,.NET,Architect,Intermediate,VS2010,.Net,Articles,Computer Tutorials, ASP.Net, MVC, MVC Model Binding

Building Sample Apps in Ruby, NodeJS and PHP

We all have favorite languages and frameworks for building web apps, but gaining experience with different toolsets can teach you a lot about the fundamentals of web programming. Derick Baily has been building sites recently with ASP.NET, JavaScript, Ruby on Rails and PHP, and demonstrates some interesting lessons learned from building the same site with each of them.

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Computer Tutorials, Web Development, Node.js, PHP, Ruby

Tips for smooth scrolling web pages (EdgeConf follow-up)

A lot of site performance tuning focuses on back-end plumbing and in-page code. But have you thought much about the implications of scrolling? Chris Lord explains smooth scrolling is a great target for rendering performance, some troubleshooting tips for finding barriers to smooth scrolling and a few thoughts on leveraging platform features as well.

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Computer Tutorials, Web Development, Smooth Scrolling

WebKit is the jQuery of Browser Engines

In one of the more interesting reactions to the news that Opera is switcing browser engine development to WebKit, John Resig explains why this development is similar to the industry-wide embrace the jQuery JavaScript framework. Far from leading to stagnation, jQuery led to second-tier frameworks such as: Bootstrap, Boilerplate, and Backbone. Likewise, cutting-edge WebKit development is likely to continue with added contributions from the Opera team.

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Computer Tutorials, Web Development, jQuery, WebKit

iOS Programming 101: Record and Play Audio using AVFoundation Framework

iOS provides various framework to let you work with sound in your app. One of the frameworks that you can use to play and record audio file is the AV Foundation Framework. In this tutorial, I'll walk you through the basics of the framework and show you how to manage audio playback, as well as, recording.

To provide you with a working example, I'll build a simple audio app that allows users to record and play audio. Our primary focus is to demonstrate the AV Foundation framework so the user interface of the app is very simple.

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iPad,iPhone,iPhone Resources,iPhone Articles,iPhone Development,iPhone Turorial,Mobile Development Tutorials,Mobile Developments,Objective C,AVFoundation Framework

iOS Passbook Tutorial Showing How To Setup A Simple Passbok Service

A tutorial showing how to set up a simple Passbook service explaining how to set up the Pass Type ID and certiics along with the source code used to set up the service and an example app utilizing the service.

You can find the tutorial on Ole's site here.

A great example – keep in mind there's no thought of security with this service so it's not something you'd want to unleash over the web.

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iPad,iPhone,iPhone Resources,iPhone Articles,iPhone Development,iPhone Turorial,Mobile Development Tutorials,Mobile Developments,Objective C, iOS Passbook, iOS Passbook Service

Performance Considerations for Entity Framework 5

Object-Relational Mapping frameworks are a convenient way to provide an abstraction for data access in an object-oriented application. For .NET applications, Microsoft's recommended O/RM is the Entity Framework. With any abstraction though, performance can become a concern.

This whitepaper was written to show the performance considerations when developing applications using the Entity Framework, to give developers an idea of the Entity Framework internal algorithms that can affect performance, and to provide tips for investigation and improving performance in their applications that use the Entity Framework. There are a number of good topics on performance already available on the web, and we've also tried pointing to these resources where possible.

Performance is a tricky topic. This whitepaper is intended as a resource to help you make performance related decisions for your applications that use the Entity Framework. We have included some test metrics to demonstrate performance, but these metrics aren't intended as absolute indicators of the performance you will see in your application.

For practical purposes, this document assumes Entity Framework 4 is run under .NET 4.0 and Entity Framework 5 is run under .NET 4.5. Many of the performance improvements made for Entity Framework 5 reside within the core components that ship with .NET 4.5.

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C#,.NET,Architect,Intermediate,VS2010,.Net,Articles,Computer Tutorials, Entity Framework, Entity Framework 5, Entity Framework Performance

BlackBerry: Working with XML

XML is one of the most commonly used data-interchange formats on the web. With the proliferation of smartphones, it has become a common requirement to parse and display XML documents on mobile devices. In this article, I'll teach you how to parse an XML document on BlackBerry and also display an XML document on BlackBerry.


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Mobile Development Tutorials,Mobile Developments, BlackBerry, XML

iPhone & iPad Keyboard Sizes

How to get the size of the on-screen keyboard on the iPhone and iPad, plus how to move the view up so the keyboard doesn't overlap fields on the lower half of the screen.

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iPad,iPhone,iPhone Resources,iPhone Articles,iPhone Development,iPhone Turorial,Mobile Development Tutorials,Mobile Developments,iPad Keyboard Sizes, 
iPhone Keyboard Sizes

Telerik releases XAML-SDK at GitHub

Q1 2013 is live! Our latest and greatest XAML (WPF and Silverlight) controls are evolving rapidly but not just the binaries. Our commitment to "make the life of developers easier" has brought us the idea of creating fully developer oriented XAML Software Development Kit (SDK). This new support material is aiming at showing how to use our controls in the best and easiest way.

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Articles,Computer Tutorials, Telerik,, XAML,XAML SDK,GitHub

Tuesday, February 26, 2013

Sharing AutoToDoubleTypeConverter - Useful for a XAML control developer

A long time ago while developing a custom control, I wrote a piece of code which allows a developer to enter "Auto" as string to a custom property of type double. Yesterday, I was in a need to use the same functionality in one of my control.   That reminds me the previous implementation and fortunately I was able to get it from TFS repository. Thus I thought to share the same with you in case you need it in future.   If you are building a custom control, you might want to add a double type property to set a specific height or width of the control and in that case, you might want to give user (I mean the developer who is using this control in his/her application) the option to set "Auto" value as the Height and Width properties of Framework Element does.   If you set the string value "Auto" to your custom double type property, you will get the following error: "Cannot convert source type 'string' to target type 'double'". This is a real fact. You can not...

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C#,.NET,Architect,Intermediate,VS2010,.Net,Articles,Computer Tutorials, XAML, AutoToDoubleTypeConverter

IE10 for Windows 7 Globally Available for Consumers and Businesses

Internet Explorer 10 is available worldwide in 95 languages for download today. We will begin auto updating Windows 7 customers to IE10 in the weeks ahead, starting today with customers running the IE10 Release Preview. With this final release, IE10 brings the same leading standards support, with improved performance, security, privacy, reliability that consumers enjoy on Windows 8, to Windows 7 customers.

Download Now

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Computer Softwares, Window Softwares, Software Download, Download, Internet Explorer, Internet Explorer 10

JavaScript - How to Get Screen Resolution of User or Client Machine

Introduction Here I will explain how to Get Monitor screen resolution using JavaScript or Get screen resolution of user in JavaScript. Description: In previous article I explained Set watermark text for textbox using JavaScript, JavaScript Set Default home page in IE, Mozilla, JavaScript add bookmark link to website and many articles relating to JavaScript, jQuery, SQL,asp.net etc.

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Computer Tutorials, Javascript, Web Development

Monday, February 25, 2013

How to build a custom control in iOS

Following the many requests on Reddit, here we go with the first article about custom controls. Thanks for suggesting it!

Whether you design your super custom user interfaces yourself, or a designer does the job for you, UIKit standard controls won't likely be enough for your needs.

For example, what if you want to build a control to help the user select an Angle value between 0 and 360?

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iPad,iPhone,iPhone Resources,iPhone Articles,iPhone Development,iPhone Turorial,Mobile Development Tutorials,Mobile Developments,Objective C,iOS Custom Control

Prerequisites of Studying WP Platform

One of the most frequent problems I faced while delivering Windows Phone Sessions using C#/XAML is that some of the attendees are of no background about the .NET Framework especially C# programming language. As a result, I've decided to start "Discovering Windows Platform" series with a post that shows the prerequisites of going through Windows Phone Platform whether using C#/XAML or any of the supported languages that will be also showed in this post.


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C#,.NET,Intermediate,Advanced,VS2010,.Net,Articles,.Net Tutorials,C#,Mobile Development Tutorials,Mobile Developments,Window Phone Tutorials,WP7,WP8

An Overview of the WP8 SDK

It didn't take long after the introduction of Windows Runtime (WinRT, the set of APIs that allow Windows Store apps to communicate with the Windows 8 operating system), for Microsoft to unveil the next generation of its mobile operating system, Windows Phone 8, which conveniently includes some of the APIs coming directly from WinRT. It's easy to imagine the APIs merging together at some point, as that would make writing applications for on-the-go devices such as tablets and mobile phones much easier.

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C#,.NET,Intermediate,Advanced,VS2010,.Net,Articles,.Net Tutorials,C#,Mobile Development Tutorials,Mobile Developments,Window Phone Tutorials,WP7,WP8

Windows Store Apps: A Guide for WPF and Silverlight Developers

Windows Runtime, or WinRT, is the new Microsoft framework for building Windows Store apps targeting Windows 8. Windows Runtime supports development in C#, Visual Basic .NET and C++ as well as JavaScript. Windows Store apps run on both x86, x64 and Windows RT platforms without modification. These apps can run on both tablets and Windows 8 desktop computers. Windows Store apps can't run on Windows Phone 8, however. You can write apps for Windows 8 and Windows RT that share code and look the same to users on each device because each has a Windows Runtime, a core CLR and similar XAML UI vocabularies; but you still need to build them as two different apps and publish them to two different stores: the Windows Store and the Windows Phone Store. Because of the differences in the APIs, you'll also need to modify and adapt some code—UI design in particular—to the different form factors and resolutions.

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C#,.NET,Architect,Intermediate,VS2010,.Net,Articles,Computer Tutorials,Window Store, Window Store App, WPF, Silverlight

How To Make a Cross-Platform Game with Cocos2D Javascript Tutorial: Getting Started

Did you know you can make a Cocos2D game that runs on the iPhone, Mac, Android, and web all sharing the same exact code?

Don't believe me? Try clicking the screenshot over on the right – it's actually a Cocos2D game!

You can do this with an amazing new Cocos2D technology called Cocos2D Javascript. It allows you to write your gameplay code once, and run it anywhere – with full native speed.

The only problem is this new techology is a bit under-documented at the moment. But never fear – we've got you covered! :]

In this tutorial, you will port the raywenderlich.com classic Ninjas Going Pew-Pew game to Cocos2D-Javascript. I like implementing this game when learning new frameworks because it's simple, but covers the most important aspects of making a game.

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Game Development,iPhone Turorial,Mobile Development Tutorials,Mobile Developments,Javascript,Cross Platform Games, Cocos2d

How to start Node.js ? Tutorials, Videos, Screencasts, Books, Blogs, Podcasts and Resources

Tutorials
Videos
Screencasts
Books
Blogs
Podcasts
JavaScript resources
Node Modules
Other

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Computer Tutorials, Javascript, Server Side Javascript, Node.js, Web development