R is a important programming for data analysis. I provide notes and how-to for working with directories and files.
Discover the different technologies that provide push notification services to browsers like WebSockets and Comet. However there many more more mature protocols using TCP and HTTP.
Learn how to use the HTML5 cross document API. This tutorial provides the complete code for a simple and easy example.
Create custom UIControls using this tutorial for iOS apps using custom graphics, the UIKit and the Foundation classes. It is easy and requires very little code to create fully animated custom controls for iOS apps.
A critical component of any iOS application with a database is implementing a backup strategy. This how-to article provides many options for backing up a SQLite database, which is the standard database choice for iOS...
Learn how to perform SQLite database searches using the UISearchBar UIControl in the iOS 6 SDK. Complete code is provided.
How to create a function module to query the KNVV table using ABAP SQL.
Create beautiful custom control radio buttons and checkboxes for your iOS (iPhone, iPad) applications. Follow this simple tutorial to create radio buttons and checkboxes that fit the style of your app and requires very...
Open any PDF directly in an iOS application for reading. This simple sample iOS iPhone app provides the code and detailed instructions.
Use this guide to locate an iOS app's sandbox on a Mac. This guide also provides an overview of an iOS app file structure.
Learn to create PDF documents using the APIs in the iOS UIKit. Use the UIGraphicsBeginPDFContextToFile and the UIGraphicsBeginPDFContextToData to quickly create and save PDF files with this sample iOS iPhone app.
Step forwards and backwards though data in SQLite database. Learn how to browse data in a SQLite database using this iPhone app which uses a UITextField and an UITextView to capture and display data to and from the...
This sample code and example iPhone app demonstrates a solution to remove the blinking cursor from an UITextField in an iOS app. This is handy as the app demonstrates to use with an UIDatePicker to allow a user to...
Learn how to store binary data like image in a SQLite database from an iPhone iOS app. You will also learn how to convert the uiimage to binary data for storage and retrieval in an UIImageView using an UIPickerView as a...
Use this handy guide to prepare your Android app as a signed apk archive that is required to publish your app to the Google Play store. This guide also provides the steps needed to publish the Android app in the Google...
Learn how easy it is to develop Android App with SQLite using Adobe Flash Builder and Flex. Adobe's Flash APIs have native support for SQLite making developing Android apps easy. Using Adobe Air and the ADT in Flash...
Sitting postures to avoid back pain while sitting at a computer workstation or desk starts with an office ergonomic chair. Choosing the right office chair to lower pain is key to good posture for computer use. Lower...
Easy examples on string format specifiers in iOS NSString objective-c programming. Add values of different data types to strings using c code that conforms to IEEE c printf. Examples for all supported string formaters...
How to make an iOS app using Flash. Learn to make Flash Builder apps for Flash iOS development. With Flash app development, you can create iOS apps for App Store. Adobe Air will convert to native iOS code for great...
run WMI queries and process or another DOS or Windows process from SQL Server using the SQL xp_cmdshell function. This tutorial walks you through how to setup xp_cmdshell on the server and execute differenttype sof...
iOS UIPickerView is a versatile UI control in the UIKit of the Cocoa Touch Framework. Learn how to create single and multi-column UIPickerViews with this tutorial.
Being an iPhone app creator is not only open to programmers, but also to marketers, web designers and other professionals in the creative arts. This guide explores the different options and provides the tools to help...
List of online stores where you can get apps for iPhone and how to installed them on an iPhone
Use the CommandLine, VBScript or JScript to export a Windows Registry or keys
A free and complete software development proposal template with budget, ROI and CAGR formulas and instructions. Detailed instructions to help you prepare a winning software development proposal.
Reduce Excel file size using this techniques like file compression, data management, switching to a binary format.
This tutorial provides all the steps to manually add Core Data to an existing application or to an iOS application, like a Single View Application, without using a pre-existing Core Data template. This tutorial assume...
Learn how to store UIImage (image) data in Core Data using this tutorial.
Develop a SplitViewController iPad in Xcode 4.3.2 and iOS 5.1. This tutorial provides complete instructions.
Develop 2d and 3d graphics using the GLkit and the open GL ES frameworks. This tutorial provides a great introduction on GLKBaseEffect, GLKSkyBoxEffect, GLKTextureLoader and how to setup a basic animation in iOS.
The CoreImage Framework was introduced to the iOS SDK with version 5 although it has been available on Mac OSX for a few versions already. This tutorial demonstrates how to take a photo and apply filtering to create a...
Create AVPlayer applications for iPAD that uses AirPlay. This tutorial provides complete instructions
iOS Property List files, or plist files, are a great way to store data and to use them to store config setting specific to your app or even to use them instead of global variables. This tutorial teaches you how to...
iOS SQLite Database for iPhone and iPad is a tutorial demonstrating how to Insert, Update, Delete, Select (CRUD) data from a UIViewController into a SQLite database in an iPhone or iPad application. Display data from...
This tutorial demonstrates how to display data in a detail view controller for an iOS app, based on the selection in the UITableView.
iOS, what is the best ways the make data globally available? One possible solution is to use a Singleton as this tutorial demonstrates. Using a Singleton to pass data between multiple view controllers and other objects...
With iOS 5 and ARC, the #define keyword is frown upon and creates linkage issues with the compiler. You still can create Global Variables, but without the #define macro. This tutorial shows you how.
The IOS 5 UIAlertView is a versatile popover that offers several styles. Logins, Prompts, Text Messages. This tutorial offers several examples on how to implement the UIAlertView for iPad and iPhone or iPod Touch.
IOS, send data from one View Controller (scene) to another View Controller (scene) using a segue and the prepareForSegue. This is a simple tutorial with clear steps.
This is a tutorial on how to implement an incrementing or decrementing counting as forward or back buttons to retrieve values from an Array using Objective-C and display the values in a label on a View Controller in an...
This is a tutorial to demonstrate how to dismiss the contextual keyboard that displays when a user enters a UITextField. This tutorial demonstrates how to make the keyboard dismiss when a field loses focus, or when a...
This Storyboard Connections tutorial provides insight on how to create connection in a Storyboard, set delegates, add code to interact with the different objects. It is designed for new programmers or at least...
Select and display data from a SQLite database in iOS Cocoa Touch UITableView. Complete source code included.
SQLite is a great technology for data storage and persistence for mobile applications and web applications. Although not a database server, it offers nevertheless the possibility to group several databases together, for...
The Conditional or ternary operator is an effective means to test a boolean expression in an inline setting and assign a value to a variable. This tutorial demonstrates how to use this often overlooked and misunderstood...
Objective-C if examples. If expressions in Objective-C work the same as in C or any other language. This tutorial is a good mix between theory and complete code examples. It also show how to create objects and methods...
Objective-C instance variables and constant. In addition to the types, C variables and constants, Objective-C also adds instance variables. This tutorial offers a comprehensive review of how to use instance variables...
Variables, constants and their types are some of the main building blocks in programming. This tutorial covers variables in C in regards to Objective-C. This is a second installment in a complete course on C and...
It is easy to create standalone application using C# or even VB.Net. This tutorial provides the step by step instructions on how to create your own.
There are several ways to use Objective-C to read, write and create files and directories. This tutorial presents one way, which is adapted for the IOS 5 SDK.
(c) klanguedoc 2010. iOS SQLite Database is a tutorial that demonstrates how to create an iOS iPhone and iPad applications with a SQLite database.
This tutorial demonstrates how to create navigation between scenes with segues.
This tutorial demonstrates how to make a silent connection using VBA (or Visual Basic), either from an Excel worksheet or VB client. The tutorial uses the BAPI Control and SAP Logon Control, both of which, are included...
This is a tutorial on using the SAP .Net Connector, NCO 126.96.36.199 for .Net 4 and Visual Studio 2010.
List of 27 Offline (Standalone) Web and Native Application Databases | Google Chrome | Apple Safari | Mozilla Firefox
This is a reference of most of the free and or open source databases that can be used for mobile and web applications that require to be operated offline.
This is a tutorial on how to use Actionscript to query Yahoo Finance.
This a tutorial on creating Excel CustomUI controls for the RibbonX UI element.
An overview of Microsoft's WebMatrix HTML editor. Great tool for creating offline (web database ) web applications.
Over 22 free and open source development frameworks and other software tools to create mobile apps for most major smartphone and tablet devices and platforms.
The tutorial demonstrates how to create an ios app for iPhones or iPad using the PhoneGap platform and a HTML editor like Amaya (any other can be used as well). What is amazing is that entire app was created without...
How-to create (program or develop) a copy and paste functionality in the DataGrid
This tutorials demonstrates a very easy and effective method of manipulating data in a Adobe Flex DataGrid using XML and e4x in an ArrayCollection.
This is a how-to article to demonstrate the html5 api to access files on a computer through a browser.
Creating a servlet is very simple, once you know the mechanics. Just like a Java Servlet is just a bunch of methods to handle HTTPRequests and HTTPResponses so is the Generic Handler class in Microsoft (dot)...
Since getItemIndex doesn't return a match lookup value,instead always returns -1, this solution is a great workaround, even on long lists
SQL Server offers many different technologies for system integration. This tutorial demonstrates how to link an Excel 2007 file with SQL Server 2008.
Opendatasource provides the means to create adhoc connections. It uses a linked server object. You can access server locally or remotely. You can add the same kind of parameters as a linked server object including...
For this next set of examples, I am going to use OPENROWSET to update my Excel file with data from SQL Server 2008. Before I get to the examples I am going to modify the Music table that I initial created in the...
The Transact-SQL language has many far fetched functions and commands, lie cmdshell. The cmdshell function allows you to execute DOS command on the CLI from T-SQL. This tutorial show how to use cmdshell to execute DOS...
How to Develop an Excel App using the VSTO Interop services (com) and C#. This hub also demonstrates how to add a ribbon and interact with the app from the ribbon.
This article demonstrates how to use C# to interact with the different sheets and workbook in an Excel 2007 application.
Tutorial and example on how to use the Merge function in Transact-SQL to perform inserts and updates.
Transact-SQL boast many specialized stored procedures, enabling the developer or administrator to interface with every part of the Microsoft platform. This tutorial presents some example on how -to use vbscript to...
The documentation on FluorineFX site is geared towards VS2005. FluorineFX doesn't behave the same way with VS2008. This article shows you how.
This articles provides examples on how to use the pivot function in t-sql, dynamic sql and xml to create dynamic (programmatic) columns in a cross tab or pivot query similar to olap.