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Using LINQ Visual Basic Aggregate Functions with ASP.NET 3.5

ASP.NET 3.5 in tandem with LINQ makes writing queries for your Web site a snap — or at least pretty easy. One of the most-used queries is Aggregate, which helps you find any or all of the queried terms [more…]

ASP.NET 3.5 For Dummies Cheat Sheet

Creating dynamic Web sites is why you use ASP.NET 3.5. It can help you to create a reunion Web site for multiple users or to expand your business site to enable online shopping. And when you integrate [more…]

Windows PowerShell 2 For Dummies Cheat Sheet

With the Windows PowerShell 2 scripting language, you can automate your Windows operating system. During that process, you may need to deal with automatic variables, comparison operators, COM and .NET [more…]

Code to Use in JavaScript Variable Manipulation Functions

As shown in the following table, you can use these JavaScript statements in your own code to create and modify variables in your JavaScript functions. [more…]

Basic I/O Commands in JavaScript

JavaScript programmers commonly use the commands shown in the following table for controlling dialog-based input and output in programs to be used on the Web. [more…]

JavaScript Conditions and Branching Code Structures

Look to the following table for JavaScript control structures you can use in your program code to add branching and looping behavior to your JavaScript programs. [more…]

Add JavaScript Comparison Operators to Condition Statements

JavaScript uses comparison operators inside conditions to make numeric or alphabetical comparisons of variables to other variables or values. Using these operators, you can determine whether a variable [more…]

Create JavaScript Structures and Objects

JavaScript allows you to put together code lines to create functions and variables to create arrays. You can put functions and variables together to create objects. [more…]

Common Methods of the jQuery Node

The jQuery library turns DOM objects into powerful jQuery nodes. The following table shows a few of the more commonly used methods of the jQuery node. [more…]

jQuery Selectors and Filters

Part of jQuery’s power is based on its ability to select particular sections of the page. This table includes several commonly used selectors and filters. [more…]

Add jQuery User Interface Classes to Theme Styles

These CSS classes are defined in a jQuery UI theme. If you’re using jQuery UI, you can add any of these classes to your objects to add the theme styles. [more…]

jQuery Methods for Sending an AJAX Request

As you can see from studying the following table, jQuery supplies several methods for sending an AJAX request to the server and parsing the results. [more…]

Use PHP Statements to Create Programs

PHP programs are a series of PHP statements, executed one at a time. Here’s a list of the PHP statements (with syntax) that you use when writing PHP programs: [more…]

Communicate with a Database through PHP MySQL Functions

PHP communicates with MySQL databases by using a set of functions developed specifically for this purpose. This list shows the syntax of these frequently used functions. [more…]

Access and Adapt a Database with MySQL Queries

PHP communicates with MySQL databases by sending SQL queries. Here’s a list of SQL queries, with their syntax, that you can use to access, view, and alter the database: [more…]

Knowing the MySQL WHERE Clause Format

The WHERE clause is used to modify a DELETE, SELECT, or UPDATE SQLquery. This list shows the format you can use when writing a WHERE clause: [more…]

Make MySQL Database Changes with the ALTER Query

The ALTER query is used to change the structure of a MySQL database. This list shows the syntax for the changes you are most likely to want to make: [more…]

Special Characters to Use in PHP Expression Test Patterns

Regular PHP expressions use patterns to test whether the input users submit when using online forms are in the correct format. This table shows characters you can use in patterns. [more…]

PHP & MySQL For Dummies Cheat Sheet

When writing PHP programs to create your Web database application and communicate with a MySQL database, you have many things to remember. You must spell code correctly and use perfect syntax. This Cheat [more…]

Ruby on Rails Keywords

If you’re using Ruby on Rails to create your Web site or database, you need to know the keywords Ruby uses. Fortunately, you have access to the following table, which lists Ruby’s keywords: [more…]

Naming Conventions for Ruby on Rails

You’re using Ruby on Rails to create a Web application or Web database app, which is very smart of you. Depending on what you’re working with — an application, a one-to-many relationship, or a many-to-many [more…]

Ruby on Rails Validation Helpers

When you create a Web site or Web application with Ruby on Rails, you need to make sure that you input data in a form that Rails recognizes and can use. The following table contains Rails validation helpers [more…]

Useful Iterators and Methods for Ruby on Rails

When you want to travel through the items in a database you created with Ruby on Rails, knowing the iterators to use is key. The following table shows helpful iterators and methods: [more…]

Shortcut Keys for the Visual Basic .NET Editor

Visual Basic .NET not only helps you program like a pro even if you have no programming experience at all, it offers many handy tools to help. One of those tools is a whole range of shortcut keys you can [more…]

Visual Basic .NET Data Types

Visual Basic .NET (VB .NET) lets you get right to the basics without having to wade through translators. The following table shows you the data types VB .NET uses, as well as their CLR structure, storage [more…]

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