Latest Screencasts (page 3)

Usually a select menu is used for setting a belongs_to association, but in this episode I will show you how to use a text field with auto completion.

In AJAX Essential Training, instructor Dori Smith shows experienced web developers how to utilize AJAX to best create dynamic pages. The course covers selecting the best tools for the job (HTML, CSS, JavaScript, XML), understanding all aspects of HTTP from requests to responses, and creating dynamic forms and maps from...

See how to dynamically change a select menu based on another select menu using Javascript. In this episode everything is kept client side which leads to a more responsive user interface.

In this third and final episode on complex forms I will show you how to edit a project and multiple tasks all in one form. This includes removing and adding tasks dynamically as well. See the show notes for updated code.

See how to use Javascript and RJS to add and remove form fields dynamically. This episode will build upon the previous episode allowing you to create any number of tasks in one form the same time a project is created.

Complex forms often lead to complex controllers, but that doesn't have to be the case. In this episode see how you can create multiple models through a single form while keeping the controller clean.

Let's say you provide a select menu for setting which category a given product belongs to, but you also want the option of creating a new category by typing the name in a text field. See a great way to do that in this episode.

See how to select multiple items using checkboxes and perform an action on the selected items in this episode.

This episode will walk you through adding AJAX functionality to a form using RJS. See how to easily update multiple elements on a page.

When a validation error occurs, Rails helpfully wraps the field in a div tag so you can style it. But sometimes you don't want this behavior. In this episode you will see how to customize it.