A webform, web form or HTML form on a web page allows a user to enter data that is sent to a server for processing. Forms can resemble paper or database forms because web users fill out the forms using checkboxes, radio buttons, or text fields. For example, forms can be used to enter shipping or credit card data to order a product, or can be used to retrieve search results from a search engine.
Forms are enclosed in the HTML element. This HTML element specifies the communication endpoint the data entered into the form should be submitted to, and the method of submitting the data, GET or POST.
Forms can be made up of standard graphical user interface elements:
— a simple text box that allows input of a single line of text.
a type of that requires a partially validated email address
a type of that requires a number
— similar to , it is used for security purposes, in which the characters typed in are invisible or replaced by symbols such as *
— a radio button
— a control for uploading a file
— a reset button that, when activated, tells the browser to restore the values of the current form, to their initial values.
— a button that tells the browser to take action on the form (typically to send it to a server)
— much like the input field except a allows for multiple rows of data to be shown and entered
— a drop-down list that displays a list of items a user can select from
The sample image on the right shows most of these elements:
a text box asking for your name
a pair of radio buttons asking you to choose between gender values
a select box giving you a list of eye colors to choose from
a pair of check boxes to click on if they apply to you
a text area to describe your athletic ability
a submit button to send current form values to the server
These basic elements provide the most common graphical user interface (GUI) elements, but not all. For example, there are no equivalents to a tree view or grid view.
This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.
Explores the Lausanne Time Machine initiative, a collaborative project aiming to unify research on the Lausanne region using common standards and technologies.
This course is the second part of a course dedicated to the theoretical and practical bases of Geographic Information Systems (GIS).It offers an introduction to GIS that does not require prior compu
This course is the second part of a course dedicated to the theoretical and practical bases of Geographic Information Systems (GIS).It offers an introduction to GIS that does not require prior compu
Ce cours constitue la seconde partie d'un enseignement consacré aux bases théoriques et pratiques des systèmes d’information géographique. Il propose une introduction aux systèmes d’information géogra
HTML5 (Hypertext Markup Language 5) is a markup language used for structuring and presenting content on the World Wide Web. It is the fifth and final major HTML version that is a World Wide Web Consortium (W3C) recommendation. The current specification is known as the HTML Living Standard. It is maintained by the Web Hypertext Application Technology Working Group (WHATWG), a consortium of the major browser vendors (Apple, Google, Mozilla, and Microsoft).
A webform, web form or HTML form on a web page allows a user to enter data that is sent to a server for processing. Forms can resemble paper or database forms because web users fill out the forms using checkboxes, radio buttons, or text fields. For example, forms can be used to enter shipping or credit card data to order a product, or can be used to retrieve search results from a search engine. Forms are enclosed in the HTML element.
XMLHttpRequest (XHR) is a JavaScript class containing methods to asynchronously transmit HTTP requests from a web browser to a web server. The methods allow a browser-based application to make a fine-grained server call and store the results in XMLHttpRequest's responseText attribute. The XMLHttpRequest class is a component of Ajax programming. Prior to Ajax, an HTML form needed to be completely sent to the server followed by a complete browser page refresh.
Ce cours est une préparation intensive à l'examen d'entrée en 3ème année de Médecine. Les matières enseignées sont la morphologie macroscopique (anatomie) , microscopique (histologie) de la tête, du c
Ce cours présente les principes fondamentaux à l'œuvre dans les organismes vivants. Autant que possible, l'accent est mis sur les contributions de l'Informatique aux progrès des Sciences de la Vie.
This course introduces the foundations of information retrieval, data mining and knowledge bases, which constitute the foundations of today's Web-based distributed information systems.