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Transcript

  • 1. Front-End Web Development Lesson 15 Form Basics
  • 2. Agenda ● ● ● ● ● Review Form tags Input tags Attributes Other Form Tags ○ select, option, labels, textarea, fieldset, legend ● Form Validation ● Lab
  • 3. Forms How we get data from users … BEWD begins March 4 Apply Now ...
  • 4. Forms A form is a wrapper for data collection elements. ● text fields ● drop down lists ● radio buttons ● check boxes ● etc.
  • 5. Forms The form wrapper tells the page ... ● where to send the data ● how to send the data ● what data is being sent
  • 6. Form Tag <form></form> Available attributes: ● method | get or post ● action | url to send data to ● enctype | used only with post method
  • 7. Form Tag Example: <form action="register.php" method="post" enctype="multipart/form-data"> <!--Data collection elements go here--> </form>
  • 8. Input Tags <input> tags placed inside <form> tags “type” attribute identifies different types of data content
  • 9. Input Tags Commons types: <input type=“text”> <input type=“radio”> <input type=“checkbox”> <input type=“submit”> Other types
  • 10. Code Along Let’s start building something. Introduce <form> and <input> types: text, radio, checkbox, submit
  • 11. Input Tags Other attributes besides “type”: ● name | used server side ● value | used server side & button text ● placeholder | default text ● ids and classes | CSS properties Other attributes
  • 12. HTML5 Form Attributes New attributes added to the <form> tag and to the <input> tag Details at w3schools.
  • 13. Code Along Let’s continue building something. Introduce other attributes: name, value, placeholder, ids, classes
  • 14. Select and Option <select> <option value=1>One</option> <option value=2>Two</option> <option value=3>Three</option> </select> Details
  • 15. Labels <label for=“name”>Name</label> <input type=“text” id=“name”> Details
  • 16. Textarea <textarea rows=”4” cols=”50”></textarea> Details
  • 17. Code Along Let’s continue building something. Introduce other form tags: select, option, label, textarea
  • 18. Fieldsets and Legends <fieldset> <legend>Legend</legend> stuff goes here </fieldset> Details
  • 19. CSS Positioning and Styling Apply CSS positioning (floats) and styling like you would with all other HTML tags
  • 20. Code Along Let’s continue building something. Introduce other form tags and styling: fieldset, legend, CSS
  • 21. Form Validation Search jquery.com plugins for “form validation” Other options: Parsley.js jQuery Validation Plugin Made Easy Tutorial
  • 22. Lab Build GA Application Form
  • 23. Homework Incorporate a form into your project