- Web User Interface Construction [(X)HTML] (X)HTML is short for (eXtensible) HyperText Markup Language, the authoring language used to create documents on the World Wide Web. (X)HTML defines the structure and layout of a web document by using a variety of tags and attributes.
type="checkbox", which lets a user select one or more options of a limited number of choices,type="text", which specifies a single line text entry field within the form that contains it,type="submit", which submits the form when a user clicks the button, andtype="reset", which re-sets all the fields in the form to their initial values when a user clicks the button.
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<html> ... <form method="post" action="http://undcemcs01.und.edu/~wen.chen.hu/cgi-bin/demo/10/ListCourses.cgi"> Students’ names: <input type="checkbox" name="Poke Mon" value="1" checked="checked" /> Poke Mon, <input type="checkbox" name="Sponge Bob" value="1" /> Sponge Bob, <input type="checkbox" name="all" value="1" /> All students, or <input type="text" name="student" value="Mon" size="10" /> <input type="submit" name="act" value="List courses" /> <input type="submit" name="act" value="HTML source" /> <input type="submit" name="act" value="CGI source" /> <input type="submit" name="act" value="Perl source" /> <input type="submit" name="act" value="Java source" /> <input type="submit" name="act" value="SQL source" /> <input type="submit" name="act" value="Help" /> <input type="reset" value="Reset" /> </form> ... </html> |
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HTML forms are used to select different kinds of user input. A form is an area that can contain form elements. Form elements are elements that allow the user to enter information (like text fields, textarea fields, drop-down menus, radio buttons, checkboxes, etc.) in a form.
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Secretary: “Doctor the invisible man has come. He says he has an appointment.” Doctor: “Tell him I can’t see him.” |