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FORMs in HTML

Eastern Mediterranean University School of Computing and Technology Department of Information Technology. ITEC229 Client-Side Internet and Web Programming. FORMs in HTML. CHAPTER 5. Prepared by: R. Kansoy. 5. FORMs in HTML. Used to c ollect information from people viewing your site

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FORMs in HTML

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  1. Eastern Mediterranean University School of Computing and Technology Department of Information Technology ITEC229 Client-Side Internet and Web Programming FORMs in HTML CHAPTER 5 Prepared by: R. Kansoy

  2. 5. FORMs in HTML • Used to collectinformation from people viewing your site • The <FORM> </FORM> tag is used to create an HTML form. • FORM elementAttributes • METHOD attribute indicates the way the Web server willorganize and send you form output. • • METHOD = “post” in a form that causes changes • to serverdata. • • METHOD = “get” in a form that does not cause • any changesin server data. • ACTION attribute • • Path to a script Web server: machine that processes browser requests. http://sct.emu.edu.tr/it/itec229

  3. 5. FORMs in HTML • HTML forms are used to pass data to a server. • A form can contain input elements like; • text fields, • checkboxes, • radiobuttons, • submit buttons • and more.. • A form can also contain • select lists, • textarea, • fieldset, • legend, • and label elements. http://sct.emu.edu.tr/it/itec229

  4. 5. FORMs in HTML • The Input Element • The most important form element is the input element. • An input element can vary in many ways, depending on the type attribute. • An input element can be of type • text, • checkbox, • password, • radio, • submit, • reset • and more.. http://sct.emu.edu.tr/it/itec229

  5. 5. FORMs in HTML • The Input Element • INPUT elementAttributes: • TYPE (required) • – Defines the usage of the INPUT element • – Hidden inputs always have TYPE = “hidden” • NAME provides a unique identification for INPUT element • VALUE indicates the value that the INPUT element sends tothe server upon submission • SIZE • – For TYPE = “text”, specifies the width of the textinput, measured in characters • MAXLENGTH • – For TYPE = “text”, specifies the maximum number ofcharacters that the text input will accept http://sct.emu.edu.tr/it/itec229

  6. 5. FORMs in HTML Text Fields • <input type="text"> defines a one-line input field that a user canenter text into: <form>First name: <input type="text" name="fname" size="25"> <br>Last name: <input type="text" name="lname" size="25"></form> How the HTML code above looks in a browser: Note: The form itself is not visible. Also note that the default width of a text field is 25 characters.  http://sct.emu.edu.tr/it/itec229

  7. 5. FORMs in HTML Password Field • <input type="password"> defines a password field: <form>Password: <input type="password" name="pswd"></form> How the HTML code above looks in a browser: Note: The characters in a password field are masked (shown as asterisks or circles).  http://sct.emu.edu.tr/it/itec229

  8. 5. FORMs in HTML Radio Buttons • Radio buttons let a user select ONLY ONE of a limited number of choices. • <input type="radio"> defines a radio button. • CHECKED attribute indicates which radio button is selectedinitially <form><input type="radio" name="gender" value="male">Male<br><input type="radio" name="gender" value="female">Female</form> How the HTML code above looks in a browser: http://sct.emu.edu.tr/it/itec229

  9. 5. FORMs in HTML Checkboxes • Checkboxes let a user select NONE/ONE/MORE options of a limited number of choices. • <input type="checkbox"> defines a checkbox. • Used individually or in groups • Each checkbox in a group should have same NAME • Make sure that the checkboxes within a group have differentVALUE attribute values • Otherwise, browser will cannot distinguish between them • CHECKED attribute checks boxes initially http://sct.emu.edu.tr/it/itec229

  10. 5. FORMs in HTML Checkboxes <form><input type="checkbox" name="vehicle" value="Bike"> I have a bike<br><input type="checkbox" name="vehicle" value="Car"> I have a car </form> How the HTML code above looks in a browser: http://sct.emu.edu.tr/it/itec229

  11. 5. FORMs in HTML Submit Button • <input type="submit"> defines a submit button. • A submit button is used to send form data to a server. • The data is sent to the page specified in the form's action attribute. • The file defined in the action attribute usually does something with the received input. • VALUE attribute changes the text displayed on the button(default is “Submit”) <form name="input" action="html_form_action.asp" method="get">Username: <input type="text" name="user"><input type="submit" value="Submit"></form> How the HTML code above looks in a browser: NOTE:If you type some characters in the text field above, and click the "Submit" button, the browser will send your input to a page called "html_form_action.asp". The page will show you the received input http://sct.emu.edu.tr/it/itec229

  12. 5. FORMs in HTML Reset Button • <input type= "reset" > defines a resetbutton. • A resetbutton is used to clear all the entries user entered into the form. • VALUE attribute changes the text displayed on the button(default is “Reset”) <form name="input" action="html_form_action.asp" method="get"><P>Username: <input type="text" name="user" size="25"></P> <P>Password: <input type="password" name="pswd" size="25"></P><P><input type="submit" value="Submit"> <input type="reset" value="Reset"></P></form> How the HTML code above looks in a browser: http://sct.emu.edu.tr/it/itec229

  13. 5. FORMs in HTML TEXTAREA • Inserts a scrollable text box into FORM • ROWS and COLS attributes specify the number of character rows and columns <form name="input" action="html_form_action.asp" method="get"><textarea rows="6" cols="36"> ITEC 229 </textarea> </form> How the HTML code above looks in a browser: http://sct.emu.edu.tr/it/itec229

  14. 5. FORMs in HTML SELECT • Places a selectable list of items inside FORM • Include NAME attribute • Add an item to list • Insert an OPTION element in the <SELECT>…</SELECT>tags • Closing OPTION tag optional • SELECTED attribute applies a default selection to list • Change the number of list options visible • Including the SIZE = “x” attribute inside the <SELECT>tag • x number of options visible http://sct.emu.edu.tr/it/itec229

  15. 5. FORMs in HTML SELECT <form action=""> <select name="cars"> <option selected>BMW</option> <option>Mercedes</option> <option>Audi</option> </select> </form> How the HTML code above looks in a browser: http://sct.emu.edu.tr/it/itec229

  16. 5. FORMs in HTML EXAMPLE 1: <HTML> <HEAD><TITLE> Forms</TITLE></HEAD> <BODY> <H2>Feedback Form</H2> <P>Please fill out this form to help us improve our site.</P> <FORM METHOD = "POST" ACTION = "/cgi-bin/formmail"> <INPUT TYPE = "hidden" NAME = "recipient"VALUE = "deitel@deitel.com"> <INPUT TYPE = "hidden" NAME = "subject"VALUE = "Feedback Form"> <INPUT TYPE = "hidden" NAME = "redirect"VALUE = "main.html"> <P><STRONG>Name: </STRONG> <INPUT NAME = "name" TYPE = "text" SIZE = "25"></P> <P><STRONG>Comments:</STRONG> <TEXTAREA NAME = "comments" ROWS = "4" COLS = "36"></TEXTAREA> </P> http://sct.emu.edu.tr/it/itec229

  17. 5. FORMs in HTML EXAMPLE 1 (cont..) : <P><STRONG>Email Address:</STRONG> <INPUT NAME = "email" TYPE = "text" SIZE = "25"></P> <P><STRONG>Things you liked:</STRONG><BR> Site design<INPUT NAME="things" TYPE="checkbox" VALUE="Design"> Links<INPUT NAME="things" TYPE="checkbox" VALUE="Links"> Ease of use<INPUT NAME="things" TYPE="checkbox" VALUE="Ease"> Images<INPUT NAME="things" TYPE="checkbox" VALUE="Images"> Source code<INPUT NAME="things" TYPE="checkbox" VALUE="Code"> </P> <INPUT TYPE="submit" VALUE="Submit Your Entries"> <INPUT TYPE="reset" VALUE="Clear Your Entries"> </FORM> </BODY> </HTML> http://sct.emu.edu.tr/it/itec229

  18. 5. FORMs in HTML EXAMPLE 1 (output): http://sct.emu.edu.tr/it/itec229

  19. 5. FORMs in HTML EXAMPLE 2: <HTML> <HEAD><TITLE> Forms II</TITLE></HEAD> <BODY> <H2>Feedback Form</H2> <P>Please fill out this form to help us improve our site.</P> <FORM METHOD = "POST" ACTION = "/cgi-bin/formmail"> <INPUT TYPE = "hidden" NAME = "recipient"VALUE = "deitel@deitel.com"> <INPUT TYPE = "hidden" NAME = "subject"VALUE = "Feedback Form"> <INPUT TYPE = "hidden" NAME = "redirect"VALUE = "main.html"> <P><STRONG>Name: </STRONG> <INPUT NAME = "name" TYPE = "text" SIZE = "25"></P> <P><STRONG>Comments:</STRONG> <TEXTAREA NAME = "comments" ROWS = "4" COLS = "36"></TEXTAREA> </P> <P><STRONG>Email Address:</STRONG> <INPUT NAME = "email" TYPE = "password" SIZE = "25"></P> http://sct.emu.edu.tr/it/itec229

  20. 5. FORMs in HTML EXAMPLE 2 (cont..): <P><STRONG>Things you liked:</STRONG><BR> Site design<INPUT NAME="things" TYPE="checkbox" VALUE="Design"> Links<INPUT NAME="things" TYPE="checkbox" VALUE="Links"> Ease of use<INPUT NAME="things" TYPE="checkbox" VALUE="Ease"> Images<INPUT NAME="things" TYPE="checkbox" VALUE="Images"> Source code<INPUT NAME="things" TYPE="checkbox" VALUE="Code"></P> <P><STRONG>How did you get to our site?:</STRONG><BR> Search engine <INPUT NAME="how get to site" TYPE="radio"VALUE="search engine" CHECKED> Links from another site <INPUT NAME="how get to site"TYPE="radio"VALUE="link"> Deitel.com Web site <INPUT NAME="how get to site" TYPE="radio"VALUE="deitel.com"> Reference in a book <INPUT NAME="how get to site" TYPE="radio"VALUE="book"> Other <INPUT NAME="how get to site" TYPE="radio"VALUE="other"></P> http://sct.emu.edu.tr/it/itec229

  21. 5. FORMs in HTML EXAMPLE 2 (cont..): <P><STRONG>Rate our site (1-10):</STRONG> <SELECT NAME = "rating"> <OPTION SELECTED>Amazing:-) <OPTION>10 <OPTION>9 <OPTION>8 <OPTION>7 <OPTION>6 <OPTION>5 <OPTION>4 <OPTION>3 <OPTION>2 <OPTION>1 <OPTION>The Pits:-( </SELECT></P> <INPUT TYPE = "submit" VALUE = "Submit Your Entries"> <INPUT TYPE = "reset" VALUE = "Clear Your Entries"> </FORM> </BODY> </HTML> http://sct.emu.edu.tr/it/itec229

  22. 5. FORMs in HTML EXAMPLE 2 (output): http://sct.emu.edu.tr/it/itec229

  23. Thank You ! FORMs in HTML http://sct.emu.edu.tr/it/itec229 END of CHAPTER 5

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