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CS-3432 Electronic Commerce

CS-3432 Electronic Commerce. Lecture – 8 Sikandar Shujah Toor https://sites.google.com/site/uolcsecom. Quiz – 1 30 mins 20 mark. Define e-commerce and its classes What is www? How an http connections is treated in www per transaction? Define and explain OSI network model

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CS-3432 Electronic Commerce

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  1. CS-3432Electronic Commerce Lecture – 8 SikandarShujahToor https://sites.google.com/site/uolcsecom

  2. Quiz – 1 30 mins 20 mark • Define e-commerce and its classes • What is www? How an http connections is treated in www per transaction? • Define and explain OSI network model • What is a network topology? How many types of topologies are commonly used ?

  3. Forms • A form is a web page populated with the form controls such as text boxes, drop-down lists, combo boxes, radio buttons, check boxes and commands buttons to get information from the user • <form> and </form> • <Form action=http://www.uol.edu.pk/contact.html Method=get> • “action” attribute specifies where to send the form data when the form is submitted • Method attribute specifies how to send form data to the page specified in action attribute • Two ways to send form data • get – appends the form data into url in name/value pair • not recommended for sensitive data • post – appends the data inside the body of the http request

  4. Forms Controls • Types • Submit/Reset button • Text boxes • Text area • Check boxes • Radio buttons • Lists, etc., etc

  5. Post and Get Methods • <HTML> • <HEAD> • <TITLE>Post and Get Methods</TITLE> • </HEAD> • <BODY> • <H3>An Example of Post and Get methods</H3> • <FORM ACTION="http://www.uol.edu.pk/contact.html" METHOD=“GET"> • User Id:&nbsp;&nbsp;&nbsp;&nbsp;<input type="text" name="uid"> • <p>Password:&nbsp;<input type="password" name="pwd"></p> • <p><INPUT TYPE="SUBMIT" VALUE=Send-Form></p> • </FORM> • </BODY> • </HTML>

  6. Get Method

  7. Example -Submit <HTML> <HEAD> <TITLE>Submit Button</TITLE> </HEAD> <BODY> <H3>An example of Submit button:</H3> <FORM ACTION="http://www.uol.edu.pk/contact.html" METHOD="POST"> <INPUT TYPE="SUBMIT" VALUE=Send!> </FORM> </BODY> </HTML>

  8. Submit Button

  9. Example – Text Box & Text Area <HTML> <HEAD> <TITLE>Text Area Example</TITLE> </HEAD> <BODY> <H3>Today's Burning Question</H3> <FORM ACTION="http://www.gov.pk/scritps/test.asp" METHOD="POST"> First Name: <INPUT TYPE="TEXT" NAME="First"> <P> Last Name: <INPUT TYPE="TEXT" NAME="Last"> <P> Today's <I>Burning Question</I>: <B>How to make Pakistan a developed country?</B> <P> Please enter your answer in the text area below: <BR> <TEXTAREA NAME="Answer" ROWS="10" COLS="60"> </TEXTAREA> <P> <INPUT TYPE="SUBMIT" VALUE="I Know!"> <INPUT TYPE="RESET"> </FORM> </BODY> </HTML>

  10. Text Boxes & Text Areas

  11. Text boxes - Attributes • <input type=text Name=“URL” Value=http://> • <Input type=text Name=“address” size=“40”> • <input type=text Name=“age” maxlength=“3”>

  12. Example – Checkbox <HTML> <HEAD> <TITLE>CheckBox Example</TITLE> </HEAD> <BODY> <H3>Describe Your Phobia!</H3> <FORM ACTION=http://www.sad.com/scripts/formtest.asp METHOD="POST"> What is <I>your</I> phobia? (Please check all that apply): <P> <INPUT TYPE="CHECKBOX" NAME=“Water">Fear of water<BR> <INPUT TYPE="CHECKBOX" NAME="Bald">Fear of becoming bald<BR> <INPUT TYPE="CHECKBOX" NAME=“Lock”>Fear of being locked inside<BR> <INPUT TYPE="CHECKBOX" NAME="Flying" Checked >Fear of flying<BR> <P> <INPUT TYPE="SUBMIT" VALUE="Submit"> <INPUT TYPE="RESET"> </FORM> </BODY> </HTML>

  13. Example – Checkbox

  14. Example – Radio button <HTML> <HEAD> <TITLE>Radio Button Example</TITLE> </HEAD> <BODY> <H3>Survey</H3> <FORM ACTION="http://www.sad.com/scripts/formtest.asp" METHOD="POST"> Which of the following best describes your current income level:<BR><BR> <INPUT TYPE="RADIO" NAME=“Income" VALUE="Poverty">living below the poverty line<BR> <INPUT TYPE="RADIO" NAME=“Income" VALUE=“Middle” Checked>living at the level of middle class<BR> <INPUT TYPE="RADIO" NAME=“Income" VALUE=“Upper">living at the level of upper class<BR><BR> Which of the following best describes your political inclination:<BR><BR> <INPUT TYPE="RADIO" NAME="Politics" VALUE=“Nationalist" CHECKED>Worker of Nationalist Party<BR> <INPUT TYPE="RADIO" NAME="Politics" VALUE=“Socialist">Member of Socialist Party<BR> <INPUT TYPE="RADIO" NAME="Politics" VALUE=“Republican">Supporter of Republican Party<BR> <INPUT TYPE="RADIO" NAME="Politics" VALUE=“None">None of the above<BR> <P> <INPUT TYPE="SUBMIT" VALUE="Submit"> <INPUT TYPE="RESET"> </FORM> </BODY> </HTML>

  15. Example – Radio buttons

  16. Example - Lists <HTML><BODY> <FORM ACTION="http://www.sad.com/scripts/formtest.asp" METHOD="POST"> Select your nationality:<P> <SELECT NAME=“Nationality" SIZE="4"> <OPTION>American</OPTION> <OPTION>Australian</OPTION> <OPTION>Hungarian</OPTION> <OPTION>Indian</OPTION> <OPTION>Iranian</OPTION> <OPTION SELECTED>Pakistani</OPTION> <OPTION>French</OPTION> </SELECT><P> Select your favorite city:<P> <SELECT NAME="City"> <OPTION>Sydney</OPTION> <OPTION>London</OPTION> <OPTION SELECTED>Lahore</OPTION> </SELECT><P> Countries visited last year:<P> <SELECT NAME=“Countries" SIZE="5" MULTIPLE> <OPTION>Canada</OPTION> <OPTION>Russia</OPTION> <OPTION>England</OPTION> <OPTION>Egypt</OPTION> <OPTION>Saudi Arabia</OPTION> </SELECT> </BODY></HTML>

  17. Example - Lists

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