Assignment 5 - Control Structures, Functions, the Response Object

The information needed to complete this assignment is covered in M&A chapters 4 and 5, except the use of forms, which was covered in class (and is covered in M&A chapters 8 and 9). I suggest that you have your copy of M&A available as a reference while you work on your labs. Name your scripts with the file names used in the examples.

1. ForNext.asp -- Write a script that loops a number of times specified by the user. Your output should look like the sample.

2. ForNextTable.asp -- It is frequently useful to write output into a table.  Modify the previous exercise to write your script output to a table. Your output should look like the sample: 

3. ForNextNested.asp -- Let's add some columns to our table.  Modify the previous exercise to write a table with multiple rows and columns. Write the row and column number in each cell.  Your output should look like the sample.

Tip: Modify the previous exercise by nesting a For Next "column" loop inside the existing "row" loop. The nested loop will produce the table columns.

4. ValidInput.asp -- Our web users can cause an error in any of the previous scripts simply by entering a non-numeric value.  We can prevent that by using a VBScript function to check that the data is numeric.  Modify exercise 2 with an If Then statement that uses the IsNumeric function to check for numeric data. The IsNumeric function returns "true" if the data is numeric and "false" otherwise.  The If Then statement that you will need to add is:

If IsNumeric(strRow) then
    code block
else
    code block
End If

Your output should look like the sample.

5. SalesCalc.asp -- Write a script that computes the sales information shown in the example. Validate the form input data as in the previous exercise.  Do not show the calculations until input has been received from the form. Your output should look like the sample.

6. HiddenTally.asp -- Modify CookieTally.asp to use a hidden form field instead of a cookie to store the current tally. 

Tip: The previous tally and the user's last input need to be added together before the hidden field is written. To do this, add some VBScript above the <form> tag to retrieve the data from the user's input and the current tally. Assign these values to to local variables as you did for the cookie tally last week. The syntax for storing ASP data in a hidden form field is:

<input type="hidden" name="strTally" value="<% =dblTally + dblInput %>" >

where dblTally and dblInput are local variables. The hidden field may be written anywhere inside the <form> </form> tags.

You may find it useful to look at the source code in the example - you can see the hidden field inside the form. Also take note of the two values being passed in the querystring: strInput and strTally.

7. FontPicker.asp -- Modify the FunkyFont.asp example from class to use five additional fonts. Here is the source (view source) code for the FunkyFont example.  Steps:

• All the images are stored in Professor. Sandvig's account and may be referenced directly from there. The common portion of each path is: 
  "<img src='http://yorktown.cbe.wwu.edu/sandvig/images/alphabet/"
  Tip: You may wish to put the common part of the path into a variable so that you don't have to repeat it many times within your code.

• Each font/color combination is stored in a separate folder and uses a slightly different naming convention. The directory / naming convention for each font is (where x is the character desired).

• Add radio buttons that allow the user to select one of the six fonts.

• Use a select case statement (documentation) or an If...then...elseif statement to check the input from the radio buttons and select the appropriate font.

• Replace spaces in the message with <br> tags.

• Optional: to insert line spaces into your HTML source code (for appearance purposes)  concatenate the VBScrit vbcrlf statement into your output.