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IT 130 -- Examples

XHTML and CSS Review

Example 1 vanilla-xhtml.htm Source Code
A vanilla XHTML page, including the following:
title, heading, paragraph, ordered list, table, image, hyperlink.
Example 2 styled-xhtml.htm Source Code
Example 1, but using a document-level CSS style.
Example 3 external-xhtml.htm Source Code
Example 1, but using an external CSS style page.

ASP.Net Intro

Example 4 showtime.aspx Source Code
Show current time on an .aspx page. The time is obtained from a function call delimited by <%= and %>.
Example 5 clickcounter1.htm Source Code
Count button clicks using a JavaScript event handler. The examples.css style sheet is used.
Example 6 clickcounter2.aspx Source Code
Count button clicks using a C# event handler. The C# code is located in the .aspx file.
Example 7 clickcounter3.aspx Source Code
Count button clicks using a C# event handler. The C# code is located in the code-behind file file with extension .aspx.cs.

C# Classes and Objects

Example 8 greeter1.aspx Source Code
Take a name from a textbox and construct a greeting using that name, which is displayed in another textbox.
Example 9 greeter2.aspx Source Code
Take a name from a textbox and construct a greeting using that name, which is displayed directly on the document.
Example 10 datetime.aspx Source Code
Object the current date from a DateTime object using the Now property. Show how to use other properties and methods from this object.
Example 11 random-numbers.aspx Source Code
Compute a random double and random integers obtained from a Random object. Use properties and methods from this object.

C# Structured Programming

Example 12 temperature-descriptors1.aspx Source Code
Use an if-else statement to determine a descriptor, given a Fahrenheit temperature.
Example 13 temperature-descriptors2.aspx Source Code
Use an if-else statement to determine a descriptor, given a Fahrenheit temperature. Use int.TryParse in case the input is not a legal number.
Example 14 overtime.aspx Source Code
Compute total wages, given hours worked and hourly rate. Overtime is paid at time and a half.
Example 15 chinese-zodiac1.aspx Source Code
Given the year of birth, determine the corresponding Chinese zodiac animal.
Example 15.5 consultant-bs-generator1.aspx Source Code
Given the year of birth, determine the corresponding Chinese zodiac animal.
Example 16 long-song.aspx Source Code
Display all verses of 999 Bottles of Beer on the Wall, using a while loop.
Example 17 flintstones.aspx Source Code
Display a random member of the Flintstones TV show.

C# Arrays

Example 18 arrays.aspx Source Code
Show how to use C# arrays, including some useful properties.
Example 19 chinese-zodiac2.aspx Source Code
Use an array to simplify the chinese-zodiac1.aspx Example (Example 14).
Example 20 consultant-bs-generator2.aspx Source Code
Use an array to simplify the consultant-bs-generator1.aspx Example (Example 15).
Example 21 temperature-descriptors3.aspx Source Code
Use two arrays to simplify the temperature-descriptors3-src.htm (Example 12).
Example 21.5 arraylist.aspx Source Code
Declare, instantiate, and populate an ArrayList object. Then sort the arraylist and display its contents.

ASP.Net Web Controls

Example 22 us-president-quiz1.aspx Source Code
Display a multiple choice quiz using radio buttons.
Example 23 us-president-quiz2.aspx Source Code
Display a multiple choice quiz using radio buttons.
Show the total correct when any radio button is checked.
Example 24 us-president-quiz3.aspx Source Code
Display a multiple choice quiz using RadioButtonList server controls.
Show the total correct when any radio button is checked.
Example 25 airports.aspx Source Code
Select an airport from a dropdown list.
Example 26 beverage.aspx Source Code
Display a multiple choice quiz using RadioButtonList server controls.
Order your breakfast drink online. Only cold orange juice is allowed.
Example 27 voting-machine.aspx Source Code
Record and display votes for two candidates.
Example 28 calendar1.aspx Source Code
Use a Calendar Web control to select a single date.
Then format and display this date .

Form Posting and Validation Controls

Example 29 submit-form1.aspx Source Code
Submit ASP.Net form, then post data back to same form. (This is the default in ASP.Net.)
Example 30 submit-form2.aspx Source Code Source Code for verify1.aspx
Submit HTML form, post data to the form verify2.htm. (This is the traditional style for submitting HTML forms. Use method=get, which passes data in the URL.)
Example 31 submit-form3.aspx Source Code Source Code for verify1.aspx
Submit HTML form, post data to the form verify2.form. (This is the traditional style for submitting HTML forms. Use method=post, which passes data in the HTTP header.)
Example 32 submit-form4.aspx Source Code
Same as Example 29, but use the following ASP.Net validation controls: RequiredFieldValidator, CompareValidator, RangeValidator, RegularExpressionValidator.
Example 33 submit-form5.aspx Source Code Source Code for verify2.aspx
Same as Example 32, but post to the page verify2.aspx.
Example 34 regex.aspx Source Code
Validate expressions, given your own regular expression. Use for checking practice problems involving regular expressions.

IO to and from Textfiles

Example 35 show-poem.aspx Source Code
Display a poem read from a textfile in the Database folder on ectweb2.
Here is the input file: raven.txt.
Example 36 write-to-file1.aspx Source Code
Write a string in a multiline textbox to a file on the server.
Here is the server file: comment1.txt.
Example 37 write-to-file2.aspx Source Code
Write a string in a multiline textbox to a file on the server. Also import the System.IO namespace to avoid using fully qualified names.
Here is the server file comment2.txt.
Example 38 append-to-file.aspx Source Code
Append string in a multiline textbox to the end of a file on the server. If the file does not already exist, it will be created.
Here is the server file: comment.txt.
Example 39 guestbook.aspx Source Code
Add comments to a guestbook, with name and time stamp.
Here is the guestbook.txt file.
Example 40 voting-machine2 Source Code
Add comments to a guestbook, with name and time stamp.
Here is the vote-totals.txt file.

The Session and Application Collections

Example 41 lack-of-state.aspx Source Code
Check out the behavior of the global variable numberOfPostings.
Example 42 clickcounter4.aspx Source Code
Keep track of clicks using the Session collection. In this example, refreshing the form sometimes causes a button click.
Example 43 clickcounter5.aspx Source Code
Keep track of clicks using the Application collection. In this example, refreshing the form sometimes causes a button click.
Example 44 find-word1.aspx Source Code
Check if a word is in the top 500 of English Words in frequency. The input file common-words.txt is reread for each submit.
Example 45 find-word2.aspx Source Code
Check if a word is in the top 500 of English words in frequency. Read the input file once, storing the array of words in the Session collection.
Example 46 grocery-lookup1.aspx Source Code
Look up information in the groceries.csv file by UPC code. The file is reread for each requested item.
Example 47 grocery-lookup2.aspx Source Code
Display items in a grocery database using the primary key UPC (Universal Product Code). Only read the input file groceries.csv once and store the array of data in the session collection.
Example 48 grocery-display1.aspx Source Code
Display the on sale items from the groceries2.txt in a Literal control. Use pre tags with a fixed width font. Add padding to the input file to make the columns line up.
Example 49 grocery-display2.aspx Source Code
Display the on sale items from the groceries2.txt in a Literal control. Use pre tags with a fixed width font. Use the string.Format method to format the display.
Example 50 login-page.aspx Source Code
main-page.aspx Source Code
The login page inputs the username and password and redirects to main-page.aspx if accepted. If the user tries to go to main-page.aspx directly, he or she is redirected to the login page. Here is the text file containing the usernames and passwords: passwords.txt.

CSS Examples

Example 51 color-game.aspx Source Code
Display a random color on the left. The user tries to match its hex color code on the right.
Example 52 absolute.htm
Right click and View source to see source code. Show how to position div layers with absolute positioning.
Example 53 float.htm
Right click and View source to see source code. Use the CSS property float to allow text to flow around images.

Database Examples

Example 54 grocery-display3.aspx Source Code
Display the on sale items from the groceries.mdb database database in a DataGrid control. Pick a select statement for choosing which data to display. Here is a zip file of the groceries.mdb database.
Example 55 grocery-display4.aspx Source Code
Display the on sale items from the groceries.mdb database database in a DataGrid control. Pick a select statement for choosing which data to display. Here is a zip file of the groceries.mdb database.
Example 56 access-datasource.aspx Source Code
Display the on sale items from the groceries.mdb database in a DataGrid control. Use an AccessDatasource object to obtain the data.Here is a zip file of the groceries.mdb database.
Example 57 dataset-direct1.aspx Source Code
Display the on sale items from the groceries.mdb directly in a literal control by accessing the Tables collection of the Dataset Directly. Here is a zip file of the groceries.mdb database.
Example 58 show-xml.aspx Source Code
Display the xml code for the DataSet object created from the groceries.mdb database.
Example 59 dataset-direct2.aspx Source Code
Display the data in the groceries.mdb database in textboxes, which are populated from the DataSet object without using data binding. Here is a zip file of the groceries.mdb database.
Example 60 repeater.aspx Source Code
Display the on sale items from the groceries.mdb database using a Repeater control. Here is a zip file of the groceries.mdb database.
Example 61 persons-display.aspx Source Code
Use an AccessDataSource object to manage the connection. Display rows from the Persons table where age interval and gender are specified by the user. Here is a zip file file of the persons.mdb database.
Example 62 insert-data.aspx Source Code
Populate, display, and clear table data. Use the ExecuteNonQuery method of the command object to populate and clear the dataset. Here is the input text file persons.txt.
Example 63 voting-machine3.aspx Source Code
Record vote totals in a database.
Example 64 states.aspx Source Code
Load state names and abbreviations into a dropdownlist control using databinding. Here is the States table.
Example 65 seeds2.aspx Source Code
In this example, a Repeater control is not used. Controls are entered using HTML. Each time an order is placed, a row is entered in the Orders table of the seed-orders.mdb. Click here to view the Orders table.
Example 66 seeds1.aspx Source Code
In this example, a Repeater control is used to display the information from a database on a webpage in customized form. Even though HTML checkboxes are included, they are not functional. ASP.Net controls cannot be used in the Repeater output. Here is the database table that is displayed: SeedCatalog.

Special Topics

Example 67 cookies.aspx Source Code
Use a cookie to retrieve the name of the customer from the telephone number.
Example 68 Use a master page that displays content from two content pages:
Master Page Source Code: master-page.master
Content Pages: content-page1.aspx content-page2.aspx
Source Code: Content Page 1 Content Page 2
Example 69 login-page2.aspx Source Code
main-page2.aspx Source Code
The login page inputs the username and password and redirects to main-page2.aspx if accepted. If the user tries to go to main-page2.aspx directly, he or she is redirected to login2-page.aspx. New users are also allowed to sign in by giving their username and desired password. Passwords are encrypted using SHA (Shared Hash Algorithm). Here is the text file containing the usernames and encrypted passwords: passwords2.txt.