Nora  SABAU

A large scale (3000-5000 lines of code) content management system. The data are provided throught the Web Service. Choosing a web site and a content state you can modify the HTML or XSLT content with the previous and save options. Every time when a content is changed a track of the modifications is saved in the revision history.

Topics covered:

• Extensive use of interfaces and polymorphism
• Created application GUI and reusable user controls
• Implemented observer pattern through C# events
• Used splitters and docking to produce adjustable layouts
• Chain of responsibility pattern
• Factory pattern
• Singleton pattern
• Consumed a complex web service interface
• Created tree view programmatically and context menus with node specific data
• Used IComparer<T> to sort items in tree
• Implemented in-memory XSLT transformations with error handling using XML/XSLT framework objects
• Overrode paint on custom tab control to affect drawing
• Created custom combo box to add images
• Used WebBrowser control for preview of HTML/XSLT content
• Validated XML data
• Used WinForms error providers to validate data
• Consumption of generic classes

A Windows Forms program that simulates a bank machine. This is a 2-Tier application that uses several modal dialogs and a class library for business logic.

Topics covered:

• Modal dialogs and passing data between them
• 2-Tier architecture
• Design business logic using abstract classes and collection
• Abstract class, inheritance, and polymorphism
• Errors handling using try-catch statements
• Design UI with six modal dialogs
• Combo Box,Check Box, Text Box, Panels, add dynamicly controls to the panel

A Windows Forms program that downloads publicly available discussion groups and to apply filters. The upper left listbox contains a list of newsgroups; the lower left list box contains a list of articles in the selected newsgroup. The selected article's body text is on the right.

Topics covered:

• Split Container, anchor and dock
• Menu Strip control
• Applied filters for the newsgroups and for the articles
• Double click event handling for download stuff
• Single click event handling for show stuff that are already downloaded

Build a tree view programmatically by using a recursive function, and also to implement a context menu with add, remove, or even move up and down a menu item.

Topics covered:

• Tree View control populated programatically
• Context Menu with node specific data
• Menu item move up/down and add/remove menu item
• Build recursively a tree node
• IComparer<T> to sort items in tree
• Method to calculate the precedence

A small Windows Forms application for web users management.

Topics covered:

• Data Grid View
• Mouse Up event handling for the Grid View to update an user
• Regex for email validation
• DateTime.TryParse for date validation
• Search web user by name, email
• Dialogs forms and passing data between them
• Error handling

A Windows Forms program that shows how to use different topics from the C# course.

Topics covered:

• Abstract class, inheritance, polymorphism
• Override methods
• Constructor initializers
• Property methods
• 2-Tiers design
• Modal dialog and passing data between forms
• Input data validation
• Custom application exception
• Error handling
• Class library

A simple Windows Forms program that validates a date from the three separate values: year, month, and day.

Topics covered:

• Class with static method for validate data
• Used DateTime.TryParse method for validation
• Design form that cannot be resized or miximized
• Accessor keys (mnemonics)
• Default button of the form
• Different color for the result label
• Validation when the button is clicked

Windows Forms project for temperature converting. It uses many GUI design techniques like: size, startup position, tab order, default button, mnemonics, input focus and so on.

Topics covered:

• Text Box, Label, Button, Radio Button, Group Box controls
• Test invalid input
• Format the result with no more than one decimal place
• Show the result label using different color (red for error)

Windows Forms project with sample for Tab Control using.

Topics covered:

• Create object using the data from the GUI
• Add object
• Input data validation
• Populate Combo Box with objects

Small program that lists library books. The program allows the user to create a new book and the main form shows a summary of the titles entered.

Topics covered:

• Dialog and passing data between them
• Public property to exchange data without one having to access the other's controls directly
• Input data validation

This is a console application that reads a file containing data about the results of sports games and displays the data in a visually pleasing way.

Topics covered:

• Polymorphism, abstract classes, interface
• Factory pattern design
• Read from CSV format file into an object
• Test the arguments if they were in the right format
• Error handling
• Display the results using composite formatting

This is a console application that input some data, validate them and displays them in a visually pleasing way.

Topics covered:

• Generic collection List<T>
• Display result using composite format
• Input data validation
• DateTime.ParseExact to transform a string into a date

This is a console application that implement some object oriented concepts.

Topics covered:

• Base class implementation
• Derived classes implementation with new properties and methods
• Test object instanciated and test all their methods
• Input data hard code
• Errors handling using try-catch statements
• Create DLL using CSC.EXE C# compiler

This is a console application that illustrate the enumeration using. The program does not do much in practical sense. It creates three products, each with its own description, price, and status. The program then sells the first and second product and finally ships the second. Each time a product is sold or shipped, all three products are displayed

Topics covered:

• Product class implementation
• Enumeration datatype
• Methods implementation
• Override the Object class' ToString method
• Create ArrayList of three Product objects

This is a console application that print the Fibonacci sequence under 500.

This is a console application that count the occurrence of every new word from a text file.

Topics covered:

• Capture the content of a text file into a StreamReader object
• Hashtable object to hold the occurrence count of every word
• Errors handling using try-catch statements

Click to view

Topics covered:

• Master page, theme, and skin
• Navigation control
• AJAX accordion control
• XML based database - see sign Guestbook
• XSLT/XPath for XML data output - see view Guestbook
• CSS style design

Click to view

Topics covered:

• N-tier application architecture
• Files input/output
• Upload a text file and copy its content to the database
• Edit the file's content inside the database
• Delete a file from the database
• Recreate the content of a file from the database and download it
• SQL insert, update, delete statement
• Prevent SQL injection using parameterized query
• Custom validation controls for limit the file type to text file
• Custom validator control to filter the content of the file
• CSS style design

Click to view

Topics covered:

• N-tier application architecture
• Files input/output
• Upload a text file and copy its content to the database
• Edit the file's content inside the database
• Delete a file from the database
• Recreate the content of a file from the database and download it
• SQL insert, update, delete statement
• Prevent SQL injection using parameterized query
• Custom validation controls for limit the file type to text file
• Custom validator control to filter the content of the file
• CSS style design
• Web service consuming
• Master page, navigation control
• Form based authentication see in original project
• Login/create user features see in original project
• Secure upload page see in original project

This project consume a job web service. This part was implemented in the Files Editor Project v.2. You can see it here or you can download it, for a future implementation.

This project implements a guestbook using XML files as database. Thru a sign form the input data are saved in an XML file. The input data are validated before. The view part use an XSLT file to implement the output style of the XML database. You can see it here or you can download it, for a future implementation.