Program 4

Program 4

Summary: Continue Program 3 to become more powerful in the field. Allow the user to read a file that contains encrypted data. Allow the user to add and delete data.  Present the user two options for saving: A full data set file or a encrypted file.

Required Program Data:

1. Crypto.vb: Described and used in Program 3

2. Three encrypted text files. These files are to be used for your testing.

Important concepts to know before you start:

1. The key to this program is to complete tasks in smaller steps. Don’t get ahead of yourself!

1. 1. Implement Add Item.

1. 2. Implement the file read. When you are starting – you can simply start by reading the file and displaying the file.

1. 3. After you have the file read complete - then, add the decrypted value to the display.

1. 4. Implement the delete

1. 5. Implement the Save Keys

2. A File Read example, Page 555.

3. Listview examples:

3. 1. http://dotnetref.blogspot.com/2007/08/using-listview-in-vbnet.html

3. 2. http://vb.net-informations.com/gui/vb.net-listview.htm

3. 3. http://howtostartprogramming.com/vb-net/vb-net-tutorial-44-openfiledialog/

3. 4. http://msdn.microsoft.com/en-us/library/system.windows.controls.openfiledialog.filter%28v=vs.95%29.aspx?cs-save-lang=1&cs-lang=vb#code-snipp

1. Key Enumeration

1. 1. http://msdn.microsoft.com/en-us/library/system.windows.forms.keys.aspx

NOTE: If you have to hardcode a path/file name, please know that my configuration *will not* match your personal Windows login. If you must hardcode the path, please hardcode your program path relatively. Meaning, don’t spell the entire path and reference the working directory.

 Requirements: See ProgramRubric.xls 

Need Solution email me:

topsolutions8@gmail.com