Sample Visual Basic .Net Programs

Instructions

The following are sample VB.Net programs. Each program is included with the full folder for the project in a single zip file. To run the programs or edit them you must do the following:

1. Download the zip file by clicking on the filename
2. You MUST unzip the file in order to run the program or modify the code
   (If you don't unzip the file then you will be able to open the .sln file - see next step - but it will not work correctly).
3. To start editing the program in Visual Basic, double click on the file with the ".sln" extension.
   NOTE: when you double click on the .sln file you may get a dialog box similar to the following. Since windows doesn't know who created the program Windows assumes that it might have been a hacker and the program might contain a virus. This is NOT an issue for these programs so Click on the OK button to continue.
   
4. Once you are in Visual Basic you can use the "Solution Explorer" to view the individual files in the project. If you don't see the Solution Explorer, choose the following menu choice: "view | Solution Explorer"
5. Most programs have a single Form1.vb file. Double click on the Form1.vb file in the Solution Explorer window to see the main form for the application.

	Topics	Files	Description / Screen Shots
1	00001000_labelsTextboxesButtons
		LabelsTextboxesButtons.zip Form1.vb
2	0000100_ages
3	00002000_hello
	MessageBox.Show setting properties of a Button (e.g. color)	Hello.zip Form1.vb	Program displays a message when user clicks a button.
4	00003000_helloWorldAgain
		helloWorldAgain.zip Form1.vb
5	00004000_changePropertiesAtRuntime
		ChangePropertiesAtRuntime.zip Form1.vb
6	00004500_casting-unfinished
7	00005000_perimeterAndArea
		perimeterAndArea.zip Form1.vb
8	00007000_numberAttributes
	two ifs (not nested, without Else) Mod	numberAttributes.zip Form1.vb	Asks user for a number. Message boxes describe if the number is positive, negative or even.
9	00008000_monthDays
		MonthDays.zip Form1.vb
10	00009000_ages
		ages.zip Form1.vb
11	00009005_countingClicks
	global variables concatenation in a MsgBox addition expression inside a MsgBox	CountingClicks.zip Form1.vb	Program has 4 buttons: Button1 - shows how many times user clicked Button1 Button2 - shows how many times user clicked Button2 "Total Clicks" - shows how many times user clicked both Button1 and Button2. Also shows a total number of clicks. "Reset Counts" - Sets all the counts back to zero
12	00009010_clickCount-times-if
	val global variables if		Program displays a message such as "0 times 2 is 0" When user clicks a button the display is updated for the next number in the two times table (e.g. "1 times 2 is 2") If the user clicks more than 3 times then after every click a message box appears that says "You sure click a lot ..."
13	00010000_ages-nestedIf
		ages-nestedIf.zip Form1.vb Form1.vb
14	00010100_ifElseifElse
		ifElseifElse.zip Form1.vb
15	00010105_ticTacToe
16	00010200_nestedIfElseifProblem
	if if with else if with elseif if with elseif and else nested if	nestedIfElseifProblem.zip Form1.vb	Example program to demonstrate how nested If/Elseif/Else statements work. User enters a number and program displays different message boxes based on the value of the number.
17	00011000_addUpDigitsInNumber
		AddUpDigitsInNumber.zip Form1.vb
18	00012000_manyBoxes
		manyBoxes.zip Form1.vb
19	00013000_factorial-ByVal
		Factorial-ByVal.zip Form1.vb
20	00013500_factorial-ByRef
		Factorial-ByRef.zip Form1.vb
21	00014000_factorial-ByValByRef
		Factorial-ByValByRef.zip Form1.vb
22	00015000_factorial-function
		Factorial-function.zip Form1.vb
23	00100000_maxMinEtc
		maxMinEtc.zip Module1.vb
24	00101000_drawing
		drawing.zip Module1.vb
25	00102000_drawing-arrayOfArrays
		drawing-arrayOfArrays.zip Module1.vb
26	00103000_points
		points.zip Module1.vb Point.vb
27	00104000_canvasPointLine
		canvasPointLine.zip Canvas.vb Line.vb Module1.vb Point.vb Polygon.vb
28	01000000_asciiChart
		asciiChart.zip Form1.vb