VB.NET2

Introduction to Visual Basic .NET

APIIT SD INDIA Page 1

INTRODUCTION TO Visual Basic .net (CE00328-1)

ASSESSMENT MODE: INDIVIDUAL

TASKS 4 , 5 , 6

HAND OUT DATE: 6 –February-2012

HAND IN DATE: 27-Aprail-2012

SUBMITTED BY SUBMITTED TO

Raju Ranjan MS.SAKSHI POPLI

(Pt1082221) (MODULE LECTURER)



CERTIFICATE

This is to certify that Mr. Raju Ranjan of 4th Semester student (Computing Branch) of APIIT

SD INDIA have successfully completed his individual assignment named of V B .net on

Tasks 4 , 4 , 6 under the sheer guidance of Ms. Sakshi Popli.

Submitted by: - Submitted to:-

Raju Ranjan Ms.Sakshi Popli

PT1082221 Module lecturer



TABLE OF CONTEXT

Acknowledgement……………………………………………………………………………..4

Task 4………………………………………………………………………………………….5

Introduction

Objective

Planning

Design………………………………………………………………………………………….6

Implementation………………………………………………………………………………...7

Testing………………………………………………………………………………………....8

Task …………………………………………………………………………………………12

Introduction

Objective

Planning

Design………………………………………………………………………………………..13

Implementation……………………………………………………………………………….14

Testing………………………………………………………………………………………..16

Task …………………………………………………………………………………………17

Introduction

Objective

Planning………………………………………………………………………………………18

Design………………………………………………………………………………………..19

Implementation……………………………………………………………………………….20

Testing………………………………………………………………………………………..22

Conclusion……………………………………………………………………………………23

References……………………………………………………………………………………24



ACKNOWLEDGEMENT

This project is provided to make .net application. I give my full regards for providing the

opportunity to make “Visual Basic .net”, Ms.Sakshi Popli who had continually helped and

motivated us to complete the assignment. It was really a wonderful experience for me to work

under such a dynamic and helping personality. She gave us the knowledge of each &

everything related and beyond the module in order to enhance our skills and this assignment

has been made possible due to her expertise and knowledge.

Last and but not the least, I want to acknowledge all my friends and colleagues who

supported me in my assignment.

Submitted By:

Raju Ranjan

(Pt1082221)



Task4 – Identify Flags

Introduction:- A new project called Identify Flags , in this project we should display

the flag of a randomly selected country and provide the user with a list of countries

from which must choose the correct one. Through creating this task I learned many

things firstly how to enabled or disabled the buttons , label and panel, how to generate

random numbers, how to use select statement to determine which country has been

selected, use of if statement to check whether answer is correct and use of methods and

parameters to avoid code repetition.

Task 4:- Identify Flags

Objective:-

use radio buttons to provide choices

use panels to group options

generate random numbers

use select statement to determine which country has been selected

display image in picture box

use if statement to check whether answer is correct

use methods and parameters to avoid code repetition

Planning:-

Firstly I plan to create a form and specify the name and then declare all the variables.

I plan to take the same and small size of flag so that it looks better in picture box.

Then I think to generate random number and used to select the name of a country

which is then stored in a variable.

Then I plan how to use select statement to determine which country has been selected.

Then I plan to use if statement to check whether answer is correct.

Then I enabled all available country options so that the user can select the one they

think is correct, and the Flag button is disabled.

I plan to display Correct’ message when correct country selected.

And also plan to show Incorrect’ message when wrong country selected.

I plan to use Single method to avoid repetition of code.



Design:-

Flag Button

Picture Box

Lable

Radio

Button



`

Object Property Value

Form1 Name

Text

Frmflag

Identify Flags

Label1 Name

Text

lblMessage

“ “

RadioButton1 Name

Text

btnBelgium

Belgium

RaioButton2 Name

Text

btnCanada

Canada

RadioButton3 Name

Text

btnChina

China

RadiButton4 Name

Text

btnFinland

Finland

RadioButton5 Name

Text

btnFrance

France

RadioButton6 Name

Text

btnSudan

Sudan

RadioButton7 Name

Text

btnZambia

Zambia

Button Name

Text

btnFlag

Flag

Implementation:-

#Region "Identify flags"

Public Class Form1

Dim country As String 'declear country as string variable

Dim randomnum As Integer 'declear randomnum as integer

Dim randum As New Random 'declear randum as Randum

#Region "disabler function"

Public Sub disabler() 'declear a function for disabeling the

radiobutton

rdbCanada.Enabled = True 'make radio button disabled

rdbBelgium.Enabled = True 'make radio button disabled

rdbChina.Enabled = True 'make radio button disabled

rdbFinland.Enabled = True 'make radio button disabled

rdbSudan.Enabled = True 'make radio button disabled

rdbZambia.Enabled = True 'make radio button disabled

rdbFrance.Enabled = True 'make radio button disabled

End Sub

#End Region

#Region "form load"



Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As

System.EventArgs) Handles MyBase.Load

Me.Text = "Identify flags" 'caption of form

btnFlag.Text = "Flag" 'label of flag button

rdbBelgium.Text = "Belgium" 'label of belgium button

rdbCanada.Text = "Canada" 'label of canada button

rdbChina.Text = "China" 'label of china button

rdbFinland.Text = "Finland" 'label of finland button

rdbFrance.Text = "France" 'label of france button

rdbSudan.Text = "Sudan" 'label of sudan button

rdbZambia.Text = "Zambia" 'label of zambia button

End Sub

#End Region

#Region "Flag button"

Private Sub btnFlag_Click(ByVal sender As System.Object, ByVal e As

System.EventArgs) Handles btnFlag.Click

btnFlag.Enabled = False 'flag button is enabled

randomnum = randum.Next(1, 7) 'a randum number is generated

pnlconty.Enabled = True 'panel is enabled at click event of

flag button

lblMessage.Enabled = False 'label is disabled after click event

of flag button

lblMessage.Text = "

" 'label for showing the answer

Select Case randomnum 'use select statement to determine

which country is selected

Case 1

picFlag.Image = Image.FromFile("belgium-flag-1.png")

country = "Belgium"

'country variable store the value of Belgium

Case 2

picFlag.Image = Image.FromFile("Canada-Flag.png")

country = "Canada"

'country variable store the value of

Case 3

picFlag.Image = Image.FromFile("China-Flag-icon-

250x250.png")

country = "China"

'country variable store the value of China

Case 4

picFlag.Image = Image.FromFile("finland-flag-1.png")

country = "Finland"

'country variable store the value of Finland

Case 5

picFlag.Image = Image.FromFile("france.png")

country = "France"

'country variable store the value of France

Case 6

picFlag.Image = Image.FromFile("Sudan.png")

country = "Sudan"

'country variable store the value of Sudan

Case 7

picFlag.Image = Image.FromFile("Zambia.png")

country = "Zambia"

'country variable store the value of Zambia

pnlconty.Enabled = True

End Select



End Sub

#End Region

#Region "RadioButtonBelgium"

Private Sub rdbBelgium_CheckedChanged(ByVal sender As System.Object,

ByVal e As System.EventArgs) Handles rdbBelgium.CheckedChanged

If country = "Belgium" Then 'if statement

for choosing the correct answer

lblMessage.Text = " Answer is correct"

Else

lblMessage.Text = " Answer is incorrect"

End If

pnlconty.Enabled = False 'panel is disabled after the click

event of radio button

rdbBelgium.Checked = False 'it unchecked the radio button

btnFlag.Enabled = True 'flag button is enabled after click


End Sub

#End Region

#Region "RadioButton Canada"

Private Sub rdbCanada_CheckedChanged(ByVal sender As System.Object,

ByVal e As System.EventArgs) Handles rdbCanada.CheckedChanged

If country = "Canada" Then


Else


End If





rdbCanada.Checked = False 'it unchecked the radio button

End Sub

#End Region

#Region "RadioButton China"

Private Sub rdbChina_CheckedChanged(ByVal sender As System.Object,

ByVal e As System.EventArgs) Handles rdbChina.CheckedChanged

If country = "China" Then


Else


End If





rdbChina.Checked = False 'it unchecked the radio button

End Sub

#End Region

#Region "RadioButton Finland"

Private Sub rdbFinland_CheckedChanged(ByVal sender As System.Object,

ByVal e As System.EventArgs) Handles rdbFinland.CheckedChanged

If country = "Finland" Then


Else


End If





rdbFinland.Checked = False 'it unchecked the radio button



End Sub

#End Region

#Region "RadioButton France"

Private Sub rdbFrance_CheckedChanged(ByVal sender As System.Object,

ByVal e As System.EventArgs) Handles rdbFrance.CheckedChanged

If country = "France" Then


Else


End If



rdbFrance.Checked = False 'it unchecked the radio button



End Sub

#End Region

#Region "RadioBitton"

Private Sub rdbSudan_CheckedChanged(ByVal sender As System.Object,

ByVal e As System.EventArgs) Handles rdbSudan.CheckedChanged

If country = "Sudan" Then


Else


End If



rdbSudan.Checked = False 'it unchecked the radio button



End Sub

#End Region

#Region "RadioButton Zambia"

Private Sub rdbZambia_CheckedChanged(ByVal sender As System.Object,

ByVal e As System.EventArgs) Handles rdbZambia.CheckedChanged

If country = "Zambia" Then


Else


End If



rdbZambia.Checked = False 'it unchecked the radio button



End Sub

#End Region

End Class

#End Region



Testing:-

Project Title Identify Flag Testing Date 24/3/12

Test Case Name Identify Flag

Test Case ID 1

Conducted By Raju Ranjan

Description Display the flag of a randomly selected country

Testing Type Unit testing

Duration 2 day



Task 5 – Class Car

Introduction: - In this task I have to create a new Car object by specifying its location,

width, height, distance and colour. This Car class requires an enumerated type to determine

the direction of the car, either left or right. This will be used for drawing the car and moving

it. It must be drawn using the drawing methods provided in the Graphics class and should

look different depending which way it is facing. Through this project I learned to create a

class diagram also learn to create design through graphics. How we declare a constructor to

create Enum. Also we learned to move the car in picture Box.

Task 5:- Car Class

Objective:-

identify attributes

identify properties

identify methods

draw class diagram

implement enumerated types

implement private data

implement properties

implement constructor method

implement additional methods

Planning:-

Firstly I plan to create a form and specify the form name and then declare all the

variables.

Then I plan to create car through coordinate by the help of graphics.

I plan to specify its location, width, height, distance and its colour.

Also plan to provide Enum to fix the value of variable.

Plan to set the direction to left and move the car using the moveCar method

Plan to set the direction to right and move the car using the moveCar method

The left and right buttons must be disabled until the car has been created.



Design:-

Task Bar

Create Left Right

picRoad

btnCreate btnLeft btnRight




Form1 Name

Text

frmcar

Test car

Button1 Name

Text

btnCreate

Create

Button2 Name

Text

btnLeft

Left

Button3 Name

Text

btnRight

Right

PictureBox1 Name

Text

picRoad

Implementation:-

Imports Test_Car.CarClass 'import the Test_CarClass

#Region "Class car"

Public Class Car 'declear a graphics

variable

Dim k As Graphics

Public draw As carmove 'declear a public type

variable

Dim car1 As New CarClass 'create a object car1 of

carclass

Dim x As Integer 'declear a variable

Dim y As Integer 'declear a variable

Dim a As Integer 'declear a variable

#Region "Enum"

Public Enum carmove As Integer 'create a Enum

left = 1

right = 2

End Enum

#End Region

#Region "form load"


System.EventArgs) Handles MyBase.Load '

btnCreate.Text = "Create" 'write a text in label

btnLeft.Text = "Left" 'write a text in label

btnRight.Text = "Right" 'write a text in label

End Sub

#End Region



#Region "Function carcreate"

Public Function carcreate() As Integer 'function for create the

car

x = car1.pp.X

y = car1.pp.Y

k.FillRectangle(Brushes.Orange, x, y, 60, 40)

'create and fill the rectangle with pen and brush respectavily

k.FillRectangle(Brushes.WhiteSmoke, x + 10, 30, 40, 15)


k.FillRectangle(Brushes.Orange, x, 50, 110, 20)


k.FillEllipse(Brushes.Black, x + 20, 60, 20, 20)


k.FillEllipse(Brushes.Black, x + 60, 60, 20, 20)


End Function

#End Region

#Region "button Create"

Private Sub btnCreate_Click(ByVal sender As System.Object, ByVal e As

System.EventArgs) Handles btnCreate.Click

k = picRoad.CreateGraphics

'call the picture box to object

carcreate()

'call the carcreate function

btnCreate.Enabled = False 'set

the buttons as disabled after the click event of create button

btnLeft.Enabled = True 'set

the buttons as enabled after the click event of create button

btnRight.Enabled = True 'set

the buttons as enabled after the click event of create button

End Sub

#End Region

#Region "button Left"

Private Sub btnLeft_Click(ByVal sender As System.Object, ByVal e As

System.EventArgs) Handles btnLeft.Click

'x -= 20

'btnCreate_Click(sender, e)

draw = carmove.left 'set

the direction to left and move the car using the moveCar method

make() 'call

the make function

End Sub

#End Region

#Region "Button Right"

Private Sub btnRight_Click(ByVal sender As System.Object, ByVal e As

System.EventArgs) Handles btnRight.Click

'x += 20

'btnCreate_Click(sender, e)

draw = carmove.right 'set

the direction to left and move the car using the moveCar method

make() 'call

the make function

End Sub

#End Region



#Region "Function make"

Public Sub make()

'create a function

k = picRoad.CreateGraphics 'call

the picture box to object

If draw = carmove.left Then 'use

if statement for moving the car in width of picturebox

If x >= picRoad.Width Then

x = 20

Else

k.Clear(Color.White)

x -= 40

a -= 40

car1.pp = New Point(x, y)

carcreate()

End If

ElseIf draw = carmove.right Then

If x >= picRoad.Width Then

x = 20

Else

k.Clear(Color.White)

x += 40

a += 40

car1.pp = New Point(x, y)

carcreate()

End If

End If

End Sub

#End Region

End Class

#End Region

Testing:-

Project Title Car class Testing Date 28/3/12

Test Case Name Car class

Test Case ID 2

Conducted By Raju Ranjan

Description A Car class is required to model cars


Duration 2 day



Task 6 – Link Screen

Introduction: -

This new project is created to provide a welcome screen that leads to a main screen where the

user can choose which task they wish to complete:

Create Spike (task 3)

Identify flags (task 4)

Create a car (task 5)

The Welcome screen also allows the user to select a colour which is used for each of the task

screens. When a task is successfully completed; the task screen is hidden and may not be

selected again.

When the program starts, the Welcome screen (Task 2) will greet the user and allow them to

choose the colour for the application. This colour will be used as the background colour for

all the screens and for the Spike object when it is created.

The focus needs to be set to the Name textbox when the screen is first displayed and after the

user selects a new colour scheme.

LEARNING OUTCOME:-

We learned that to add forms to project, change form names and start up form .Also learned

to change start position of form and remove control box from form. How to add module to

project to declare Public variables .We also learned to create new form objects at runtime,

show forms at runtime, hide forms at runtime, close forms at runtime and show forms as

dialogs runtime.

Task 6:- Link Screens



Objective:-

add forms to project

change form names

change start up form

change start position of form

remove control box from form

add code module to project to declare Public variables

create new form objects at runtime

show forms at runtime

hide forms at runtime

close forms at runtime

show forms as dialogs at runtime

use focus to improve user interface

Planning:-

Firstly I plan to create a form and specify the form name and then declare all the

variables.

Then I plan to add forms to project and change the form names

I plan to remove control box from form and add code module to project to declare

public variables.

I plan to create new form objects at run time

I plan to show, hide ,close forms at runtime

I plan to show forms as dialogs at runtime

I plan to enable the Task button and disable Back button initially on each task screen.

I plan to disable the Task button and enabled Back button on completing each task

screen.

I plan to enable the Task button and disable Back button on failing to complet each

task screen.

I plan to show and hide Forms correctly. 4

Background of each form set to selected colour.



Design:-


Form1 Name

Text

Frmlink

Link Classes

MenuStrip Text Tasks

Tool Strip Text Tasks

Link Screens File Tasks

Spike

Link Screens File Tasks

Spike Flags Car

Create spike

Identify Flags

Create Car

MenuStrip

ToolStrip

(Toolbar)

btnCreate btnLeft btnRight



Implementation:-

#Region "Class Link"

Public Class link

#Region "Form load"


System.EventArgs) Handles MyBase.Load

Me.ControlBox = False 'make the control box

disabled

End Sub

#End Region

#Region "ToolStrip Button1"

Private Sub ToolStripButton1_Click(ByVal sender As System.Object, ByVal

e As System.EventArgs) Handles ToolStripButton1.Click

Dim mdichild As New spike 'create a object

mdichild of form Spike

mdichild.MdiParent = Me 'set it to MdiParent of

mdichild form

mdichild.Show() 'display the new form

End Sub

#End Region

#Region "Tool Strip Button2"



Dim mdichild As New flag 'create a object

mdichild of form flag

mdichild.MdiParent = Me 'set it to MdiParent

of mdichild form


End Sub

#End Region

#Region "Tool Strip1"

Private Sub ToolStrip1_ItemClicked(ByVal sender As System.Object, ByVal

e As System.Windows.Forms.ToolStripItemClickedEventArgs) Handles

ToolStrip1.ItemClicked

Dim mdichild As New Form 'create a object mdichild

of form Test car


of mdichild form


End Sub

#End Region

#Region "ToolStripButton3"



Dim mdichild As New Form 'create a object mdichild

of form Test car


of mdichild form


End Sub

#End Region

#Region "ToolStripMenuItem"

Private Sub CreateToolStripMenuItem_Click(ByVal sender As

System.Object, ByVal e As System.EventArgs) Handles

CreateToolStripMenuItem.Click



Dim mdichild As New spike 'create a object



of mdichild form


End Sub

#End Region

#Region "IdentifyFlagsToolStripMenuItem"

Private Sub IdentifyFlagsToolStripMenuItem_Click(ByVal sender As

System.Object, ByVal e As System.EventArgs) Handles

IdentifyFlagsToolStripMenuItem.Click

Dim mdichild As New flag 'create a object



of mdichild form


End Sub

#End Region

End Class

#End Region

MODULE CODE:-

Module Module1

Dim O As New Form1

Public Sub main()

O.ShowDialog()

End Sub

End Module



Testing:-

Project Title Welcome screen Testing Date 2/4/12

Test Case Name Welcome screen

Test Case ID 3

Conducted By Venkatesh Kumar

Description welcome screen that leads to a main screen


Duration 2 day





CONCLUSION

After doing this project I conclude that how to implement the enable disable criteria. How it

works by clicking the button. The program must check to see if it is correct by seeing whether

the selected country matches the one held in the country variable and output an appropriate

message on the screen.

Also I conclude that how to crate car by using the graphic class. How it works by clicking

button. The program must check to see if it is correct by seeing whether it moves towards the

left and right by clicking the appropriate button.

In 6th task we conclude that how to link the screen. How it works by clicking the button.

Welcome screen will greet the user and allow them to choose the colour for the application.

This colour will be used as the background colour for all the screens and for object when it is

created. And the Welcome screen also allows the user to select a colour which is used for

each of the task screens and also when a task is successfully completed.



REFERENCES

1. Radio Button Events in VB.Net (No author) This website

available at

http://www.programmersheaven.com/mb/VBNET/339353/339353/ra

dio-button-events/

Last accessed on 25th March. 2012(Time: 2:30 pm)

2. An Introduction to Programming Using Visual Basic .net

(5th

edition) by David I. Schneider

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