Answer to Question #204177 in Visual Basic for Kabelo Mabalane

Question

CUM Books need a program to calculate a customer’s total book price and the discount given to the customer Accept the customer’s name, type of customer and the discount given. Calculate the total book price bought by the customer based on the customer’s relationship with CUM Books. Assume that the price of one book is R5500 User-interface specifications: Input Specifications: • Accept the customer’s relationship with CUM Books using three radio buttons. The type of customer can be: Regular, Non-regular or Passers-by (Store “R”, “N” or “P” respectively for the type of customer). • Use appropriate controls for the other input value(s). • Provide a button that the user must click to process the data and display the output

Answer 1

<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Partial Class frmCUMBooks
    Inherits System.Windows.Forms.Form


    'Form overrides dispose to clean up the component list.
    <System.Diagnostics.DebuggerNonUserCode()> _
    Protected Overrides Sub Dispose(ByVal disposing As Boolean)
        Try
            If disposing AndAlso components IsNot Nothing Then
                components.Dispose()
            End If
        Finally
            MyBase.Dispose(disposing)
        End Try
    End Sub


    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer


    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.rbRegular = New System.Windows.Forms.RadioButton()
        Me.Label1 = New System.Windows.Forms.Label()
        Me.btnCalculate = New System.Windows.Forms.Button()
        Me.GroupBox1 = New System.Windows.Forms.GroupBox()
        Me.rbPassersBy = New System.Windows.Forms.RadioButton()
        Me.rbNonRegular = New System.Windows.Forms.RadioButton()
        Me.txtCustomerName = New System.Windows.Forms.TextBox()
        Me.Label3 = New System.Windows.Forms.Label()
        Me.txtTotalBookPrice = New System.Windows.Forms.TextBox()
        Me.Label2 = New System.Windows.Forms.Label()
        Me.txtDiscount = New System.Windows.Forms.TextBox()
        Me.GroupBox1.SuspendLayout()
        Me.SuspendLayout()
        '
        'rbRegular
        '
        Me.rbRegular.AutoSize = True
        Me.rbRegular.Checked = True
        Me.rbRegular.Location = New System.Drawing.Point(35, 28)
        Me.rbRegular.Name = "rbRegular"
        Me.rbRegular.Size = New System.Drawing.Size(62, 17)
        Me.rbRegular.TabIndex = 0
        Me.rbRegular.TabStop = True
        Me.rbRegular.Text = "Regular"
        Me.rbRegular.UseVisualStyleBackColor = True
        '
        'Label1
        '
        Me.Label1.AutoSize = True
        Me.Label1.Location = New System.Drawing.Point(26, 20)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(136, 13)
        Me.Label1.TabIndex = 1
        Me.Label1.Text = "Enter the customer’s name:"
        '
        'btnCalculate
        '
        Me.btnCalculate.Location = New System.Drawing.Point(168, 225)
        Me.btnCalculate.Name = "btnCalculate"
        Me.btnCalculate.Size = New System.Drawing.Size(100, 23)
        Me.btnCalculate.TabIndex = 2
        Me.btnCalculate.Text = "Calculate"
        Me.btnCalculate.UseVisualStyleBackColor = True
        '
        'GroupBox1
        '
        Me.GroupBox1.Controls.Add(Me.rbPassersBy)
        Me.GroupBox1.Controls.Add(Me.rbNonRegular)
        Me.GroupBox1.Controls.Add(Me.rbRegular)
        Me.GroupBox1.Location = New System.Drawing.Point(29, 56)
        Me.GroupBox1.Name = "GroupBox1"
        Me.GroupBox1.Size = New System.Drawing.Size(239, 108)
        Me.GroupBox1.TabIndex = 3
        Me.GroupBox1.TabStop = False
        Me.GroupBox1.Text = "Select the type of customer "
        '
        'rbPassersBy
        '
        Me.rbPassersBy.AutoSize = True
        Me.rbPassersBy.Location = New System.Drawing.Point(35, 74)
        Me.rbPassersBy.Name = "rbPassersBy"
        Me.rbPassersBy.Size = New System.Drawing.Size(76, 17)
        Me.rbPassersBy.TabIndex = 0
        Me.rbPassersBy.TabStop = True
        Me.rbPassersBy.Text = "Passers-by"
        Me.rbPassersBy.UseVisualStyleBackColor = True
        '
        'rbNonRegular
        '
        Me.rbNonRegular.AutoSize = True
        Me.rbNonRegular.Location = New System.Drawing.Point(35, 51)
        Me.rbNonRegular.Name = "rbNonRegular"
        Me.rbNonRegular.Size = New System.Drawing.Size(80, 17)
        Me.rbNonRegular.TabIndex = 0
        Me.rbNonRegular.TabStop = True
        Me.rbNonRegular.Text = "Non-regular"
        Me.rbNonRegular.UseVisualStyleBackColor = True
        '
        'txtCustomerName
        '
        Me.txtCustomerName.Location = New System.Drawing.Point(168, 17)
        Me.txtCustomerName.Name = "txtCustomerName"
        Me.txtCustomerName.Size = New System.Drawing.Size(100, 20)
        Me.txtCustomerName.TabIndex = 4
        '
        'Label3
        '
        Me.Label3.AutoSize = True
        Me.Label3.Location = New System.Drawing.Point(26, 202)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(105, 13)
        Me.Label3.TabIndex = 1
        Me.Label3.Text = "The total book price:"
        '
        'txtTotalBookPrice
        '
        Me.txtTotalBookPrice.Location = New System.Drawing.Point(168, 199)
        Me.txtTotalBookPrice.Name = "txtTotalBookPrice"
        Me.txtTotalBookPrice.ReadOnly = True
        Me.txtTotalBookPrice.Size = New System.Drawing.Size(100, 20)
        Me.txtTotalBookPrice.TabIndex = 4
        '
        'Label2
        '
        Me.Label2.AutoSize = True
        Me.Label2.Location = New System.Drawing.Point(26, 173)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(102, 13)
        Me.Label2.TabIndex = 1
        Me.Label2.Text = " The book discount:"
        '
        'txtDiscount
        '
        Me.txtDiscount.Location = New System.Drawing.Point(168, 170)
        Me.txtDiscount.Name = "txtDiscount"
        Me.txtDiscount.ReadOnly = True
        Me.txtDiscount.Size = New System.Drawing.Size(100, 20)
        Me.txtDiscount.TabIndex = 4
        '
        'frmCUMBooks
        '
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(299, 261)
        Me.Controls.Add(Me.txtTotalBookPrice)
        Me.Controls.Add(Me.txtDiscount)
        Me.Controls.Add(Me.txtCustomerName)
        Me.Controls.Add(Me.Label3)
        Me.Controls.Add(Me.GroupBox1)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.btnCalculate)
        Me.Controls.Add(Me.Label1)
        Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle
        Me.MaximizeBox = False
        Me.MinimizeBox = False
        Me.Name = "frmCUMBooks"
        Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
        Me.Text = "CUM Books"
        Me.GroupBox1.ResumeLayout(False)
        Me.GroupBox1.PerformLayout()
        Me.ResumeLayout(False)
        Me.PerformLayout()


    End Sub
    Friend WithEvents rbRegular As System.Windows.Forms.RadioButton
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents btnCalculate As System.Windows.Forms.Button
    Friend WithEvents GroupBox1 As System.Windows.Forms.GroupBox
    Friend WithEvents txtCustomerName As System.Windows.Forms.TextBox
    Friend WithEvents rbPassersBy As System.Windows.Forms.RadioButton
    Friend WithEvents rbNonRegular As System.Windows.Forms.RadioButton
    Friend WithEvents Label3 As System.Windows.Forms.Label
    Friend WithEvents txtTotalBookPrice As System.Windows.Forms.TextBox
    Friend WithEvents Label2 As System.Windows.Forms.Label
    Friend WithEvents txtDiscount As System.Windows.Forms.TextBox


End Class

Public Class frmCUMBooks
    'the price of one book is R5500
    Private Const BOOK_PRICE As Double = 5500
    ''' <summary>
    ''' Calculate button
    ''' </summary>
    ''' <param name="sender"></param>
    ''' <param name="e"></param>
    ''' <remarks></remarks>
    Private Sub btnCalculate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalculate.Click
        Dim discountPercent As Double = 0D
        Dim discount As Double = 0D
        Dim totalBookPrice As Double
        If rbRegular.Checked Then
            discountPercent = 0.2D
        End If
        If rbPassersBy.Checked Then
            discountPercent = 0.1D
        End If
        discount = BOOK_PRICE * discountPercent
        totalBookPrice = BOOK_PRICE - discount
        txtDiscount.Text = "R" + discount.ToString("N")
        txtTotalBookPrice.Text = "R" + totalBookPrice.ToString("N")
    End Sub


   
End Class