Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    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.
    Friend WithEvents grpboxOptions As System.Windows.Forms.GroupBox
    Friend WithEvents chkWaiting As System.Windows.Forms.CheckBox
    Friend WithEvents chkForwarding As System.Windows.Forms.CheckBox
    Friend WithEvents chkCallerID As System.Windows.Forms.CheckBox
    Friend WithEvents btnCalc As System.Windows.Forms.Button
    Friend WithEvents lblTotal As System.Windows.Forms.Label
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.grpboxOptions = New System.Windows.Forms.GroupBox
        Me.chkCallerID = New System.Windows.Forms.CheckBox
        Me.chkForwarding = New System.Windows.Forms.CheckBox
        Me.chkWaiting = New System.Windows.Forms.CheckBox
        Me.btnCalc = New System.Windows.Forms.Button
        Me.lblTotal = New System.Windows.Forms.Label
        Me.grpboxOptions.SuspendLayout()
        Me.SuspendLayout()
        '
        'grpboxOptions
        '
        Me.grpboxOptions.Controls.Add(Me.chkCallerID)
        Me.grpboxOptions.Controls.Add(Me.chkForwarding)
        Me.grpboxOptions.Controls.Add(Me.chkWaiting)
        Me.grpboxOptions.Location = New System.Drawing.Point(40, 24)
        Me.grpboxOptions.Name = "grpboxOptions"
        Me.grpboxOptions.Size = New System.Drawing.Size(192, 152)
        Me.grpboxOptions.TabIndex = 0
        Me.grpboxOptions.TabStop = False
        Me.grpboxOptions.Text = "Select options"
        '
        'chkCallerID
        '
        Me.chkCallerID.Location = New System.Drawing.Point(16, 112)
        Me.chkCallerID.Name = "chkCallerID"
        Me.chkCallerID.Size = New System.Drawing.Size(144, 24)
        Me.chkCallerID.TabIndex = 2
        Me.chkCallerID.Text = "Caller ID"
        '
        'chkForwarding
        '
        Me.chkForwarding.Location = New System.Drawing.Point(16, 72)
        Me.chkForwarding.Name = "chkForwarding"
        Me.chkForwarding.Size = New System.Drawing.Size(144, 24)
        Me.chkForwarding.TabIndex = 1
        Me.chkForwarding.Text = "Call Forwarding"
        '
        'chkWaiting
        '
        Me.chkWaiting.Location = New System.Drawing.Point(16, 32)
        Me.chkWaiting.Name = "chkWaiting"
        Me.chkWaiting.Size = New System.Drawing.Size(144, 24)
        Me.chkWaiting.TabIndex = 0
        Me.chkWaiting.Text = "Call Waiting"
        '
        'btnCalc
        '
        Me.btnCalc.Location = New System.Drawing.Point(24, 208)
        Me.btnCalc.Name = "btnCalc"
        Me.btnCalc.Size = New System.Drawing.Size(120, 32)
        Me.btnCalc.TabIndex = 1
        Me.btnCalc.Text = "Calculate"
        '
        'lblTotal
        '
        Me.lblTotal.Location = New System.Drawing.Point(184, 208)
        Me.lblTotal.Name = "lblTotal"
        Me.lblTotal.Size = New System.Drawing.Size(88, 32)
        Me.lblTotal.TabIndex = 2
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.BackColor = System.Drawing.SystemColors.ActiveBorder
        Me.ClientSize = New System.Drawing.Size(296, 253)
        Me.Controls.Add(Me.lblTotal)
        Me.Controls.Add(Me.btnCalc)
        Me.Controls.Add(Me.grpboxOptions)
        Me.ForeColor = System.Drawing.Color.DarkSlateBlue
        Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle
        Me.MaximizeBox = False
        Me.MinimizeBox = False
        Me.Name = "Form1"
        Me.Opacity = 0.95
        Me.Text = "Phone Bill"
        Me.grpboxOptions.ResumeLayout(False)
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub btnCalc_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalc.Click
        Dim forward = Me.chkForwarding.Checked
        Dim caller = Me.chkCallerID.Checked
        Dim waiting = Me.chkWaiting.Checked

        Static total As Decimal = 25.0
        If forward Then
            total = total + 3.5
        ElseIf caller Then
            total = total + 3.5
        ElseIf waiting Then
        total = total + 3.5
        End If
        Me.lblTotal.Text = "Total: $" & total

        If total = 39 Then
            total = 35.5
            Me.lblTotal.Text = "Total: $" & total
        End If
    End Sub
End Class