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 Label1 As System.Windows.Forms.Label
    Friend WithEvents Label2 As System.Windows.Forms.Label
    Friend WithEvents Label3 As System.Windows.Forms.Label
    Friend WithEvents Label4 As System.Windows.Forms.Label
    Friend WithEvents Label5 As System.Windows.Forms.Label
    Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
    Friend WithEvents TextBox2 As System.Windows.Forms.TextBox
    Friend WithEvents TextBox3 As System.Windows.Forms.TextBox
    Friend WithEvents TextBox4 As System.Windows.Forms.TextBox
    Friend WithEvents GroupBox1 As System.Windows.Forms.GroupBox
    Friend WithEvents RadioButton1 As System.Windows.Forms.RadioButton
    Friend WithEvents RadioButton2 As System.Windows.Forms.RadioButton
    Friend WithEvents RadioButton3 As System.Windows.Forms.RadioButton
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents Button2 As System.Windows.Forms.Button
    Friend WithEvents Button3 As System.Windows.Forms.Button
    Friend WithEvents Button4 As System.Windows.Forms.Button
    Friend WithEvents ListBox1 As System.Windows.Forms.ListBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.Label1 = New System.Windows.Forms.Label
        Me.Label2 = New System.Windows.Forms.Label
        Me.Label3 = New System.Windows.Forms.Label
        Me.Label4 = New System.Windows.Forms.Label
        Me.Label5 = New System.Windows.Forms.Label
        Me.TextBox1 = New System.Windows.Forms.TextBox
        Me.TextBox2 = New System.Windows.Forms.TextBox
        Me.TextBox3 = New System.Windows.Forms.TextBox
        Me.TextBox4 = New System.Windows.Forms.TextBox
        Me.GroupBox1 = New System.Windows.Forms.GroupBox
        Me.RadioButton3 = New System.Windows.Forms.RadioButton
        Me.RadioButton2 = New System.Windows.Forms.RadioButton
        Me.RadioButton1 = New System.Windows.Forms.RadioButton
        Me.Button1 = New System.Windows.Forms.Button
        Me.Button2 = New System.Windows.Forms.Button
        Me.Button3 = New System.Windows.Forms.Button
        Me.Button4 = New System.Windows.Forms.Button
        Me.ListBox1 = New System.Windows.Forms.ListBox
        Me.GroupBox1.SuspendLayout()
        Me.SuspendLayout()
        '
        'Label1
        '
        Me.Label1.Font = New System.Drawing.Font("Microsoft Sans Serif", 16.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Label1.Location = New System.Drawing.Point(64, 16)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(288, 24)
        Me.Label1.TabIndex = 0
        Me.Label1.Text = "The TEch Valley Car Dealer"
        '
        'Label2
        '
        Me.Label2.Font = New System.Drawing.Font("Microsoft Sans Serif", 10.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Label2.Location = New System.Drawing.Point(24, 56)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(184, 16)
        Me.Label2.TabIndex = 1
        Me.Label2.Text = "Enter Purchase Price of Car"
        '
        'Label3
        '
        Me.Label3.Font = New System.Drawing.Font("Microsoft Sans Serif", 10.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Label3.Location = New System.Drawing.Point(24, 88)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(184, 16)
        Me.Label3.TabIndex = 2
        Me.Label3.Text = "Enter Present Miles on  Car"
        '
        'Label4
        '
        Me.Label4.Font = New System.Drawing.Font("Microsoft Sans Serif", 10.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Label4.Location = New System.Drawing.Point(24, 112)
        Me.Label4.Name = "Label4"
        Me.Label4.Size = New System.Drawing.Size(184, 16)
        Me.Label4.TabIndex = 3
        Me.Label4.Text = "Enter Year Purchased"
        '
        'Label5
        '
        Me.Label5.Font = New System.Drawing.Font("Microsoft Sans Serif", 10.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Label5.Location = New System.Drawing.Point(24, 136)
        Me.Label5.Name = "Label5"
        Me.Label5.Size = New System.Drawing.Size(200, 24)
        Me.Label5.TabIndex = 4
        Me.Label5.Text = "Estimated Years of Ownership"
        '
        'TextBox1
        '
        Me.TextBox1.Location = New System.Drawing.Point(240, 56)
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.Size = New System.Drawing.Size(160, 20)
        Me.TextBox1.TabIndex = 5
        Me.TextBox1.Text = ""
        '
        'TextBox2
        '
        Me.TextBox2.Location = New System.Drawing.Point(240, 88)
        Me.TextBox2.Name = "TextBox2"
        Me.TextBox2.Size = New System.Drawing.Size(160, 20)
        Me.TextBox2.TabIndex = 6
        Me.TextBox2.Text = ""
        '
        'TextBox3
        '
        Me.TextBox3.Location = New System.Drawing.Point(240, 112)
        Me.TextBox3.Name = "TextBox3"
        Me.TextBox3.Size = New System.Drawing.Size(160, 20)
        Me.TextBox3.TabIndex = 7
        Me.TextBox3.Text = ""
        '
        'TextBox4
        '
        Me.TextBox4.Location = New System.Drawing.Point(240, 136)
        Me.TextBox4.Name = "TextBox4"
        Me.TextBox4.Size = New System.Drawing.Size(160, 20)
        Me.TextBox4.TabIndex = 8
        Me.TextBox4.Text = ""
        '
        'GroupBox1
        '
        Me.GroupBox1.Controls.Add(Me.RadioButton3)
        Me.GroupBox1.Controls.Add(Me.RadioButton2)
        Me.GroupBox1.Controls.Add(Me.RadioButton1)
        Me.GroupBox1.Font = New System.Drawing.Font("Microsoft Sans Serif", 12.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.GroupBox1.Location = New System.Drawing.Point(16, 312)
        Me.GroupBox1.Name = "GroupBox1"
        Me.GroupBox1.Size = New System.Drawing.Size(376, 56)
        Me.GroupBox1.TabIndex = 9
        Me.GroupBox1.TabStop = False
        '
        'RadioButton3
        '
        Me.RadioButton3.Location = New System.Drawing.Point(256, 24)
        Me.RadioButton3.Name = "RadioButton3"
        Me.RadioButton3.TabIndex = 2
        Me.RadioButton3.Text = "Poor"
        '
        'RadioButton2
        '
        Me.RadioButton2.Location = New System.Drawing.Point(136, 24)
        Me.RadioButton2.Name = "RadioButton2"
        Me.RadioButton2.TabIndex = 1
        Me.RadioButton2.Text = "Fair"
        '
        'RadioButton1
        '
        Me.RadioButton1.Location = New System.Drawing.Point(16, 24)
        Me.RadioButton1.Name = "RadioButton1"
        Me.RadioButton1.TabIndex = 0
        Me.RadioButton1.Text = "Good"
        '
        'Button1
        '
        Me.Button1.Font = New System.Drawing.Font("Microsoft Sans Serif", 10.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Button1.Location = New System.Drawing.Point(16, 376)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(80, 32)
        Me.Button1.TabIndex = 10
        Me.Button1.Text = "New"
        '
        'Button2
        '
        Me.Button2.Font = New System.Drawing.Font("Microsoft Sans Serif", 10.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Button2.Location = New System.Drawing.Point(112, 376)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(72, 32)
        Me.Button2.TabIndex = 11
        Me.Button2.Text = "Used"
        '
        'Button3
        '
        Me.Button3.Font = New System.Drawing.Font("Microsoft Sans Serif", 10.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Button3.Location = New System.Drawing.Point(208, 376)
        Me.Button3.Name = "Button3"
        Me.Button3.Size = New System.Drawing.Size(80, 32)
        Me.Button3.TabIndex = 12
        Me.Button3.Text = "Clear"
        '
        'Button4
        '
        Me.Button4.Font = New System.Drawing.Font("Microsoft Sans Serif", 10.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Button4.Location = New System.Drawing.Point(312, 376)
        Me.Button4.Name = "Button4"
        Me.Button4.Size = New System.Drawing.Size(80, 32)
        Me.Button4.TabIndex = 13
        Me.Button4.Text = "Close"
        '
        'ListBox1
        '
        Me.ListBox1.Items.AddRange(New Object() {"Purchase          Year            Selling               Yearly                   " & _
        "  Total", "Condition                              Price                 Depreciation        " & _
        "   Depreciation    "})
        Me.ListBox1.Location = New System.Drawing.Point(16, 168)
        Me.ListBox1.Name = "ListBox1"
        Me.ListBox1.Size = New System.Drawing.Size(376, 147)
        Me.ListBox1.TabIndex = 14
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(408, 413)
        Me.Controls.Add(Me.ListBox1)
        Me.Controls.Add(Me.Button4)
        Me.Controls.Add(Me.Button3)
        Me.Controls.Add(Me.Button2)
        Me.Controls.Add(Me.Button1)
        Me.Controls.Add(Me.GroupBox1)
        Me.Controls.Add(Me.TextBox4)
        Me.Controls.Add(Me.TextBox3)
        Me.Controls.Add(Me.TextBox2)
        Me.Controls.Add(Me.TextBox1)
        Me.Controls.Add(Me.Label5)
        Me.Controls.Add(Me.Label4)
        Me.Controls.Add(Me.Label3)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.Label1)
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.GroupBox1.ResumeLayout(False)
        Me.ResumeLayout(False)

    End Sub

#End Region

    
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        checker()
	'call to checker to verify all entered values
	dim price as double
	dim miles as double
	dim year as double
	dim owned as double
        Dim dep_rate As Double
        price = CDbl(TextBox1.Text)
        miles = CDbl(TextBox2.Text)
        year = CDbl(TextBox3.Text)
        owned = CDbl(TextBox4.Text)
        dep_rate = 1 / 6
	ListBox1.Items.add ("")
        compute(price, miles, year, owned, dep_rate)
    



    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        checker()
   	'call to checker to verify all entered values 
	dim price as double
	dim miles as double
	dim year as double
	dim owned as double   
	dim dep_rate as double

        price = CDbl(TextBox1.Text)
        miles = CDbl(TextBox2.Text)
        year = CDbl(TextBox3.Text)
        owned = CDbl(TextBox4.Text)

        dep_rate = 0.25
	ListBox1.Items.add ("")
        compute(price, miles, year, owned, dep_rate)
	

    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        Dim settabs As String = "{0,-10}{1,-10}{2,-12}{3,-14}{4,-14}"
        TextBox1.Clear()
        TextBox2.Clear()
        TextBox3.Clear()
        TextBox4.Clear()
        With ListBox1.Items
            .Clear()
            .Add(String.Format(settabs, "Purchase", "Year", "Selling", "Yearly", "Total"))
            .Add(String.Format(settabs, "Condition", " ", "Price", "Depreciation", "Depreciation"))
        End With
    End Sub

    Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
        Me.Close()
    End Sub

    Private Sub checker()
        'verify all datafields before commencing calculations

        Dim verify As Double
        Try
            verify = CDbl(TextBox1.Text)
            verify = CDbl(TextBox2.Text)
            verify = CDbl(TextBox3.Text)
            verify = CDbl(TextBox4.Text)
        Catch ex As Exception
            MessageBox.Show("Please Enter Proper Numerical Values", "Invalid Information")
        End Try

        If RadioButton1.Checked = False And RadioButton2.Checked = False And RadioButton3.Checked = False Then
            MessageBox.Show("Please Select Vehicle Condition", "Missing Information")
            Exit Sub
        End If
    End Sub

    Private Sub compute(ByVal price As Double, ByVal miles As Double, ByVal year As Double, ByVal owned As Double, ByVal dep_rate As Double)
        'pass information to subroutine to handle calculations
        Dim value As Double
        Dim cond As String
        Dim value_loss As Double
        Dim i As Integer
        Dim settabs As String = "{0,-10}{1,-10}{2,-12}{3,-14}{4,-14}"
        Dim year_loss As Double
        Dim all_loss As Double
        Dim final_cost As Double
        Dim mile_loss As Double

        year_loss = (dep_rate * price)
        condition(cond, value_loss)

        For i = 0 To (owned - 1) Step 1
            all_loss = all_loss + year_loss
            ListBox1.Items.Add(String.Format(settabs, cond, year, Format(price, "currency"), Format(year_loss, "currency"), Format(all_loss, "currency")))
            year = year + 1
            price = price - year_loss
        Next
        ListBox1.Items.Add("")
        'miles calculate
        If miles > (owned * 12000) Then
            miles = miles - (owned * 12000)
            mile_loss = miles / 10
            ListBox1.Items.Add(" Value lost from excess mileage: " & Format(mile_loss, "currency"))
        End If
        ListBox1.Items.Add("Value lost from vehicle condition: " & Format(value_loss, "currency"))
        final_cost = price - value_loss - mile_loss
        ListBox1.Items.Add("Present Trade-in Value: " & Format(final_cost, "currency"))
    End Sub


    Private Sub condition(ByRef cond As String, ByRef value_loss As Double)
        'check radiobuttons and assign value
        If RadioButton1.Checked = True Then
            cond = "Good"
            value_loss = 0
        Else
            If RadioButton2.Checked = True Then
                cond = "Fair"
                value_loss = 1000
            Else
                If RadioButton3.Checked = True Then
                    cond = "Poor"
                    value_loss = 2000
                End If
            End If
        End If
    End Sub

End Class