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 Button1 As System.Windows.Forms.Button
    Friend WithEvents Button2 As System.Windows.Forms.Button
    Friend WithEvents Button3 As System.Windows.Forms.Button
    Friend WithEvents GroupBox1 As System.Windows.Forms.GroupBox
    Friend WithEvents ComboBox1 As System.Windows.Forms.ComboBox
    Friend WithEvents GroupBox2 As System.Windows.Forms.GroupBox
    Friend WithEvents ComboBox2 As System.Windows.Forms.ComboBox
    Friend WithEvents GroupBox3 As System.Windows.Forms.GroupBox
    Friend WithEvents ComboBox3 As System.Windows.Forms.ComboBox
    Friend WithEvents GroupBox4 As System.Windows.Forms.GroupBox
    Friend WithEvents ListBox1 As System.Windows.Forms.ListBox
    Friend WithEvents GroupBox5 As System.Windows.Forms.GroupBox
    Friend WithEvents ListBox2 As System.Windows.Forms.ListBox
    Friend WithEvents ListBox3 As System.Windows.Forms.ListBox
    Friend WithEvents ListBox4 As System.Windows.Forms.ListBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.Label1 = New System.Windows.Forms.Label
        Me.Button1 = New System.Windows.Forms.Button
        Me.Button2 = New System.Windows.Forms.Button
        Me.Button3 = New System.Windows.Forms.Button
        Me.GroupBox1 = New System.Windows.Forms.GroupBox
        Me.ComboBox1 = New System.Windows.Forms.ComboBox
        Me.GroupBox2 = New System.Windows.Forms.GroupBox
        Me.ComboBox2 = New System.Windows.Forms.ComboBox
        Me.GroupBox3 = New System.Windows.Forms.GroupBox
        Me.ComboBox3 = New System.Windows.Forms.ComboBox
        Me.GroupBox4 = New System.Windows.Forms.GroupBox
        Me.ListBox1 = New System.Windows.Forms.ListBox
        Me.GroupBox5 = New System.Windows.Forms.GroupBox
        Me.ListBox4 = New System.Windows.Forms.ListBox
        Me.ListBox3 = New System.Windows.Forms.ListBox
        Me.ListBox2 = New System.Windows.Forms.ListBox
        Me.GroupBox1.SuspendLayout()
        Me.GroupBox2.SuspendLayout()
        Me.GroupBox3.SuspendLayout()
        Me.GroupBox4.SuspendLayout()
        Me.GroupBox5.SuspendLayout()
        Me.SuspendLayout()
        '
        'Label1
        '
        Me.Label1.Font = New System.Drawing.Font("Microsoft Sans Serif", 14.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Label1.Location = New System.Drawing.Point(32, 8)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(296, 32)
        Me.Label1.TabIndex = 0
        Me.Label1.Text = "High Tech Computer Store, Eh"
        '
        'Button1
        '
        Me.Button1.Font = New System.Drawing.Font("Microsoft Sans Serif", 12.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Button1.Location = New System.Drawing.Point(16, 16)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(88, 32)
        Me.Button1.TabIndex = 1
        Me.Button1.Text = "Order"
        '
        'Button2
        '
        Me.Button2.Font = New System.Drawing.Font("Microsoft Sans Serif", 12.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Button2.Location = New System.Drawing.Point(120, 16)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(96, 32)
        Me.Button2.TabIndex = 2
        Me.Button2.Text = "Reset"
        '
        'Button3
        '
        Me.Button3.Font = New System.Drawing.Font("Microsoft Sans Serif", 12.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Button3.Location = New System.Drawing.Point(232, 16)
        Me.Button3.Name = "Button3"
        Me.Button3.Size = New System.Drawing.Size(96, 32)
        Me.Button3.TabIndex = 3
        Me.Button3.Text = "Close"
        '
        'GroupBox1
        '
        Me.GroupBox1.Controls.Add(Me.ComboBox1)
        Me.GroupBox1.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.GroupBox1.Location = New System.Drawing.Point(16, 40)
        Me.GroupBox1.Name = "GroupBox1"
        Me.GroupBox1.Size = New System.Drawing.Size(160, 48)
        Me.GroupBox1.TabIndex = 4
        Me.GroupBox1.TabStop = False
        Me.GroupBox1.Text = "Manufacturer"
        '
        'ComboBox1
        '
        Me.ComboBox1.Items.AddRange(New Object() {"select", "Dell", "Hewlett Packard", "IBM", "Gateway"})
        Me.ComboBox1.Location = New System.Drawing.Point(8, 16)
        Me.ComboBox1.Name = "ComboBox1"
        Me.ComboBox1.Size = New System.Drawing.Size(144, 23)
        Me.ComboBox1.TabIndex = 0
        Me.ComboBox1.Text = "select"
        '
        'GroupBox2
        '
        Me.GroupBox2.Controls.Add(Me.ComboBox2)
        Me.GroupBox2.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.GroupBox2.Location = New System.Drawing.Point(16, 96)
        Me.GroupBox2.Name = "GroupBox2"
        Me.GroupBox2.Size = New System.Drawing.Size(160, 48)
        Me.GroupBox2.TabIndex = 5
        Me.GroupBox2.TabStop = False
        Me.GroupBox2.Text = "Memory Package"
        '
        'ComboBox2
        '
        Me.ComboBox2.Items.AddRange(New Object() {"select ", "512 MB DDR 333", "1 GB DDR 333", "2 GB DDR 333", "3 GB DDR 333"})
        Me.ComboBox2.Location = New System.Drawing.Point(8, 16)
        Me.ComboBox2.Name = "ComboBox2"
        Me.ComboBox2.Size = New System.Drawing.Size(144, 23)
        Me.ComboBox2.TabIndex = 0
        Me.ComboBox2.Text = "select "
        '
        'GroupBox3
        '
        Me.GroupBox3.Controls.Add(Me.ComboBox3)
        Me.GroupBox3.Location = New System.Drawing.Point(16, 152)
        Me.GroupBox3.Name = "GroupBox3"
        Me.GroupBox3.Size = New System.Drawing.Size(160, 48)
        Me.GroupBox3.TabIndex = 6
        Me.GroupBox3.TabStop = False
        Me.GroupBox3.Text = "Monitor Combo"
        '
        'ComboBox3
        '
        Me.ComboBox3.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.ComboBox3.Items.AddRange(New Object() {"select", "15 inch CRT", "17 inch CRT", "17 inch LCD", "19 inch LCD"})
        Me.ComboBox3.Location = New System.Drawing.Point(8, 16)
        Me.ComboBox3.Name = "ComboBox3"
        Me.ComboBox3.Size = New System.Drawing.Size(144, 23)
        Me.ComboBox3.TabIndex = 0
        Me.ComboBox3.Text = "select"
        '
        'GroupBox4
        '
        Me.GroupBox4.Controls.Add(Me.Button1)
        Me.GroupBox4.Controls.Add(Me.Button3)
        Me.GroupBox4.Controls.Add(Me.Button2)
        Me.GroupBox4.Location = New System.Drawing.Point(8, 312)
        Me.GroupBox4.Name = "GroupBox4"
        Me.GroupBox4.Size = New System.Drawing.Size(344, 56)
        Me.GroupBox4.TabIndex = 7
        Me.GroupBox4.TabStop = False
        '
        'ListBox1
        '
        Me.ListBox1.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.ListBox1.ItemHeight = 15
        Me.ListBox1.Items.AddRange(New Object() {"                        Welcome to Order Processing"})
        Me.ListBox1.Location = New System.Drawing.Point(16, 208)
        Me.ListBox1.Name = "ListBox1"
        Me.ListBox1.Size = New System.Drawing.Size(336, 94)
        Me.ListBox1.TabIndex = 8
        '
        'GroupBox5
        '
        Me.GroupBox5.Controls.Add(Me.ListBox4)
        Me.GroupBox5.Controls.Add(Me.ListBox3)
        Me.GroupBox5.Controls.Add(Me.ListBox2)
        Me.GroupBox5.Location = New System.Drawing.Point(192, 40)
        Me.GroupBox5.Name = "GroupBox5"
        Me.GroupBox5.Size = New System.Drawing.Size(160, 160)
        Me.GroupBox5.TabIndex = 9
        Me.GroupBox5.TabStop = False
        Me.GroupBox5.Text = "Item Costs"
        '
        'ListBox4
        '
        Me.ListBox4.Font = New System.Drawing.Font("Microsoft Sans Serif", 12.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.ListBox4.ItemHeight = 20
        Me.ListBox4.Location = New System.Drawing.Point(8, 120)
        Me.ListBox4.Name = "ListBox4"
        Me.ListBox4.Size = New System.Drawing.Size(136, 24)
        Me.ListBox4.TabIndex = 2
        '
        'ListBox3
        '
        Me.ListBox3.Font = New System.Drawing.Font("Microsoft Sans Serif", 12.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.ListBox3.ItemHeight = 20
        Me.ListBox3.Location = New System.Drawing.Point(8, 72)
        Me.ListBox3.Name = "ListBox3"
        Me.ListBox3.Size = New System.Drawing.Size(136, 24)
        Me.ListBox3.TabIndex = 1
        '
        'ListBox2
        '
        Me.ListBox2.Font = New System.Drawing.Font("Microsoft Sans Serif", 12.0!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.ListBox2.ItemHeight = 20
        Me.ListBox2.Location = New System.Drawing.Point(8, 16)
        Me.ListBox2.Name = "ListBox2"
        Me.ListBox2.Size = New System.Drawing.Size(136, 24)
        Me.ListBox2.TabIndex = 0
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.BackColor = System.Drawing.SystemColors.InactiveCaption
        Me.ClientSize = New System.Drawing.Size(360, 373)
        Me.Controls.Add(Me.GroupBox5)
        Me.Controls.Add(Me.ListBox1)
        Me.Controls.Add(Me.GroupBox4)
        Me.Controls.Add(Me.GroupBox3)
        Me.Controls.Add(Me.GroupBox2)
        Me.Controls.Add(Me.GroupBox1)
        Me.Controls.Add(Me.Label1)
        Me.Name = "Form1"
        Me.Text = "Computer Store Ordering"
        Me.GroupBox1.ResumeLayout(False)
        Me.GroupBox2.ResumeLayout(False)
        Me.GroupBox3.ResumeLayout(False)
        Me.GroupBox4.ResumeLayout(False)
        Me.GroupBox5.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
        Dim brand_cost As Double
        Dim ram_cost As Double
        Dim mon_cost As Double
        Dim total As Double
        checker()
        ListBox1.Items.Clear()
        ListBox1.Items.Add("                        Welcome to Order Processing")
        brand(brand_cost)
        memory(ram_cost)
        monitor(mon_cost)
        total = brand_cost + ram_cost + mon_cost
        ListBox1.Items.Add("Final Cost :" & Format(total, "currency"))

    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        ListBox1.Items.Clear()
        ListBox2.Items.Clear()
        ListBox3.Items.Clear()
        ListBox4.Items.Clear()
        ComboBox1.Text = "select"
        ComboBox2.Text = "select"
        ComboBox3.Text = "select"
    End Sub



    Sub checker()
        If ComboBox1.Text = "select" Then
            MessageBox.Show("Please select brand", "Missing Information")
            Exit Sub
        End If
        If ComboBox2.Text = "select" Then
            MessageBox.Show("Please select RAM", "Missing Information")
            Exit Sub
        End If
        If ComboBox3.Text = "select" Then
            MessageBox.Show("Please select Monitor", "Missing Information")
            Exit Sub
        End If

    End Sub
    Sub brand(ByRef brand_cost As Double)
        Select Case ComboBox1.Text
            Case "Dell"
                ListBox2.Items.Clear()
                ListBox2.Items.Add("Item :" & Format(300, "currency"))
                brand_cost = 300
                ListBox1.Items.Add("Dell :" & Format(300, "currency"))
            Case "Hewlett Packard"
                ListBox2.Items.Clear()
                ListBox2.Items.Add("Item :" & Format(200, "currency"))
                brand_cost = 200
                ListBox1.Items.Add("Hewlett Packard :" & Format(200, "currency"))
            Case "IBM"
                ListBox2.Items.Clear()
                ListBox2.Items.Add("Item :" & Format(500, "currency"))
                brand_cost = 500
                ListBox1.Items.Add("IBM :" & Format(500, "currency"))
            Case "Gateway"
                ListBox2.Items.Clear()
                ListBox2.Items.Add("Item :" & Format(250, "currency"))
                brand_cost = 250
                ListBox1.Items.Add("Gateway :" & Format(250, "currency"))
        End Select
    End Sub
    Sub memory(ByRef ram_cost As Double)
        Select Case ComboBox2.Text
            Case "512 MB DDR 333"
                ListBox3.Items.Clear()
                ListBox3.Items.Add("Item :" & Format(50, "currency"))
                ram_cost = 50
                ListBox1.Items.Add("512 MB RAM :" & Format(50, "currency"))
            Case "1 GB DDR 333"
                ListBox3.Items.Clear()
                ListBox3.Items.Add("Item :" & Format(75, "currency"))
                ram_cost = 75
                ListBox1.Items.Add("1 GB RAM :" & Format(75, "currency"))
            Case "2 GB DDR 333"
                ListBox3.Items.Clear()
                ListBox3.Items.Add("Item :" & Format(125, "currency"))
                ram_cost = 125
                ListBox1.Items.Add("2 GB RAM :" & Format(125, "currency"))
            Case "3 GB DDR 333"
                ListBox3.Items.Clear()
                ListBox3.Items.Add("Item :" & Format(200, "currency"))
                ram_cost = 200
                ListBox1.Items.Add("3 GB RAM :" & Format(200, "currency"))
        End Select
    End Sub

    Sub monitor(ByRef mon_cost As Double)
        Select Case ComboBox3.Text
            Case "15 inch CRT"
                ListBox4.Items.Clear()
                ListBox4.Items.Add("Item :" & Format(50, "currency"))
                mon_cost = 50
                ListBox1.Items.Add("15 Inch CRT :" & Format(50, "currency"))
            Case "17 inch CRT"
                ListBox4.Items.Clear()
                ListBox4.Items.Add("Item :" & Format(75, "currency"))
                mon_cost = 75
                ListBox1.Items.Add("17 inch CRT :" & Format(75, "currency"))
            Case "17 inch LCD"
                ListBox4.Items.Clear()
                ListBox4.Items.Add("Item :" & Format(100, "currency"))
                mon_cost = 100
                ListBox1.Items.Add("17 inch LCD :" & Format(100, "currency"))
            Case "19 inch LCD"
                ListBox4.Items.Clear()
                ListBox4.Items.Add("Item :" & Format(150, "currency"))
                mon_cost = 150
                ListBox1.Items.Add("19 inch LCD :" & Format(150, "currency"))
        End Select
    End Sub
    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        Me.Close()
    End Sub
End Class