form1.vb

Mastering VBNet Include Source Code

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
        Friend WithEvents Button2 As System.Windows.Forms.Button
    Friend WithEvents Button3 As System.Windows.Forms.Button
    
    'Required by the Windows Form Designer
    Private components As System.ComponentModel.Container

    '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.Button3 = New System.Windows.Forms.Button()
        Me.Button2 = New System.Windows.Forms.Button()
        Me.SuspendLayout()
        '
        'Button3
        '
        Me.Button3.Font = New System.Drawing.Font("Verdana", 9.75!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Button3.Location = New System.Drawing.Point(400, 48)
        Me.Button3.Name = "Button3"
        Me.Button3.Size = New System.Drawing.Size(184, 32)
        Me.Button3.TabIndex = 2
        Me.Button3.Text = "Pie Chart with Chords"
        '
        'Button2
        '
        Me.Button2.Font = New System.Drawing.Font("Verdana", 9.75!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Button2.Location = New System.Drawing.Point(400, 8)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(184, 32)
        Me.Button2.TabIndex = 1
        Me.Button2.Text = "Color Pie Chart"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(592, 333)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Button3, Me.Button2})
        Me.Name = "Form1"
        Me.Text = "Pie Charts"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Dim g As System.Drawing.Graphics
        g = Me.CreateGraphics
        Dim brush As System.drawing.SolidBrush
        Dim rect As Rectangle
        brush = New System.Drawing.SolidBrush(Color.Green)
        Dim Angles() As Single = {0, 43, 79, 124, 169, 252, 331, 360}
        Dim colors() As Color = {Color.Red, Color.Cornsilk, Color.Firebrick, Color.OliveDrab, Color.LawnGreen, Color.SandyBrown, Color.MidnightBlue}
        g.Clear(Color.Ivory)
        rect = New Rectangle(100, 10, 300, 300)
        Dim angle As Integer
        For angle = 1 To Angles.GetUpperBound(0)
            brush.Color = Colors(angle - 1)
            g.FillPie(brush, rect, Angles(angle - 1), Angles(angle) - Angles(angle - 1))
        Next
        g.DrawEllipse(Pens.Black, rect)
    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click



        Dim g As System.Drawing.Graphics
        g = Me.CreateGraphics
        Dim brush As SolidBrush
        Dim pen As Pen
        Dim rect As Rectangle
        brush = New SolidBrush(Color.Black)
        pen = New Pen(Color.Black)
        Dim Angles() As Single = {0, 43, 79, 124, 169, 252, 331, 360}
        Dim colors() As Color = {Color.Red, Color.Cornsilk, Color.Firebrick, Color.OliveDrab, Color.LawnGreen, Color.SandyBrown, Color.MidnightBlue}
        g.Clear(Color.Ivory)
        rect = New Rectangle(100, 10, 300, 300)
        pen.Color = Color.Black
        Dim angle As Integer
        For angle = 1 To Angles.GetUpperBound(0)
            brush.Color = colors(angle - 1)
            g.FillPie(brush, rect, Angles(angle - 1), Angles(angle) - Angles(angle - 1))
            g.DrawPie(pen, rect, Angles(angle - 1), Angles(angle) - Angles(angle - 1))
        Next




    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)

    End Sub
End Class