Prograss Bar Demo : Progress Bar « GUI « VB.Net

1. VB.Net
2. GUI
3. Progress Bar

Prograss Bar Demo

Imports System.Windows.Forms
Imports System.IO


Module Module1

    Sub Main()
        Application.Run(New Form1)
    End Sub

End Module



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 ProgressBar1 As System.Windows.Forms.ProgressBar
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents StatusBar1 As System.Windows.Forms.StatusBar
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.ProgressBar1 = New System.Windows.Forms.ProgressBar()
        Me.Button1 = New System.Windows.Forms.Button()
        Me.StatusBar1 = New System.Windows.Forms.StatusBar()
        Me.SuspendLayout()
        '
        'ProgressBar1
        '
        Me.ProgressBar1.Location = New System.Drawing.Point(24, 160)
        Me.ProgressBar1.Name = "ProgressBar1"
        Me.ProgressBar1.Size = New System.Drawing.Size(408, 23)
        Me.ProgressBar1.TabIndex = 3
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(328, 32)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(112, 23)
        Me.Button1.TabIndex = 4
        Me.Button1.Text = "Calculate"
        '
        'StatusBar1
        '
        Me.StatusBar1.Location = New System.Drawing.Point(0, 207)
        Me.StatusBar1.Name = "StatusBar1"
        Me.StatusBar1.Size = New System.Drawing.Size(456, 22)
        Me.StatusBar1.TabIndex = 5
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(456, 229)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.StatusBar1, Me.Button1, Me.ProgressBar1})
        Me.Name = "Form1"
        Me.Text = "UseProgressBar"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Function Factorial(ByVal Value As Double) As Double
        If (Value = 0) Then
            Factorial = 1.0
            System.Threading.Thread.Sleep(3000)
        Else
            Factorial = Value * Factorial(Math.Ceiling(Value - 1))
        End If
    End Function

    Private Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
        StatusBar1.Text = "Calculating Factorial(10)"
        Factorial(10)
        ProgressBar1.Value = 33

        StatusBar1.Text = "Calculating Factorial(20)"
        Factorial(20)
        ProgressBar1.Value = 66

        StatusBar1.Text = "Calculating Factorial(30)"
        Factorial(30)
        ProgressBar1.Value = 100
        StatusBar1.Text = "Done"
    End Sub
End Class

           
       

Related examples in the same category

1.	ProgressBar control
2.	Progress Bar Demo: set Value and Step