VB.Net Tutorial/GUI/ProgressBar

Four ProgressBars

Imports System.Windows.Forms
public class ProgressBarDemo
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class
Public Class Form1
    Inherits System.Windows.Forms.Form
    Public Sub New()
        MyBase.New()
        InitializeComponent()
    End Sub
    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
    Private components As System.ruponentModel.IContainer
    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 ProgressBar1 As System.Windows.Forms.ProgressBar
    Friend WithEvents ProgressBar2 As System.Windows.Forms.ProgressBar
    Friend WithEvents ProgressBar3 As System.Windows.Forms.ProgressBar
    Friend WithEvents ProgressBar4 As System.Windows.Forms.ProgressBar
    Friend WithEvents Button1 As System.Windows.Forms.Button
    <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.ProgressBar1 = New System.Windows.Forms.ProgressBar
        Me.ProgressBar2 = New System.Windows.Forms.ProgressBar
        Me.ProgressBar3 = New System.Windows.Forms.ProgressBar
        Me.ProgressBar4 = New System.Windows.Forms.ProgressBar
        Me.Button1 = New System.Windows.Forms.Button
        Me.SuspendLayout()
        "
        "Label1
        "
        Me.Label1.Location = New System.Drawing.Point(24, 24)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(40, 24)
        Me.Label1.TabIndex = 0
        "
        "Label2
        "
        Me.Label2.Location = New System.Drawing.Point(24, 56)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(40, 23)
        Me.Label2.TabIndex = 1
        "
        "Label3
        "
        Me.Label3.Location = New System.Drawing.Point(24, 88)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(40, 24)
        Me.Label3.TabIndex = 2
        "
        "Label4
        "
        Me.Label4.Location = New System.Drawing.Point(24, 128)
        Me.Label4.Name = "Label4"
        Me.Label4.Size = New System.Drawing.Size(40, 24)
        Me.Label4.TabIndex = 3
        "
        "ProgressBar1
        "
        Me.ProgressBar1.Location = New System.Drawing.Point(88, 24)
        Me.ProgressBar1.Maximum = 20
        Me.ProgressBar1.Name = "ProgressBar1"
        Me.ProgressBar1.Size = New System.Drawing.Size(176, 16)
        Me.ProgressBar1.TabIndex = 4
        "
        "ProgressBar2
        "
        Me.ProgressBar2.Location = New System.Drawing.Point(88, 56)
        Me.ProgressBar2.Maximum = 20
        Me.ProgressBar2.Name = "ProgressBar2"
        Me.ProgressBar2.Size = New System.Drawing.Size(176, 16)
        Me.ProgressBar2.TabIndex = 5
        "
        "ProgressBar3
        "
        Me.ProgressBar3.Location = New System.Drawing.Point(88, 88)
        Me.ProgressBar3.Maximum = 20
        Me.ProgressBar3.Name = "ProgressBar3"
        Me.ProgressBar3.Size = New System.Drawing.Size(176, 16)
        Me.ProgressBar3.TabIndex = 6
        "
        "ProgressBar4
        "
        Me.ProgressBar4.Location = New System.Drawing.Point(88, 120)
        Me.ProgressBar4.Maximum = 20
        Me.ProgressBar4.Name = "ProgressBar4"
        Me.ProgressBar4.Size = New System.Drawing.Size(176, 16)
        Me.ProgressBar4.TabIndex = 7
        "
        "Button1
        "
        Me.Button1.Location = New System.Drawing.Point(112, 152)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(64, 24)
        Me.Button1.TabIndex = 8
        Me.Button1.Text = "Start"
        "
        "Form1
        "
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 190)
        Me.Controls.Add(Me.Button1)
        Me.Controls.Add(Me.ProgressBar4)
        Me.Controls.Add(Me.ProgressBar3)
        Me.Controls.Add(Me.ProgressBar2)
        Me.Controls.Add(Me.ProgressBar1)
        Me.Controls.Add(Me.Label4)
        Me.Controls.Add(Me.Label3)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.Label1)
        Me.ResumeLayout(False)
    End Sub
    Private temp As Int32
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim i, j, k, l As Int16
        temp = 0
        For i = 0 To 20
            ProgressBar1.Value = i
            Label1.Text = i
            For j = 0 To 20
                ProgressBar2.Value = j
                Label2.Text = j
                For k = 0 To 20
                    ProgressBar3.Value = k
                    Label3.Text = k
                    For l = 0 To 20
                        ProgressBar4.Value = l
                        Label4.Text = l
                        Me.Refresh()
                        temp = temp + 1
                    Next
                Next
            Next
        Next
    End Sub
End Class

ProgressBar value

Imports System.Windows.Forms
public class ProgressBarDemo
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class

Public Class Form1
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim i As Integer
        ProgressBar1.Value = 0
        For i = 0 To 100
        
            Dim j As Integer
            For j = 0 To 10000000
            Next j
        
            ProgressBar1.Value = i
            Label1.Text = i.ToString + "/100"
        Next i
    End Sub
End Class
<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _
Partial Class Form1
    Inherits System.Windows.Forms.Form
    "Form overrides dispose to clean up the component list.
    <System.Diagnostics.DebuggerNonUserCode()> _
    Protected Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing AndAlso components IsNot Nothing Then
            components.Dispose()
        End If
        MyBase.Dispose(disposing)
    End Sub
    "Required by the Windows Form Designer
    Private components As System.ruponentModel.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.
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.ProgressBar1 = New System.Windows.Forms.ProgressBar
        Me.Label1 = New System.Windows.Forms.Label
        Me.Button1 = New System.Windows.Forms.Button
        Me.SuspendLayout()
        "
        "ProgressBar1
        "
        Me.ProgressBar1.Location = New System.Drawing.Point(32, 69)
        Me.ProgressBar1.Name = "ProgressBar1"
        Me.ProgressBar1.Size = New System.Drawing.Size(322, 23)
        Me.ProgressBar1.TabIndex = 0
        "
        "Label1
        "
        Me.Label1.AutoSize = True
        Me.Label1.Location = New System.Drawing.Point(170, 37)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(35, 12)
        Me.Label1.TabIndex = 1
        Me.Label1.Text = "0/100"
        "
        "Button1
        "
        Me.Button1.Location = New System.Drawing.Point(152, 123)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(75, 23)
        Me.Button1.TabIndex = 2
        Me.Button1.Text = "start"
        Me.Button1.UseVisualStyleBackColor = True
        "
        "Form1
        "
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 12.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(383, 181)
        Me.Controls.Add(Me.Button1)
        Me.Controls.Add(Me.Label1)
        Me.Controls.Add(Me.ProgressBar1)
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.ResumeLayout(False)
        Me.PerformLayout()
    End Sub
    Friend WithEvents ProgressBar1 As System.Windows.Forms.ProgressBar
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents Button1 As System.Windows.Forms.Button
End Class

Set step for ProgressBar

Imports System.Windows.Forms
public class ProgressBarStep
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class
Public Class Form1
    Private Sub btnGo_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGo.Click
        ProgressBar1.Step = 21
        ProgressBar1.Value = 0
        btnGo.Enabled = False
        Timer1.Enabled = True
    End Sub
    Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
        ProgressBar1.PerformStep()
        If ProgressBar1.Value >= ProgressBar1.Maximum Then
            Timer1.Enabled = False
            btnGo.Enabled = True
        End If
    End Sub
End Class
<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _
Partial Public Class Form1
    Inherits System.Windows.Forms.Form
    "Form overrides dispose to clean up the component list.
    <System.Diagnostics.DebuggerNonUserCode()> _
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing AndAlso components IsNot Nothing Then
            components.Dispose()
        End If
        MyBase.Dispose(disposing)
    End Sub
    "Required by the Windows Form Designer
    Private components As System.ruponentModel.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.
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.ruponents = New System.ruponentModel.Container
        Me.ProgressBar1 = New System.Windows.Forms.ProgressBar
        Me.btnGo = New System.Windows.Forms.Button
        Me.Timer1 = New System.Windows.Forms.Timer(Me.ruponents)
        Me.SuspendLayout()
        "
        "ProgressBar1
        "
        Me.ProgressBar1.Location = New System.Drawing.Point(16, 48)
        Me.ProgressBar1.Name = "ProgressBar1"
        Me.ProgressBar1.Size = New System.Drawing.Size(248, 16)
        Me.ProgressBar1.TabIndex = 3
        "
        "btnGo
        "
        Me.btnGo.Location = New System.Drawing.Point(16, 16)
        Me.btnGo.Name = "btnGo"
        Me.btnGo.Size = New System.Drawing.Size(48, 24)
        Me.btnGo.TabIndex = 2
        Me.btnGo.Text = "Go"
        "
        "Timer1
        "
        Me.Timer1.Interval = 250
        "
        "Form1
        "
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(282, 86)
        Me.Controls.Add(Me.ProgressBar1)
        Me.Controls.Add(Me.btnGo)
        Me.Name = "Form1"
        Me.Text = "UseProgressBar"
        Me.ResumeLayout(False)
    End Sub
    Friend WithEvents ProgressBar1 As System.Windows.Forms.ProgressBar
    Friend WithEvents btnGo As System.Windows.Forms.Button
    Friend WithEvents Timer1 As System.Windows.Forms.Timer
End Class

Use Timer to control a ProgressBar

Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class TimerControlProgressBar
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class
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.ruponentModel.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 Button1 As System.Windows.Forms.Button
    Friend WithEvents Timer1 As System.Windows.Forms.Timer
    Friend WithEvents ProgressBar1 As System.Windows.Forms.ProgressBar
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.ruponents = New System.ruponentModel.Container
        Me.Button1 = New System.Windows.Forms.Button
        Me.Timer1 = New System.Windows.Forms.Timer(Me.ruponents)
        Me.ProgressBar1 = New System.Windows.Forms.ProgressBar
        Me.SuspendLayout()
        "
        "Button1
        "
        Me.Button1.Location = New System.Drawing.Point(104, 144)
        Me.Button1.Name = "Button1"
        Me.Button1.TabIndex = 1
        Me.Button1.Text = "Go"
        "
        "Timer1
        "
        "
        "ProgressBar1
        "
        Me.ProgressBar1.Location = New System.Drawing.Point(56, 72)
        Me.ProgressBar1.Name = "ProgressBar1"
        Me.ProgressBar1.Size = New System.Drawing.Size(168, 23)
        Me.ProgressBar1.TabIndex = 2
        "
        "Form1
        "
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 273)
        Me.Controls.Add(Me.ProgressBar1)
        Me.Controls.Add(Me.Button1)
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.ResumeLayout(False)
    End Sub
#End Region
    Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
        If ProgressBar1.Value <= ProgressBar1.Maximum - 1 Then
            ProgressBar1.Value += 1
        Else
            Timer1.Enabled = False
        End If
    End Sub
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Timer1.Enabled = True
    End Sub
End Class