Imports System.ComponentModel Public Class Form1 ' 23-12-2010 First Release ' 28-12-2010 Added sub init Public x1(10, 10), y1(10, 10), z1(10, 10) Public x2(10, 10), y2(10, 10), z2(10, 10) Public x3(10, 10), y3(10, 10), z3(10, 10) Public x4(10, 10), y4(10, 10), z4(10, 10) Public itercnt(4), seccnt(4), totalp(4) As Integer Public np, lnp As Integer Public load1 As Integer Public Sub New() InitializeComponent() InitForm() InitForm() BackgroundWorkerpp1.WorkerReportsProgress = True BackgroundWorkerpp1.WorkerSupportsCancellation = True BackgroundWorkerpp2.WorkerReportsProgress = True BackgroundWorkerpp2.WorkerSupportsCancellation = True BackgroundWorkerpp3.WorkerReportsProgress = True BackgroundWorkerpp3.WorkerSupportsCancellation = True BackgroundWorkerpp4.WorkerReportsProgress = True BackgroundWorkerpp4.WorkerSupportsCancellation = True ResultLabelpp1.Text = " " ResultLabelpp2.Text = " " ResultLabelpp3.Text = " " ResultLabelpp4.Text = " " End Sub Private Sub startAsyncButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles StartAsyncButton.Click Dim a As String If BackgroundWorkerpp1.IsBusy <> True Then ' Start the asynchronous operation. BackgroundWorkerpp1.RunWorkerAsync() np = 1 ProcTpp1.Text = 1 Else If BackgroundWorkerpp2.IsBusy <> True Then ' Start the asynchronous operation. BackgroundWorkerpp2.RunWorkerAsync() np = 2 ProcTpp2.Text = 2 Else If BackgroundWorkerpp3.IsBusy <> True Then ' Start the asynchronous operation. BackgroundWorkerpp3.RunWorkerAsync() np = 3 ProcTpp3.Text = 3 Else If BackgroundWorkerpp4.IsBusy <> True Then ' Start the asynchronous operation. BackgroundWorkerpp4.RunWorkerAsync() np = 4 ProcTpp4.Text = 4 End If End If End If End If nProcT.Text = np For i = 0 To 4 itercnt(i) = -1 : seccnt(i) = -1 Next a = LoadT.Text : load1 = Val(a) ' Load loop counter If load1 = 0 Then load1 = 1 End Sub Private Sub cancelAsyncButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CancelAsyncButton.Click Dim a As String If BackgroundWorkerpp1.WorkerSupportsCancellation = True And np = 1 Then ' Cancel the asynchronous operation. BackgroundWorkerpp1.CancelAsync() np = 0 ProcTpp1.Text = " " End If If BackgroundWorkerpp2.WorkerSupportsCancellation = True And np = 2 Then ' Cancel the asynchronous operation. BackgroundWorkerpp2.CancelAsync() np = 1 ProcTpp2.Text = " " End If If BackgroundWorkerpp3.WorkerSupportsCancellation = True And np = 3 Then ' Cancel the asynchronous operation. BackgroundWorkerpp3.CancelAsync() ProcTpp3.Text = " " np = 2 End If If BackgroundWorkerpp4.WorkerSupportsCancellation = True And np = 4 Then ' Cancel the asynchronous operation. BackgroundWorkerpp4.CancelAsync() np = 3 ProcTpp4.Text = " " End If nProcT.Text = np For i = 0 To 4 itercnt(i) = -1 : seccnt(i) = -1 Next a = LoadT.Text : load1 = Val(a) ' Load loop counter If load1 = 0 Then load1 = 1 End Sub Private Sub EndSyncButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles EndAsyncButton.Click Debug.Print("Click End") End End Sub ' This event handler 1 is where the time-consuming work is done. Private Sub backgroundWorkerpp1_DoWork(ByVal sender As System.Object, _ ByVal e As DoWorkEventArgs) Handles BackgroundWorkerpp1.DoWork Dim worker As BackgroundWorker = CType(sender, BackgroundWorker) Dim i As Integer Dim sec1, sec2 As Integer Dim a As String sec1 = Second(Now) a = LoadT.Text : load1 = Val(a) ' Load loop counter If load1 = 0 Then load1 = 1 Debug.Print("PP1 Load " + Str(load1)) Do itercnt(1) = itercnt(1) + 1 For ip = 1 To load1 For i = 0 To 10 For j = 0 To 10 x1(i, j) = y1(i, j) + z1(i, j) Next Next Next ip If (worker.CancellationPending = True) Then e.Cancel = True totalp(1) = 0 Exit Sub Else ' Perform a time consuming operation and report progress. sec2 = Second(Now) If sec2 <> sec1 Then System.Threading.Thread.Sleep(1) sec1 = Second(Now) seccnt(1) = seccnt(1) + 1 If seccnt(1) <= 0 Then itercnt(1) = 0 worker.ReportProgress(0) Else totalp(1) = itercnt(1) / seccnt(1) worker.ReportProgress(totalp(1)) End If End If End If Loop End Sub ' This event handler 1 updates the progress. Private Sub backgroundWorkerpp1_ProgressChanged(ByVal sender As System.Object, _ ByVal e As ProgressChangedEventArgs) Handles BackgroundWorkerpp1.ProgressChanged ResultLabelpp1.Text = (e.ProgressPercentage.ToString()) TotalL.Text = Str(totalp(1) + totalp(2) + totalp(3) + totalp(4)) seccntT.Text = Str(seccnt(1)) End Sub ' This event handler 1 deals with the results of the background operation. Private Sub backgroundWorkerpp1_RunWorkerCompleted(ByVal sender As System.Object, _ ByVal e As RunWorkerCompletedEventArgs) Handles BackgroundWorkerpp1.RunWorkerCompleted If e.Cancelled = True Then ResultLabelpp1.Text = "Canceled!" ElseIf e.Error IsNot Nothing Then ResultLabelpp1.Text = "Error: " & e.Error.Message Else ResultLabelpp1.Text = "Done!" End If End Sub ' This event handler 2 is where the time-consuming work is done. Private Sub backgroundWorkerpp2_DoWork(ByVal sender As System.Object, ByVal e As DoWorkEventArgs) Handles BackgroundWorkerpp2.DoWork Dim worker As BackgroundWorker = CType(sender, BackgroundWorker) Dim i As Integer Dim sec1 As Integer : Dim sec2 As Integer sec1 = Second(Now) Do itercnt(2) = itercnt(2) + 1 For ip = 1 To load1 For i = 0 To 10 For j = 0 To 10 x2(i, j) = y2(i, j) + z2(i, j) Next Next Next ip If (worker.CancellationPending = True) Then e.Cancel = True totalp(2) = 0 Exit Sub Else ' Perform a time consuming operation and report progress. sec2 = Second(Now) If sec2 <> sec1 Then System.Threading.Thread.Sleep(1) sec1 = Second(Now) seccnt(2) = seccnt(2) + 1 If seccnt(2) <= 0 Then itercnt(2) = 0 worker.ReportProgress(0) Else totalp(2) = itercnt(2) / seccnt(2) worker.ReportProgress(totalp(2)) End If End If End If Loop End Sub ' This event handler 2 updates the progress. Private Sub backgroundWorkerpp2_ProgressChanged(ByVal sender As System.Object, _ ByVal e As ProgressChangedEventArgs) Handles BackgroundWorkerpp2.ProgressChanged ResultLabelpp2.Text = (e.ProgressPercentage.ToString()) End Sub ' This event handler 2 deals with the results of the background operation. Private Sub backgroundWorkerpp2_RunWorkerCompleted(ByVal sender As System.Object, _ ByVal e As RunWorkerCompletedEventArgs) Handles BackgroundWorkerpp2.RunWorkerCompleted If e.Cancelled = True Then ResultLabelpp2.Text = "Canceled!" ElseIf e.Error IsNot Nothing Then ResultLabelpp2.Text = "Error: " & e.Error.Message Else ResultLabelpp2.Text = "Done!" End If End Sub ' This event handler 3 is where the time-consuming work is done. Private Sub backgroundWorkerpp3_DoWork(ByVal sender As System.Object, _ ByVal e As DoWorkEventArgs) Handles BackgroundWorkerpp3.DoWork Dim worker As BackgroundWorker = CType(sender, BackgroundWorker) Dim i As Integer Dim sec1 As Integer : Dim sec2 As Integer sec1 = Second(Now) Do itercnt(3) = itercnt(3) + 1 For ip = 1 To load1 For i = 0 To 10 For j = 0 To 10 x3(i, j) = y3(i, j) + z3(i, j) Next Next Next ip If (worker.CancellationPending = True) Then e.Cancel = True totalp(3) = 0 Exit Sub Else ' Perform a time consuming operation and report progress. sec2 = Second(Now) If sec2 <> sec1 Then System.Threading.Thread.Sleep(1) sec1 = Second(Now) seccnt(3) = seccnt(3) + 1 If seccnt(3) <= 0 Then itercnt(3) = 0 worker.ReportProgress(0) Else totalp(3) = itercnt(3) / seccnt(3) worker.ReportProgress(totalp(3)) End If End If End If Loop End Sub ' This event handler 3 updates the progress. Private Sub backgroundWorkerpp3_ProgressChanged(ByVal sender As System.Object, _ ByVal e As ProgressChangedEventArgs) Handles BackgroundWorkerpp3.ProgressChanged ResultLabelpp3.Text = (e.ProgressPercentage.ToString()) End Sub ' This event handler 3 deals with the results of the background operation. Private Sub backgroundWorkerpp3_RunWorkerCompleted(ByVal sender As System.Object, _ ByVal e As RunWorkerCompletedEventArgs) Handles BackgroundWorkerpp3.RunWorkerCompleted If e.Cancelled = True Then ResultLabelpp3.Text = "Canceled!" ElseIf e.Error IsNot Nothing Then ResultLabelpp3.Text = "Error: " & e.Error.Message Else ResultLabelpp3.Text = "Done!" End If End Sub ' This event handler 4 is where the time-consuming work is done. Private Sub backgroundWorkerpp4_DoWork(ByVal sender As System.Object, ByVal e As DoWorkEventArgs) Handles BackgroundWorkerpp4.DoWork Dim worker As BackgroundWorker = CType(sender, BackgroundWorker) Dim i As Integer Dim sec1 As Integer : Dim sec2 As Integer sec1 = Second(Now) Do itercnt(4) = itercnt(4) + 1 For ip = 1 To load1 For i = 0 To 10 For j = 0 To 10 x4(i, j) = y4(i, j) + z4(i, j) Next Next Next ip If (worker.CancellationPending = True) Then e.Cancel = True totalp(4) = 0 Exit Sub Else ' Perform a time consuming operation and report progress. sec2 = Second(Now) If sec2 <> sec1 Then System.Threading.Thread.Sleep(1) sec1 = Second(Now) seccnt(4) = seccnt(4) + 1 If seccnt(4) <= 0 Then itercnt(4) = 0 worker.ReportProgress(0) Else totalp(4) = itercnt(4) / seccnt(4) worker.ReportProgress(totalp(4)) End If End If End If Loop End Sub ' This event handler 4 updates the progress. Private Sub backgroundWorkerpp4_ProgressChanged(ByVal sender As System.Object, _ ByVal e As ProgressChangedEventArgs) Handles BackgroundWorkerpp4.ProgressChanged ResultLabelpp4.Text = (e.ProgressPercentage.ToString()) End Sub ' This event handler 4 deals with the results of the background operation. Private Sub backgroundWorkerpp4_RunWorkerCompleted(ByVal sender As System.Object, _ ByVal e As RunWorkerCompletedEventArgs) Handles BackgroundWorkerpp4.RunWorkerCompleted If e.Cancelled = True Then ResultLabelpp4.Text = "Canceled!" ElseIf e.Error IsNot Nothing Then ResultLabelpp4.Text = "Error: " & e.Error.Message Else ResultLabelpp4.Text = "Done!" End If End Sub Sub Init() For i = 0 To 10 For j = 0 To 10 y1(i, j) = (i + 1) / (j + 1) : z1(i, j) = 3.14 / y1(i, j) y2(i, j) = (i + 1) / (j + 1) : z2(i, j) = 3.14 / y2(i, j) y3(i, j) = (i + 1) / (j + 1) : z3(i, j) = 3.14 / y3(i, j) y4(i, j) = (i + 1) / (j + 1) : z4(i, j) = 3.14 / y4(i, j) Next Next End Sub Sub InitForm() Dim hh, dhh As Integer Dim dd, ddd As Integer ' 'Row 1 ' hh = 12 : dhh = 34 Me.procnL.BorderStyle = System.Windows.Forms.BorderStyle.None Me.procnL.Location = New System.Drawing.Point(3, hh) Me.procnL.Name = "ProcnL" Me.procnL.Size = New System.Drawing.Size(39, 13) Me.procnL.TabIndex = 10 Me.procnL.Text = "Proc #" Me.procnL.TextAlign = System.Drawing.ContentAlignment.TopLeft dd = 60 : ddd = 70 Me.ProcTpp1.Location = New System.Drawing.Point(dd, hh) Me.ProcTpp1.Name = "ProcTpp1" Me.ProcTpp1.Size = New System.Drawing.Size(64, 20) Me.ProcTpp1.TabIndex = 11 Me.ProcTpp1.Text = "" dd = dd + ddd Me.ProcTpp2.Location = New System.Drawing.Point(dd, hh) Me.ProcTpp2.Name = "ProcTpp2" Me.ProcTpp2.Size = New System.Drawing.Size(64, 20) Me.ProcTpp2.TabIndex = 12 Me.ProcTpp2.Text = "" dd = dd + ddd Me.ProcTpp3.Location = New System.Drawing.Point(dd, hh) Me.ProcTpp3.Name = "ProcTpp3" Me.ProcTpp3.Size = New System.Drawing.Size(64, 20) Me.ProcTpp3.TabIndex = 13 Me.ProcTpp3.Text = "" dd = dd + ddd Me.ProcTpp4.Location = New System.Drawing.Point(dd, hh) Me.ProcTpp4.Name = "ProcTpp4" Me.ProcTpp4.Size = New System.Drawing.Size(64, 20) Me.ProcTpp4.TabIndex = 14 Me.ProcTpp4.Text = "" dd = dd + ddd Me.TotalT.Location = New System.Drawing.Point(dd, hh) Me.TotalT.Name = "TotalT" Me.TotalT.Size = New System.Drawing.Size(64, 20) Me.TotalT.TabIndex = 15 Me.TotalT.Text = "Total" ' 'Row 2 ' hh = hh + dhh Me.Label2.BorderStyle = System.Windows.Forms.BorderStyle.None Me.Label2.Location = New System.Drawing.Point(3, hh) Me.Label2.Name = "Label2" Me.Label2.Size = New System.Drawing.Size(67, 13) Me.Label2.TabIndex = 16 Me.Label2.Text = "Performance" Me.Label2.TextAlign = System.Drawing.ContentAlignment.TopLeft dd = 85 Me.ResultLabelpp1.BorderStyle = System.Windows.Forms.BorderStyle.None Me.ResultLabelpp1.Location = New System.Drawing.Point(dd, hh) Me.ResultLabelpp1.Name = "ResultLabelpp1" Me.ResultLabelpp1.Size = New System.Drawing.Size(70, 13) Me.ResultLabelpp1.TabIndex = 3 Me.ResultLabelpp1.Text = "pp1" Me.ResultLabelpp1.TextAlign = System.Drawing.ContentAlignment.TopLeft dd = dd + ddd Me.ResultLabelpp2.BorderStyle = System.Windows.Forms.BorderStyle.None Me.ResultLabelpp2.Location = New System.Drawing.Point(dd, hh) Me.ResultLabelpp2.Name = "ResultLabelpp2" Me.ResultLabelpp2.Size = New System.Drawing.Size(60, 13) Me.ResultLabelpp2.TabIndex = 3 Me.ResultLabelpp2.Text = "pp2" Me.ResultLabelpp2.TextAlign = System.Drawing.ContentAlignment.TopLeft dd = dd + ddd Me.ResultLabelpp3.BorderStyle = System.Windows.Forms.BorderStyle.None Me.ResultLabelpp3.Location = New System.Drawing.Point(dd, hh) Me.ResultLabelpp3.Name = "ResultLabelpp3" Me.ResultLabelpp3.Size = New System.Drawing.Size(70, 13) Me.ResultLabelpp3.TabIndex = 3 Me.ResultLabelpp3.Text = "pp3" Me.ResultLabelpp3.TextAlign = System.Drawing.ContentAlignment.TopLeft dd = dd + ddd Me.ResultLabelpp4.BorderStyle = System.Windows.Forms.BorderStyle.None Me.ResultLabelpp4.Location = New System.Drawing.Point(dd, hh) Me.ResultLabelpp4.Name = "ResultLabelpp4" Me.ResultLabelpp4.Size = New System.Drawing.Size(60, 13) Me.ResultLabelpp4.TabIndex = 3 Me.ResultLabelpp4.Text = "pp4" Me.ResultLabelpp4.TextAlign = System.Drawing.ContentAlignment.TopLeft dd = dd + ddd Me.TotalL.BorderStyle = System.Windows.Forms.BorderStyle.None Me.TotalL.Location = New System.Drawing.Point(dd, hh) Me.TotalL.Name = "TotalL" Me.TotalL.Size = New System.Drawing.Size(70, 13) Me.TotalL.TabIndex = 3 Me.TotalL.Text = "Total" Me.TotalL.TextAlign = System.Drawing.ContentAlignment.TopLeft ' 'Row 3 ' dd = 80 : ddd = 100 hh = hh + dhh Me.nProcL.BorderStyle = System.Windows.Forms.BorderStyle.None Me.nProcL.Location = New System.Drawing.Point(dd - 40, hh) Me.nProcL.Name = "nProcL" Me.nProcL.Size = New System.Drawing.Size(55, 13) Me.nProcL.TabIndex = 3 Me.nProcL.Text = "# Proc" Me.nProcL.TextAlign = System.Drawing.ContentAlignment.TopRight Me.NProcT.Location = New System.Drawing.Point(dd, hh) Me.NProcT.Name = "nProcT" Me.NProcT.Size = New System.Drawing.Size(40, 20) Me.NProcT.TabIndex = 3 Me.NProcT.Text = "0" Me.NProcT.TextAlign = System.Drawing.ContentAlignment.TopLeft ' = right dd = dd + ddd Me.LoadL.BorderStyle = System.Windows.Forms.BorderStyle.None Me.LoadL.Location = New System.Drawing.Point(dd - 40, hh) Me.LoadL.Name = "LloadL" Me.LoadL.Size = New System.Drawing.Size(55, 13) Me.LoadL.TabIndex = 3 Me.LoadL.Text = "Load" Me.LoadL.TextAlign = System.Drawing.ContentAlignment.TopRight Me.loadT.Location = New System.Drawing.Point(dd, hh) Me.loadT.Name = "loadT" Me.loadT.Size = New System.Drawing.Size(40, 20) Me.loadT.TabIndex = 3 Me.LoadT.Text = "1" Me.loadT.TextAlign = System.Drawing.ContentAlignment.TopLeft ' = right dd = dd + ddd Me.seccntL.BorderStyle = System.Windows.Forms.BorderStyle.None Me.seccntL.Location = New System.Drawing.Point(dd - 40, hh) Me.seccntL.Name = "seccntL" Me.seccntL.Size = New System.Drawing.Size(55, 13) Me.seccntL.TabIndex = 3 Me.seccntL.Text = "sec" Me.seccntL.TextAlign = System.Drawing.ContentAlignment.TopRight Me.seccntT.Location = New System.Drawing.Point(dd, hh) Me.seccntT.Name = "seccntT" Me.seccntT.Size = New System.Drawing.Size(40, 20) Me.seccntT.TabIndex = 3 Me.seccntT.Text = "1" 'Me.seccntT.TextAlign = System.Drawing.ContentAlignment.TopRight Me.seccntT.TextAlign = System.Drawing.ContentAlignment.TopLeft ' = right ' ' row 4 startAsyncButton cancelAsyncButton endAsyncButton ' dd = 60 hh = hh + dhh Me.StartAsyncButton.Location = New System.Drawing.Point(dd, hh) Me.StartAsyncButton.Name = "startAsyncButton" Me.StartAsyncButton.Size = New System.Drawing.Size(63, 25) Me.StartAsyncButton.TabIndex = 0 Me.StartAsyncButton.Text = "Start" dd = dd + ddd Me.CancelAsyncButton.Enabled = True Me.CancelAsyncButton.Location = New System.Drawing.Point(dd, hh) Me.CancelAsyncButton.Name = "cancelAsyncButton" Me.CancelAsyncButton.Size = New System.Drawing.Size(63, 25) Me.CancelAsyncButton.TabIndex = 1 Me.CancelAsyncButton.Text = "Cancel" dd = dd + ddd Me.endAsyncButton.Location = New System.Drawing.Point(dd, hh) Me.endAsyncButton.Name = "EndAsyncButton" Me.endAsyncButton.Size = New System.Drawing.Size(63, 25) Me.endAsyncButton.TabIndex = 2 Me.endAsyncButton.Text = "End" ' Form1 dd = dd + ddd : hh = hh + dhh Me.ClientSize = New System.Drawing.Size(dd + 50, hh) End Sub End Class