更好的方法来阻止线程。

本文介绍了更好的方法来阻止线程。的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 29岁程序员，3月因学历无情被辞！ 正在开发Windows应用程序。它通过serialport读取数据并放入excel表格。 完成后该线程应被杀死/停止。 这里是代码：按钮点击。 private void Download_Click（ object sender，EventArgs e） { textBox2.Text = fName; p = 2 ; fName = @ C：\STL \Download \Download _ + DateTime .Now.ToString（ dd MMM yy HH mm）。修剪（）+ 。xls; progressBar2.Visible = true ; serialPort1.WriteLine（ $ GET， + textBox3.Text。 ToString（）+ ，0，＃）; 线程downloadThread = new 线程（ new ThreadStart（threadDownload））; downloadThread.Start（）; } 和线程方法是： public void threadDownload（） { 尝试 { Excel.Application xlApp = 默认（Excel.Application）; Excel.Workbook xlWorkBook = 默认（Excel.Workbook）; Excel.Worksheet xlWorkSheet = 默认（Excel.Worksheet）; object misValue = System.Reflection.Missing.Value; xlApp = new Excel.Application（）; xlWorkBook = xlApp.Workbooks.Add（misValue）; xlWorkSheet =（Excel.Worksheet）xlWorkBook.Worksheets.get_Item（ 1 ）; xlWorkSheet.Cells [ 1 ， 1 ] = 机器ID; xlWorkSheet.Cells [ 1 ， 2 ] = 客户ID; xlWorkSheet.Cells [ 1 ， 3 ] = 名称; xlWorkSheet.Cells [ 1 ， 4 ] = 总余额; xlWorkSheet.Cells [ 1 ， 5 ] = 付费金额; xlWorkSheet.Cells [ 1 ， 6 ] = 上次付款日期; xlWorkSheet.Cells [ 1 ， 7 ] = 到期金额; // String machineID = textBox3.Text.ToString（）; if （textBox3.InvokeRequired） { textBox3.Invoke（ new MethodInvoker（ delegate {machId = textBox3.Text;}））; } s = null ; // int drows = 0; xlWorkSheet.Cells [ 1 ， 1 ]。Interior.ColorIndex = 39 ; xlWorkSheet.Cells [ 1 ， 2 ]。Interior.ColorIndex = 39 ; xlWorkSheet.Cells [ 1 ， 3 ]。Interior.ColorIndex = 39 ; xlWorkSheet.Cells [ 1 ， 4 ]。Interior.ColorIndex = 39 ; xlWorkSheet.Cells [ 1 ， 5 ]。Interior.ColorIndex = 39 ; xlWorkSheet.Cells [ 1 ， 6 ]。Interior.ColorIndex = 39 ; xlWorkSheet.Cells [ 1 ， 7 ]。Interior.ColorIndex = 39 ; while （ true ） { run .WaitOne（）; s = System.Text.ASCIIEncoding.ASCII.GetString（buffer）; string [] lines = Regex.Split（s， [$＃，]）; int resp = Convert.ToInt32（行[ 2 ]）; int totalrows = Convert.ToInt32（行[ 4 ]）; int m = 100 / totalrows; if （resp == 0 && p < = totalrows + 1 ） { for （ int q = 1 ; q < = 7 ; q ++） { if （q == 1 ）（（Microsoft.Office.Interop.Excel.Range）xlWorkSheet.Cells [p，q]）。Value2 = lines [ 1 ]; if （q == 2 ）（（Microsoft.Office.Interop .Excel.Range）xlWorkSheet.Cells [p，q]）。Value2 = lines [ 5 ]; if （q == 3 ）（（Microsoft.Office.Interop .Excel.Range）xlWorkSheet.Cells [p，q]）。Value2 = lines [ 6 ]; if （q == 4 ）（（Microsoft.Office.Interop .Excel.Range）xlWorkSheet.Cells [p，q]）。Value2 = lines [ 7 ]; if （q == 5 ）（（Microsoft.Office.Interop .Excel.Range）xlWorkSheet.Cells [p，q]）。Value2 = lines [ 8 ]; if （q == 6 ）（（Microsoft.Office.Interop .Excel.Range）xlWorkSheet.Cells [p，q]）。Value2 = lines [ 9 ]; if （q == 7 ）（（Microsoft.Office.Interop .Excel.Range）xlWorkSheet.Cells [p，q]）。Value2 = lines [ 10 ]; } progressBar2.Invoke（（MethodInvoker）委托 { if （progressBar2.Value < 100 ） progressBar2 .Value + = m; }）; downrows = p - 1 ; serialPort1.WriteLine（ $ GET， + machId + ， + downrows + ，＃）; p ++; } else { if （MessageBox .Show（ 交易已停止， 通知，MessageBoxButtons.OK）== DialogResult.OK） { progressBar2.Invoke（（MethodInvoker） 委托 { progressBar2.Value = 0 ; }）; return ; } } 如果（行[ 3 ]。等于（行[ 4 ]）） { serialPort1.WriteLine（ $ GET， + machId + ，65535，＃）; progressBar2.Invoke（（MethodInvoker）委托 { progressBar2.Value = 100 ; }）; break ; } else if （p > totalrows + 1 ） break ; // drows ++; } xlWorkBook.SaveAs（fName，Excel.XlFileFormat.xlWorkbookNormal，misValue，misValue，misValue，misValue，Excel.XlSaveAsAccessMode.xlExclusive，misValue，misValue，misValue，misValue，misValue）; xlWorkBook.Close（ true ，misValue，misValue）; xlApp.Quit（）; releaseObject（xlWorkSheet）; releaseObject（xlWorkBook）; releaseObject（xlApp）; } // 尝试 catch （例外p） { MessageBox.Show（p.StackTrace）; } 最后 { 如果（xlApp！= null ） releaseObject（xlApp）; if （xlWorkBook！= null ） releaseObject（xlWorkBook）; if （xlWorkSheet！= null ） releaseObject（xlWorkSheet）; } if （System.IO.File.Exists（fName）） { if （MessageBox.Show（ 你想打开excel文件吗？ ， this .Text，MessageBoxButtons.YesNo，MessageBoxIcon.Question）== DialogResult.Yes） { try { System.Diagnostics.Process.Start（fName）; } catch （Exception ex） { MessageBox.Show（ 打开excel文件时出错。 + Environment.NewLine + ex.Message，这个 .Text，MessageBoxButtons.OK，MessageBoxIcon.Error）; } } } } 解决方案 GET， + textBox3.Text.ToString（）+ ，0，＃）; 线程downloadThread = new 线程（ new ThreadStart（threadDownload））; downloadThread.Start（）; } 和线程方法是： public void threadDownload（） { try { Excel.Application xlApp = default （Excel.Application）; Excel.Workbook xlWorkBook = default （Excel.Workbook）; Excel.Worksheet xlWorkSheet = 默认（Excel.Worksheet）; object misValue = System.Reflection.Missing.Value; xlApp = new Excel.Application（）; xlWorkBook = xlApp.Workbooks.Add（misValue）; xlWorkSheet =（Excel.Worksheet）xlWorkBook.Worksheets.get_Item（ 1 ）; xlWorkSheet.Cells [ 1 ， 1 ] = 机器ID; xlWorkSheet.Cells [ 1 ， 2 ] = 客户ID; xlWorkSheet.Cells [ 1 ， 3 ] = 名称; xlWorkSheet.Cells [ 1 ， 4 ] = 总余额; xlWorkSheet.Cells [ 1 ， 5 ] = 付费金额; xlWorkSheet.Cells [ 1 ， 6 ] = 上次付款日期; xlWorkSheet.Cells [ 1 ， 7 ] = 到期金额; // String machineID = textBox3.Text.ToString（）; if （textBox3.InvokeRequired） { textBox3.Invoke（ new MethodInvoker（ delegate {machId = textBox3.Text;}））; } s = null ; // int drows = 0; xlWorkSheet.Cells [ 1 ， 1 ]。Interior.ColorIndex = 39 ; xlWorkSheet.Cells [ 1 ， 2 ]。Interior.ColorIndex = 39 ; xlWorkSheet.Cells [ 1 ， 3 ]。Interior.ColorIndex = 39 ; xlWorkSheet.Cells [ 1 ， 4 ]。Interior.ColorIndex = 39 ; xlWorkSheet.Cells [ 1 ， 5 ]。Interior.ColorIndex = 39 ; xlWorkSheet.Cells [ 1 ， 6 ]。Interior.ColorIndex = 39 ; xlWorkSheet.Cells [ 1 ， 7 ]。Interior.ColorIndex = 39 ; while （ true ） { run .WaitOne（）; s = System.Text.ASCIIEncoding.ASCII.GetString（buffer）; string [] lines = Regex.Split（s， ＃，]）; int resp = Convert.ToInt32（行[ 2 ]）; int totalrows = Convert.ToInt32（行[ 4 ]）; int m = 100 / totalrows; if （resp == 0 && p < = totalrows + 1 ） { for （ int q = 1 ; q < = 7 ; q ++） { if （q == 1 ）（（Microsoft.Office.Interop.Excel.Range）xlWorkSheet.Cells [p，q]）。Value2 = lines [ 1 ]; if （q == 2 ）（（Microsoft.Office.Interop .Excel.Range）xlWorkSheet.Cells [p，q]）。Value2 = lines [ 5 ]; if （q == 3 ）（（Microsoft.Office.Interop .Excel.Range）xlWorkSheet.Cells [p，q]）。Value2 = lines [ 6 ]; if （q == 4 ）（（Microsoft.Office.Interop .Excel.Range）xlWorkSheet.Cells [p，q]）。Value2 = lines [ 7 ]; if （q == 5 ）（（Microsoft.Office.Interop .Excel.Range）xlWorkSheet.Cells [p，q]）。Value2 = lines [ 8 ]; if （q == 6 ）（（Microsoft.Office.Interop .Excel.Range）xlWorkSheet.Cells [p，q]）。Value2 = lines [ 9 ]; if （q == 7 ）（（Microsoft.Office.Interop .Excel.Range）xlWorkSheet.Cells [p，q]）。Value2 = lines [ 10 ]; } progressBar2.Invoke（（MethodInvoker）委托 { if （progressBar2.Value < 100 ） progressBar2 .Value + = m; }）; downrows = p - 1 ; serialPort1.WriteLine（ GET， + machId + ， + downrows + ，＃）; p ++; } else { if （MessageBox .Show（ 交易已停止， 通知，MessageBoxButtons.OK）== DialogResult.OK） { progressBar2.Invoke（（MethodInvoker） 委托 { progressBar2.Value = 0 ; }）; return ; } } 如果（行[ 3 ]。等于（行[ 4 ]）） { serialPort1.WriteLine（ Hi,am developing windows application. it reads data through serialport and places into excel sheet.after completion that thread should be killed/stopped.here is the code :for button click.private void Download_Click(object sender, EventArgs e) { textBox2.Text = fName; p = 2; fName = @"C:\STL\Download\Download_" + DateTime.Now.ToString("dd MMM yy HH mm").Trim() + ".xls "; progressBar2.Visible = true; serialPort1.WriteLine("$GET,"+textBox3.Text.ToString()+",0,#"); Thread downloadThread = new Thread(new ThreadStart(threadDownload)); downloadThread.Start(); }and thread method is:public void threadDownload(){ try { Excel.Application xlApp = default(Excel.Application); Excel.Workbook xlWorkBook = default(Excel.Workbook); Excel.Worksheet xlWorkSheet = default(Excel.Worksheet); object misValue = System.Reflection.Missing.Value; xlApp = new Excel.Application(); xlWorkBook = xlApp.Workbooks.Add(misValue); xlWorkSheet = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item(1); xlWorkSheet.Cells[1, 1] = "Machine ID"; xlWorkSheet.Cells[1, 2] = "Customer ID"; xlWorkSheet.Cells[1, 3] = "Name"; xlWorkSheet.Cells[1, 4] = "Total Balance"; xlWorkSheet.Cells[1, 5] = "Paid Amount"; xlWorkSheet.Cells[1, 6] = "Last Paid Date"; xlWorkSheet.Cells[1, 7] = "Due Amount"; // String machineID = textBox3.Text.ToString(); if (textBox3.InvokeRequired) { textBox3.Invoke(new MethodInvoker(delegate { machId = textBox3.Text; })); } s = null; // int drows = 0; xlWorkSheet.Cells[1, 1].Interior.ColorIndex = 39; xlWorkSheet.Cells[1, 2].Interior.ColorIndex = 39; xlWorkSheet.Cells[1, 3].Interior.ColorIndex = 39; xlWorkSheet.Cells[1, 4].Interior.ColorIndex = 39; xlWorkSheet.Cells[1, 5].Interior.ColorIndex = 39; xlWorkSheet.Cells[1, 6].Interior.ColorIndex = 39; xlWorkSheet.Cells[1, 7].Interior.ColorIndex = 39; while (true) { run.WaitOne(); s = System.Text.ASCIIEncoding.ASCII.GetString(buffer); string[] lines = Regex.Split(s, "[$#,]"); int resp = Convert.ToInt32(lines[2]); int totalrows = Convert.ToInt32(lines[4]); int m = 100 / totalrows; if (resp == 0 && p <= totalrows + 1) { for (int q = 1; q <= 7; q++) { if (q == 1) ((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[p, q]).Value2 = lines[1]; if (q == 2) ((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[p, q]).Value2 = lines[5]; if (q == 3) ((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[p, q]).Value2 = lines[6]; if (q == 4) ((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[p, q]).Value2 = lines[7]; if (q == 5) ((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[p, q]).Value2 = lines[8]; if (q == 6) ((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[p, q]).Value2 = lines[9]; if (q == 7) ((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[p, q]).Value2 = lines[10]; } progressBar2.Invoke((MethodInvoker)delegate { if (progressBar2.Value < 100) progressBar2.Value += m; }); downrows = p - 1; serialPort1.WriteLine("$GET," + machId + "," + downrows + ",#"); p++; } else { if (MessageBox.Show("Transaction has been stopped", "Notification", MessageBoxButtons.OK) == DialogResult.OK) { progressBar2.Invoke((MethodInvoker)delegate { progressBar2.Value = 0; }); return; } } if (lines[3].Equals(lines[4])) { serialPort1.WriteLine("$GET," + machId + ",65535,#"); progressBar2.Invoke((MethodInvoker)delegate { progressBar2.Value = 100; }); break; } else if (p > totalrows + 1) break; // drows++; } xlWorkBook.SaveAs(fName, Excel.XlFileFormat.xlWorkbookNormal, misValue, misValue, misValue, misValue, Excel.XlSaveAsAccessMode.xlExclusive, misValue, misValue, misValue, misValue, misValue); xlWorkBook.Close(true, misValue, misValue); xlApp.Quit(); releaseObject(xlWorkSheet); releaseObject(xlWorkBook); releaseObject(xlApp); }//try catch (Exception p) { MessageBox.Show(p.StackTrace); } finally { if (xlApp != null) releaseObject(xlApp); if (xlWorkBook != null) releaseObject(xlWorkBook); if (xlWorkSheet != null) releaseObject(xlWorkSheet); } if (System.IO.File.Exists(fName)) { if (MessageBox.Show("Would you like to open the excel file?", this.Text, MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes) { try { System.Diagnostics.Process.Start(fName); } catch (Exception ex) { MessageBox.Show("Error opening the excel file." + Environment.NewLine + ex.Message, this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error); } } }} 解决方案 GET,"+textBox3.Text.ToString()+",0,#"); Thread downloadThread = new Thread(new ThreadStart(threadDownload)); downloadThread.Start(); }and thread method is:public void threadDownload(){ try { Excel.Application xlApp = default(Excel.Application); Excel.Workbook xlWorkBook = default(Excel.Workbook); Excel.Worksheet xlWorkSheet = default(Excel.Worksheet); object misValue = System.Reflection.Missing.Value; xlApp = new Excel.Application(); xlWorkBook = xlApp.Workbooks.Add(misValue); xlWorkSheet = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item(1); xlWorkSheet.Cells[1, 1] = "Machine ID"; xlWorkSheet.Cells[1, 2] = "Customer ID"; xlWorkSheet.Cells[1, 3] = "Name"; xlWorkSheet.Cells[1, 4] = "Total Balance"; xlWorkSheet.Cells[1, 5] = "Paid Amount"; xlWorkSheet.Cells[1, 6] = "Last Paid Date"; xlWorkSheet.Cells[1, 7] = "Due Amount"; // String machineID = textBox3.Text.ToString(); if (textBox3.InvokeRequired) { textBox3.Invoke(new MethodInvoker(delegate { machId = textBox3.Text; })); } s = null; // int drows = 0; xlWorkSheet.Cells[1, 1].Interior.ColorIndex = 39; xlWorkSheet.Cells[1, 2].Interior.ColorIndex = 39; xlWorkSheet.Cells[1, 3].Interior.ColorIndex = 39; xlWorkSheet.Cells[1, 4].Interior.ColorIndex = 39; xlWorkSheet.Cells[1, 5].Interior.ColorIndex = 39; xlWorkSheet.Cells[1, 6].Interior.ColorIndex = 39; xlWorkSheet.Cells[1, 7].Interior.ColorIndex = 39; while (true) { run.WaitOne(); s = System.Text.ASCIIEncoding.ASCII.GetString(buffer); string[] lines = Regex.Split(s, "#,]"); int resp = Convert.ToInt32(lines[2]); int totalrows = Convert.ToInt32(lines[4]); int m = 100 / totalrows; if (resp == 0 && p <= totalrows + 1) { for (int q = 1; q <= 7; q++) { if (q == 1) ((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[p, q]).Value2 = lines[1]; if (q == 2) ((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[p, q]).Value2 = lines[5]; if (q == 3) ((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[p, q]).Value2 = lines[6]; if (q == 4) ((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[p, q]).Value2 = lines[7]; if (q == 5) ((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[p, q]).Value2 = lines[8]; if (q == 6) ((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[p, q]).Value2 = lines[9]; if (q == 7) ((Microsoft.Office.Interop.Excel.Range)xlWorkSheet.Cells[p, q]).Value2 = lines[10]; } progressBar2.Invoke((MethodInvoker)delegate { if (progressBar2.Value < 100) progressBar2.Value += m; }); downrows = p - 1; serialPort1.WriteLine("GET," + machId + "," + downrows + ",#"); p++; } else { if (MessageBox.Show("Transaction has been stopped", "Notification", MessageBoxButtons.OK) == DialogResult.OK) { progressBar2.Invoke((MethodInvoker)delegate { progressBar2.Value = 0; }); return; } } if (lines[3].Equals(lines[4])) { serialPort1.WriteLine(" 这篇关于更好的方法来阻止线程。的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 阿里云证书，YYDS！