winfrom C#树勾选等
AfterCheck
/// <summary> /// 树勾选 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void tvCourse_AfterCheck(object sender, TreeViewEventArgs e) { if (e.Action ==TreeViewAction.ByMouse) { if (e.Node.Checked) { SetChildNode(e.Node, true); if (null!= e.Node.Parent) { SetParentNode(e.Node, true); } //获取选中节点值 lstChapterIds.Add(e.Node.Name); this.btnDelRes.Enabled = true; } else { //取消节点选中状态之后，取消所有父节点的选中状态 SetChildNode(e.Node, false); //如果节点存在父节点，取消父节点的选中状态 if (e.Node.Parent != null) { SetParentNode(e.Node, false); } //获取选中节点值 if (lstChapterIds.Contains(e.Node.Name)) { lstChapterIds.Remove(e.Node.Name); if (!lstChapterIds.Any()) { this.btnDelRes.Enabled = false; } } } } }
设置节点
/// <summary> /// 查找根节点 /// </summary> /// <param name="node">节点node</param> /// <returns></returns> private TreeNode FindParentNode(TreeNode node) { if (node.Parent == null) { return node; } else { return FindParentNode(node); } } /// <summary> /// 设置父节点 /// </summary> /// <param name="node">当前节点</param> /// <param name="state">状态</param> private void SetParentNode(TreeNode node, bool state) { TreeNode pNode = node.Parent; if (null != pNode) { pNode.Checked = state; bool flag = false; foreach (TreeNode currNode in pNode.Nodes) { if (!currNode.Checked) //控制父节点全选,父节点选中去掉! { flag = false; pNode.Checked = flag; break; } //SetParentNode(item, state); } if (pNode.Checked ) { //获取选中节点值 lstChapterIds.Add(pNode.Name); } else { if (lstChapterIds.Contains(pNode.Name)) { lstChapterIds.Remove(pNode.Name); } } SetParentNode(pNode, flag); } } /// <summary> /// 设置子节点 /// </summary> /// <param name="node">当前节点</param> /// <param name="state">状态</param> private void SetChildNode(TreeNode node, bool state) { TreeNodeCollection tncNodes = node.Nodes; if (tncNodes.Count>0) { foreach (TreeNode currNode in tncNodes) { currNode.Checked = state; if (currNode.Checked) { //获取选中节点值 lstChapterIds.Add(currNode.Name); } else { if (lstChapterIds.Contains(currNode.Name)) { lstChapterIds.Remove(currNode.Name); } } SetChildNode(currNode, state); } } }
程序只开一个：program.cs
bool createdNew = false; System.Threading.Mutex instance = new System.Threading.Mutex(true, Application.ProductName, out createdNew); if (createdNew) { //...........code instance.ReleaseMutex(); } else { MessageBox.Show("该程序已经在运行！", Application.ProductName,MessageBoxButtons.OK, MessageBoxIcon.Exclamation); Application.Exit(); }
委托 不同线程间访问控件
private delegate void UploadPro(int mProgre); private event UploadPro UploadProEvent; UploadProEvent +=ResourceManage_UploadProEvent; void ResourceManage_UploadProEvent(int mProgree) { //...... } var thread = new Thread(new ThreadStart(method)); thread.Start();
this.Invoke(UploadProEvent,currentPro);
解压缩 文件
ZipInputStream inputStream = new ZipInputStream(File.OpenRead(strFilePath)); ZipEntry theEntry; //读取文件名 List<string> fileNameList = new List<string>(); while ((theEntry = inputStream.GetNextEntry()) != null) { totalSize += theEntry.UncompressedSize; string templateName = theEntry.FileName; string fileName = Path.GetFileName(templateName); if (!string.IsNullOrEmpty(fileName)) fileNameList.Add(fileName); } inputStream.Close(); #region 解压文件 inputStream = new ZipInputStream(File.OpenRead(filePath)); //long totalSize = inputStream.Length; long currentSize = 0; int currentPro = 0; ZipEntry theEntry; ZipFile zf = ZipFile.Read(filePath); //以文件流来解压所有文件，同时计算进度 while ((theEntry = inputStream.GetNextEntry()) != null) { //totalSize += theEntry.UncompressedSize; //long totalSize = theEntry.UncompressedSize; //destPath += "/"; //string templateName = theEntry.FileName; //string fileName = Path.GetFileName(templateName); ////string dir = Path.GetDirectoryName(templateName); //string dir = templateName; //if (!dir.Contains("\\") && string.IsNullOrEmpty(fileName)) //{ // continue; //} ////截取目录文件夹 //if (dir.Contains("\\")) // dir = dir.Substring(dir.IndexOf("\\") + 1, dir.Length - dir.IndexOf("\\") - 1); //if (templateName.Length == (dir + "/" + fileName).Length) dir = ""; ////theEntry.IsDirectory 是否目录 //string path = Path.GetDirectoryName(destPath) + "/" + dir + "/"; ////Path.GetDirectoryName(baseDir) + "/";// //if (!Directory.Exists(path)) // Directory.CreateDirectory(path); string strFilePath = string.Empty; string templateName = theEntry.FileName; if (!templateName.Contains("\\")) { //文件 strFilePath = destPath + "\\" + theEntry.FileName; } else { //文件夹里文件 strFilePath = destPath + theEntry.FileName; } if (!Directory.Exists(Path.GetDirectoryName(strFilePath))) { Directory.CreateDirectory(Path.GetDirectoryName(strFilePath)); } string fileName = Path.GetFileName(templateName); if (fileName != String.Empty) { FileStream streamWriter = File.OpenWrite(strFilePath); //解压文件到指定的目录 int size = 0; byte[] data = new byte[2048]; try { while (true) { size = inputStream.Read(data, 0, data.Length); if (size > 0) { streamWriter.Write(data, 0, size); currentSize += size; } else { break; } currentPro = Convert.ToInt32(100 * currentSize / totalSize); this.Invoke(UploadProEvent,currentPro); } } catch (Exception ex) { LogHelper.Error(this.GetType(), ex); this.Invoke(UploadProEvent, -1); //-1 导入失败 } finally { streamWriter.Close(); } } } inputStream.Close(); #endregion
检查指导文件盘符，获取空间大盘符
/// <summary> /// 检查指导盘符剩余空间 /// </summary> /// <param name="str_HardDiskName"></param> /// <returns></returns> public static long GetHardDiskFreeSpace(string str_HardDiskName) { if (string.IsNullOrEmpty(str_HardDiskName)) return 0; long freeSpace = new long(); System.IO.DriveInfo[] drives = System.IO.DriveInfo.GetDrives(); foreach (System.IO.DriveInfo drive in drives) { if (drive.Name == str_HardDiskName) { freeSpace = drive.TotalFreeSpace; } } return freeSpace; } /// <summary> /// 找出当前客户端剩余空间最大盘符 /// </summary> /// <returns></returns> public static Dictionary<string, long> GetSystemDirtory() { Dictionary<string, long> freeSpace = new Dictionary<string, long>(); DriveInfo[] drives = DriveInfo.GetDrives(); foreach (DriveInfo drive in drives) { if (drive.DriveType == DriveType.Fixed) freeSpace.Add(drive.Name, drive.TotalFreeSpace); } string hardDiskName = freeSpace.ToArray().Max(x => x.Key); long hardDiskSize = freeSpace.ToArray().Max(x => x.Value); freeSpace.Clear(); freeSpace.Add(hardDiskName, hardDiskSize); return freeSpace; }
获取MAC地址
/// <summary> /// 获取网卡MAC地址 /// </summary> /// <returns></returns> public static string GetNetCardMAC() { try { string stringMAC = ""; ManagementClass MC = new ManagementClass("Win32_NetworkAdapterConfiguration"); ManagementObjectCollection MOC = MC.GetInstances(); foreach (ManagementObject MO in MOC) { if ((bool)MO["IPEnabled"] == true) { stringMAC += MO["MACAddress"].ToString(); } } return stringMAC; } catch { return ""; } }
获取远程文件信息
/// <summary> /// 获取远程文件信息 /// </summary> /// <param name="url"></param> /// <returns></returns> public static RemoteFileInfo GetFileInfo(string url) { RemoteFileInfo result = new RemoteFileInfo(); try { GC.Collect(); HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); HttpWebResponse response = (HttpWebResponse)request.GetResponse(); result.MimeType = response.ContentType; result.LastModified = response.LastModified; result.FileSize = response.ContentLength; result.AcceptRanges = String.Compare(response.Headers["Accept-Ranges"], "bytes", true) == 0; //关闭连接 response.Close(); request.KeepAlive = false; } catch (Exception ex) { throw; } return result; }
错误日志
#region 日志方法 public void LogTest(string str) { string path = System.IO.Directory.GetCurrentDirectory() + "\\log\\"; if (!Directory.Exists(path)) { DirectoryInfo directorylnfo = new DirectoryInfo(path); directorylnfo.Create(); } string dt = "\r\n时间：" + DateTime.Now.ToString("yyyymmddhhmmss") + "\r\n内容：" + str; int len = dt.Length; byte[] inputByts = new byte[len]; inputByts = Encoding.GetEncoding("utf-8").GetBytes(dt); System.IO.FileStream fs = new System.IO.FileStream(path + "log.txt", System.IO.FileMode.OpenOrCreate); fs.Seek(0, System.IO.SeekOrigin.End); fs.Write(inputByts, 0, inputByts.Length); fs.Close();//关闭流 } #endregion
/// <summary> /// 错误日志 /// </summary> /// <param name="errorMsg"></param> public static void WriteLog(Exception ex) { string logPath = GetResDir() + "/log"; string message = string.Format("\r\n\r\n异常时间：{0} \r\n错误源：{1} \r\n异常信息：{2}", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss,fff"), ex.Source, ex.Message); File.AppendAllText(logPath + DateTime.Now.ToString("yyyy.MM.dd") + ".log", message, Encoding.UTF8); }
启动停止服务
/// <summary> /// 启动服务sc.DisplayName /// </summary> /// <param name="serverName"></param> public static void StartService(string serverName) { if (string.IsNullOrEmpty(serverName)) return; ServiceController sc = new ServiceController(serverName); if (sc.DisplayName != null) { if (sc.Status == ServiceControllerStatus.Stopped) sc.Start(); } } /// <summary> /// 停止服务 /// </summary> /// <param name="serverName"></param> public static void StopService(string serverName) { if (string.IsNullOrEmpty(serverName)) return; ServiceController sc = new ServiceController(serverName); if (sc.DisplayName != null) { if (sc.Status == ServiceControllerStatus.Running) sc.Stop(); } }
插入修改表数据
public string InsertORupdateData<T>(List<T> _list, string dtName,string columnName) { StringBuilder sbInsert = new StringBuilder(); ArrayList list = new ArrayList(); try { string sqlstr = ""; if (_list != null && _list.Count > 0) { System.Reflection.PropertyInfo[] p = _list[0].GetType().GetProperties(); int length = 0; string values = ""; for (int i = 0; i < _list.Count; i++) { string sbUpdateSql = ""; int count = 0; string upwh = ""; length = 0; //通过反射获取list中的字段 foreach (System.Reflection.PropertyInfo pi in p) { string cName = pi.Name; string cValue = (pi.GetValue(_list[i], null) == null ? "" : (pi.GetValue(_list[i], null)).ToString().Replace("'", "")); //替换 '语法错误的 if (cName.ToLower() == columnName.ToLower()) { string sql = "select count(0) from " + dtName + " where " + columnName + "='"+cValue+"'"; upwh = " where " + columnName + "='" + cValue + "'"; count = ExcelHelper.GetScalar(sql); } if (length == 0) { sqlstr = "INSERT INTO " + dtName + " ("; values = "("; sbUpdateSql+="update " + dtName + " set "; } length += 1; if (length < p.Length) { sbUpdateSql += cName + "= '" + cValue +"',"; sqlstr += cName + ","; values += "'" + cValue + "',"; } else { sbUpdateSql += cName + "= '" + cValue + "'"; sqlstr += cName + ") Values"; values += "'" + cValue + "'); "; if (count > 0) { sqlstr = sbUpdateSql + upwh; values = ""; } } } sqlstr += values; list.Add(sqlstr); } } //for (int i = 0; i < list.Count; i++) //{ // ArrayList arrList = new ArrayList(); // arrList.Add(list[i]); // var result = AccessDbHelper.ExecuteSqlTran(arrList); //} //string str = string.Join("", list.ToArray()); var result = AccessDbHelper.ExecuteSqlTran(list); return "success"; } catch (Exception err) { LogTest(err.ToString()); return err.ToString(); } }
