C#dataGridView控件增删查改实例

园林工程系统 文档、数据库、源码

鼠标拖动图片，然后图片随着鼠标移动，放开鼠标后 图片则停留在新位置，如下图效果

用于浏览器开发，官方demo，绝对给力

ZPLPrinter 打印例子

C#(WinForm)HTML编辑器 实例源码

【实例简介】一种代码脚本的初始化程序 PCI106E初始化程序说明 通过modbus寄存器reg(0)作为标志位来判断使能情况，上位机判断：    modbus_reg(0) = 1，使能成功，可以进行操作。    modbus_reg(0) = 2，总线扫描失败。    modbus_reg(0) = 3，总线开启失败。    modbus_reg(0) = 4，设备扫描数为0。    非使能成功时，程序每间隔1s重新执行一次。 此初始化程序只进行了总线使能操作，轴的脉冲当量、速度等参数需要在上位机再进行设置。   

根据文件列表，合并文本文件，保持原文件的字符集

C#右下角弹窗提醒 例子源码

实例截图： 部分源码：using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using Lqarpjj.Study.Demo.ADLSTool.Class;using System.Diagnostics;using System.IO;using Microsoft.Win32;namespace Lqarpjj.Study.Demo.ADLSTool{ public partial class frmMain : Form { #region 自定义变量 /// /// 静态变量存储信息的地址文件 /// private static string ADSLPath = Application.StartupPath @"ADSL.ini"; private static string ConnectionsPath = Application.StartupPath @"create.vbs"; /// /// 定义Ini写入对象 /// private IniWrite ini = new IniWrite(ADSLPath); /// /// 判断第一登录 /// private bool IsFirst = true; /// /// /// private MD5.DES.Md5Class md5 = new MD5.DES.Md5Class(); /// /// /// public static string key = null; #endregion /// /// 构造函数 /// public frmMain() { InitializeComponent(); } #region 窗体事件 /// /// 窗体初始 /// /// /// private void frmMain_Load(object sender, EventArgs e) { SetToolTip(); IntiLoad(sender, e); } #endregion #region 控件按钮事件 /// /// 复制账号 /// /// /// private void btnCopyAccount_Click(object sender, EventArgs e) { if (this.chkSpecial.Checked)//判断特殊拨号是否勾选 { //进行加密 UsernameEncode encode = new UsernameEncode(); Clipboard.SetDataObject(encode.EncodeUsername(this.txtAccount.Text, this.txtPassword.Text)); } else { Clipboard.SetDataObject(this.txtAccount.Text); } MessageBox.Show("账号已经复制到剪贴板！", "复制成功"); } /// /// 拨号 /// /// /// private void btnDia_Click(object sender, EventArgs e) { if (this.txtAccount.Text.Trim() == "") { MessageBox.Show("账号不能为空", "输入错误"); txtAccount.Focus(); return; } if (this.txtPassword.Text.Trim() == "") { MessageBox.Show("密码不能为空", "输入错误"); txtPassword.Focus(); return; } this.NetDia(); } /// /// 找不到电话簿？ /// /// /// private void lblNotFind_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e) { this.CreateConnections(); } /// /// 记住账号联动 /// /// /// private void chkRemAccount_CheckedChanged(object sender, EventArgs e) { if (!this.chkRemAccount.Checked) { this.chkRemPassword.Checked = false; } } /// /// 记住密码联动 /// /// /// private void chkRemPassword_CheckedChanged(object sender, EventArgs e) { if (this.chkRemPassword.Checked) { this.chkRemAccount.Checked = true; } } /// /// 自动登录启动 /// /// /// private void AutoConectTimer_Tick(object sender, EventArgs e) { this.AutoConectTimer.Enabled = false; new frmLinkInfo(this).Show(); base.Hide(); } #endregion #region 自定义方法 /// /// 初始登录 /// /// /// private void IntiLoad(object sender, EventArgs e) { FileInfo info = new FileInfo(ADSLPath); try { if (info.Exists) { this.ReadConfig(); } if (this.chkAutoDia.Checked)//是否自动登录 { this.AutoConectTimer.Start(); } } catch (Exception) { File.Delete(ADSLPath); this.frmMain_Load(sender, e); } } /// ///设置控件提示 /// private void SetToolTip() { ToolTip tip = new ToolTip(); tip.BackColor = System.Drawing.Color.Transparent; tip.SetToolTip(this.btnCopyAccount, "复制账号到剪贴板。如果勾选了特殊拨号，复制的则是加密过的账号。"); tip.SetToolTip(this.btnDia, "手动进行拨号。"); tip.SetToolTip(this.chkAutoDia, "勾选后，下次启动将自动拨号。"); tip.SetToolTip(this.chkSpecial, "如果你原本使用协同拨号器拨号，请勾选此项。"); tip.SetToolTip(this.chkRemPassword, "勾选后，将会保存密码信息，同时保存账号信息。"); tip.SetToolTip(this.chkRemAccount, "勾选后，将会保存账号信息，但不会保存密码信息。"); tip.SetToolTip(this.txtPassword, "在这里输入你的密码。如果有字母，有大小写之分。"); tip.SetToolTip(this.lblNotFind, "如果拨号时提示找不到电话簿，请点击这里。"); tip.SetToolTip(this.txtAccount, "在这里输入你的用户名，如果是特殊拨号不分大小写。"); tip.SetToolTip(this.chkAutoClo, "勾选后拨号成功将自动关闭程序，如果拨号失败，则不会自动关闭。"); } /// /// 写入配置信息 /// private void WriteConfig() { this.ini.Writue("用户设置", "记住账号", this.chkRemAccount.Checked.ToString()); this.ini.Writue("用户设置", "记住密码", this.chkRemPassword.Checked.ToString()); this.ini.Writue("用户设置", "特殊拨号", this.chkSpecial.Checked.ToString()); this.ini.Writue("用户设置", "自动连接", this.chkAutoDia.Checked.ToString()); this.ini.Writue("用户设置", "自动关闭", this.chkAutoClo.Checked.ToString()); this.ini.Writue("用户设置", "首次使用", this.IsFirst.ToString()); if (this.chkRemAccount.Checked) { this.ini.Writue("用户信息", "账号", this.md5.Encryption(this.txtAccount.Text)); this.ini.Writue("加密密钥", "账号", key); } if (this.chkRemPassword.Checked) { this.ini.Writue("用户信息", "密码", this.md5.Encryption(this.txtPassword.Text)); this.ini.Writue("加密密钥", "密码", key); } } /// /// 读取配置信息 /// private void ReadConfig() { this.chkRemAccount.Checked = bool.Parse(this.ini.ReadValue("用户设置", "记住账号")); this.chkRemPassword.Checked = bool.Parse(this.ini.ReadValue("用户设置", "记住密码")); this.chkSpecial.Checked = bool.Parse(this.ini.ReadValue("用户设置", "特殊拨号")); this.chkAutoDia.Checked = bool.Parse(this.ini.ReadValue("用户设置", "自动连接")); this.chkAutoClo.Checked = bool.Parse(this.ini.ReadValue("用户设置", "自动关闭")); this.IsFirst = bool.Parse(this.ini.ReadValue("用户设置", "首次使用")); if (this.chkRemAccount.Checked) { this.txtAccount.Text = this.md5.Decryption(this.ini.ReadValue("加密密钥", "账号"), this.ini.ReadValue("用户信息", "账号")); if (this.txtAccount.Text.Trim() == "") { this.txtAccount.Text = null; } } if (this.chkRemPassword.Checked) { this.txtPassword.Text = this.md5.Decryption(this.ini.ReadValue("加密密钥", "密码"), this.ini.ReadValue("用户信息", "密码")); if (this.txtPassword.Text.Trim() == "") { this.txtPassword.Text = null; } } } /// /// 判断是否是第一次使用本软件 /// private void IsFirstUse() { if (this.IsFirst) { if (MessageBox.Show("检测到您是初次使用本软件，是否自动创建一个名为【宽带连接】的连接？如果已经存在，请选否。", "初次使用", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes) { this.CreateConnections(); } this.IsFirst = false; this.WriteConfig(); } } /// /// 连接宽带 /// private void NetDia() { this.IsFirstUse(); new frmLinkInfo(this).Show(); base.Hide(); } /// /// 电话簿 /// private void CreateConnections() { Process[] processArray; StreamWriter writer = new StreamWriter(ConnectionsPath, false, Encoding.Default); writer.Write(this.GetVersion()); writer.Close(); Process process = new Process(); process.StartInfo.FileName = ConnectionsPath; process.StartInfo.CreateNoWindow = true; base.Hide(); process.Start(); process.WaitForExit(); File.Delete(ConnectionsPath); Label_006A: processArray = Process.GetProcesses(); foreach (Process process2 in processArray) { if (process2.ProcessName.ToString() == "rasphone") { goto Label_006A; } } base.Show(); } /// /// 获取版本？ /// /// private string GetVersion() { StringBuilder str = new StringBuilder(); str.Append(""); str.Append("set ws=createobject("wscript.shell") "); str.Append(" ws.run "rasphone -a 宽带连接" "); str.Append(" wscript.sleep 200 "); str.Append(" ws.sendkeys "{t}" "); str.Append(" wscript.sleep 200 "); str.Append(" ws.sendkeys "{n}" "); str.Append(" wscript.sleep 200 "); str.Append(" ws.sendkeys "{enter}" "); str.Append(" wscript.sleep 200 "); str.Append(" ws.sendkeys "{enter}" "); if (Registry.LocalMachine.OpenSubKey(@"SoftwareMicrosoftWindows NTCurrentVersion").GetValue("ProductName").ToString() == "Windows 7 Ultimate") { str.Append(""); str.Append("set ws=createobject("wscript.shell")"); str.Append(" ws.run "rasphone -a 宽带连接""); str.Append(" wscript.sleep 200"); str.Append(" ws.sendkeys "{enter}""); str.Append(" wscript.sleep 200"); str.Append(" ws.sendkeys "{enter}""); } return str.ToString(); } #endregion }}

        private void StopRectTimer_Tick(object sender, EventArgs e)        {            //如果鼠标在窗体上，则根据停靠位置显示整个窗体              if (this.Bounds.Contains(Cursor.Position))            {                switch (this.StopDock)                {                    case AnchorStyles.Top:                        this.Location = new Point(this.Location.X, 0);                        break;                    case AnchorStyles.Bottom:                        this.Location = new Point(this.Location.X, Screen.PrimaryScreen.Bounds.Height - this.Height);                        break;                    case AnchorStyles.Left:                        this.Location = new Point(0, this.Location.Y);                        break;                    case AnchorStyles.Right:                        this.Location = new Point(Screen.PrimaryScreen.Bounds.Width - this.Width, this.Location.Y);                        break;                }            }            else  //如果鼠标离开窗体，则根据停靠位置隐藏窗体，但须留出部分窗体边缘以便鼠标选中窗体              {                switch (this.StopDock)                {                    case AnchorStyles.Top:                        this.Location = new Point(this.Location.X, (this.Height - 3) * (-1));                        break;                    case AnchorStyles.Bottom:                        this.Location = new Point(this.Location.X, Screen.PrimaryScreen.Bounds.Height - 5);                        break;                    case AnchorStyles.Left:                        this.Location = new Point((-1) * (this.Width - 3), this.Location.Y);                        break;                    case AnchorStyles.Right:                        this.Location = new Point(Screen.PrimaryScreen.Bounds.Width - 2, this.Location.Y);                        break;                }            }        }