winform身份证号批量生成器

winform 刻录光盘实例

该实例用多种方式实现了根据用户输入自动完成的功能，是开发时较为常用的智能提示方法

json可以将某对象转换为字符串，然后发送给对方。对方收到后直接再转换成对象。推荐Newtonjson这个转换类，

主要是将文字转换成语音文件，并可以存储为wav文件，利用的是win7自带语音库

身份证验证器，可以得到该身份证的性别、地区、生日等信息

.Net版本的 Ucenter整合方案

使用方法： 初始化这个列表头 DatagridViewCheckBoxHeaderCell cbHeader = new DatagridViewCheckBoxHeaderCell(); cbHeader.Value = ""; SelectUin.HeaderCell = cbHeader; cbHeader.OnCheckBoxClicked = new CheckBoxClickedHandler(cbHeader_OnCheckBoxClicked); 填写你的全选的业务逻辑 void cbHeader_OnCheckBoxClicked(bool Status) { for (int i = 0; i < this.dataGridView1.Rows.Count; i ) { dataGridView1.Rows[i].Cells["SelectUin"].Value = Status; } }

优选方案是：PredicateExtensions  很方便，很强大 调用示例：public static void Test3() { DbDataContext db = new DbDataContext(); Expression expressleft = PredicateExtensions.True(); expressleft = expressleft.Or(t => t.CategoriesID > 3); Expression expressright = PredicateExtensions.False(); expressright = expressright.Or(t => t.CategoriesID < 5); expressleft = expressleft.And(expressright); var sql = db.GetCommand(db.TemplateDocument.Where(expressleft).Select(t => new { t.TemplateID, t.TemplateName, t.CategoriesID })).CommandText; Console.WriteLine(sql); }

[实例简介] 连接sql数据库 类 [核心代码]using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Configuration;using System.Data.SqlClient;using System.Data; namespace Itcast.Cn{ public static class SqlHelper { private static readonly string conStr = ConfigurationManager.ConnectionStrings["connStr"].ConnectionString; //执行增删改的 public static int ExecuteNonQuery(string sql, CommandType cmdType, params SqlParameter[] pms) { using (SqlConnection con = new SqlConnection(conStr)) { using (SqlCommand cmd = new SqlCommand(sql, con)) { cmd.CommandType = cmdType; if (pms != null) { cmd.Parameters.AddRange(pms); } con.Open(); return cmd.ExecuteNonQuery(); } } } //封装一个执行返回单个值的方法 public static object ExecuteScalar(string sql, CommandType cmdType, params SqlParameter[] pms) { using (SqlConnection con = new SqlConnection(conStr)) { using (SqlCommand cmd = new SqlCommand(sql, con)) { cmd.CommandType = cmdType; if (pms != null) { cmd.Parameters.AddRange(pms); } con.Open(); return cmd.ExecuteScalar(); } } } //返回SqlDataReader对象的方法 public static SqlDataReader ExecuteReader(string sql, CommandType cmdType, params SqlParameter[] pms) { SqlConnection con = new SqlConnection(conStr); using (SqlCommand cmd = new SqlCommand(sql, con)) { cmd.CommandType = cmdType; if (pms != null) { cmd.Parameters.AddRange(pms); } try { con.Open(); return cmd.ExecuteReader(CommandBehavior.CloseConnection); } catch (Exception) { con.Close(); con.Dispose(); throw; } } } //封装一个返回DataTable的方法 public static DataTable ExecuteDataTable(string sql, CommandType cmdType, params SqlParameter[] pms) { DataTable dt = new DataTable(); using (SqlDataAdapter adapter = new SqlDataAdapter(sql, conStr)) { adapter.SelectCommand.CommandType = cmdType; if (pms != null) { adapter.SelectCommand.Parameters.AddRange(pms); } adapter.Fill(dt); } return dt; } //封装一个带事务的执行Sql语句的方法 public static void ExecuteNonQueryTran(List list) { using (SqlConnection con = new SqlConnection(conStr)) { using (SqlCommand cmd = con.CreateCommand()) { con.Open(); using (SqlTransaction trans = con.BeginTransaction()) { cmd.Transaction = trans; try { foreach (var SqlObject in list) { cmd.CommandText = SqlObject.Sql; if (SqlObject.Parameters != null) { cmd.Parameters.AddRange(SqlObject.Parameters); } cmd.CommandType = SqlObject.CmdType; cmd.ExecuteNonQuery(); cmd.Parameters.Clear(); } trans.Commit(); } catch (Exception) { trans.Rollback(); } } } } } } public class SqlAndParameter { public string Sql { get; set; } public SqlParameter[] Parameters { get; set; } public CommandType CmdType { get; set; } }}

Md5加密实例