public class SQLHelper { //获取连接字符串,,引用Configurationl类库,并引用命名空间using System.Configuration; private static string connStr = ConfigurationManager.ConnectionStrings["dbConnStr"].ConnectionString; //ExecuteNonQuery方法,,,非查询的方法 public static int Execut

一,微软SQLHelper.cs类 中文版: using System; using System.Data; using System.Xml; using System.Data.SqlClient; using System.Collections; namespace Classbao.Data { /// <summary> /// SqlServer数据访问帮助类 /// </summary> public sealed partial class SqlHelper

using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Configuration; using System.Data; using System.Data.SqlClient; using System.Xml; using System.Collections; namespace LiuYanBanT { public class SqlHelper

using System; using System.Data; using System.Xml; using System.Data.SqlClient; using System.Collections; using System.Configuration; //微软SQLHelper.cs类 中文版 namespace Sales.DAL { /// <summary> /// SqlServer数据访问帮助类 /// </summary> public sealed c

SQLHelper.cs using System; using System.Data; using System.Configuration; using System.Data.SqlClient; namespace DAL { public class SQLHelper { #region 私有字段 //获取连接字符串 private static string ConString = ConfigurationManager.ConnectionStrings["ConString

自用SqlHelper.cs类,此类来自软谋教育徐老师课程SqlHelper.cs! using System; using System.Collections; using System.Collections.Generic; using System.Configuration; using System.Data; using System.Data.SqlClient; using System.Linq; using System.Web; namespace PROJECT201

public static class SqlHelper { public static object FromDbValue(object value) { if (value == DBNull.Value) { return null; } else { return value; } } public static object ToDbValue(object value) { if (value == null) { return DBNull.Value; } else { re

using System; using System.Data; using System.Xml; using System.Data.SqlClient; using System.Collections; using System.Configuration; namespace BookDAL { /// <summary> /// SqlServer数据访问帮助类 /// </summary> public sealed class SqlHelper { #region

using System; using System.Collections.Generic; using System.Text; using System.Collections; using System.Data; using System.Data.SqlClient; using System.Configuration; namespace HelloWinForm.DBUtility { class SQLHelper { #region 通用方法 // 数据连接池 privat

using System; using System.Collections.Generic; using System.Text; using System.Configuration; using System.Data; using System.Data.SqlClient; using System.Collections; using System.Data.Common; namespace SWDataDB.DAL { public class SQLHelper { /// <

1.Repeater用来显示数据.ListView用来操作数据 InsertItemTemplate和updateItemTemplate**Eval(显示数据)和Bind(双向绑定:不仅是需要展现,更需要把数据绑定到数据库中) ItemPlaceholderID:占位符,决定占位,把头部(之上)和尾部(之下)分隔开ItemTemplate:展示功能 自动生成的ListView需要调整的地方(1.生成的样式要提到style中,不要用内联的方式(2.ItemTemplate里面一半没必要用<asp

转载自:http://blog.csdn.net/fengqingtao2008/article/details/17399247 using System; using System.Data; using System.Xml; using System.Data.SqlClient; using System.Collections; using System.Configuration; namespace BookDAL { /// <summary> /// SqlServer数据

using System; using System.Collections.Generic; using System.Configuration; using System.Data; using System.Data.SqlClient; using System.Linq; using System.Text; using System.Threading.Tasks;   namespace RuPengWang.DAL {     public class SqlHelper   

using System; using System.Data; using System.Xml; using System.Data.SqlClient; using System.Collections; using System.Configuration; namespace BookDAL { /// <summary> /// SqlServer数据访问帮助类 /// </summary> public sealed class SqlHelper { #region

在自学杨中科老师的视频教学时,拓展编写SqlHelper使用,在将ExecuteReader方法封装进而读取数据库中的数据时 会产生Additional information: 阅读器关闭时尝试调用 Read 无效问题,错误产生时,我的代码如下: SqlHelper.cs代码如下: public static SqlDataReader ExecuteReader(string sql)         {             using (SqlConnection conn = new

这是sqlHelper.cs类,类内里封装了方法 using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Data; using System.Data.SqlClient; using System.Configuration; /// <summary> ///sqlHelper 的摘要说明 /// </summary> public cl

SqlHelper.cs public static class SqlHelper { private static readonly string conStr = ConfigurationManager.ConnectionStrings["sql"].ConnectionString; public static int ExecuteNonQuery(string sql, CommandType cmdType, params SqlParameter[] pms) {

SqlHelper这是个cs类文件,将经常使用到的数据库操作写到一个文件下,方便调用,以及减少代码量.使用这个文件的前提是要建立一个app.config文件,并且引用configuration程序集:其中app.config文件如下: <configuration>  <connectionStrings>//配置字符串 //connectionString后面引号里面的是数据库连接字符串,起名为DBconnStr,在SqlHelper中将需要用到 <add name=&qu

代码 Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> 1 // =============================================================================== // Microsoft Data Access Application Block for .NET // http://m