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 { /// <…

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…