发布网友 发布时间:2022-04-08 21:50
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懂视网 时间:2022-04-09 02:11
using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5 using System.Data.Sql; 6 using System.Data.SqlClient; 7 using System.Data; 8 9 namespace 库存管理系统 10 { 11 class DBHelf 12 { 13 //增删改 14 public int sqlDS(String sql) 15 { 16 string Conn = "server=.;integrated security=true;database=GoodsManager"; 17 SqlConnection sqlconn = new SqlConnection(Conn); 18 SqlCommand sqlcomm = new SqlCommand(sql, sqlconn); 19 20 sqlconn.Open(); 21 int i = sqlcomm.ExecuteNonQuery(); 22 sqlconn.Close(); 23 return i; 24 } 25 //查询 26 public DataTable sqlCha(string sql) 27 { 28 DataTable table = new DataTable(); 29 string Conn = "server=.;integrated security=true;database=GoodsManager"; 30 SqlConnection sqlconn = new SqlConnection(Conn); 31 SqlCommand sqlcomm = new SqlCommand(sql, sqlconn); 32 33 SqlDataAdapter da = new SqlDataAdapter(sqlcomm); 34 da.Fill(table); 35 return table; 36 } 37 } 38 }
笔记8:winfrom连接数据库DBHelp
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热心网友 时间:2022-04-08 23:19
在定义一个静态的DBHelper类用于数据库连接,