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筆記8:winfrom連線資料庫DBHelp

 1 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 庫存管理系統
10 {
11     class DBHelf
12     {
13         //增刪改
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 //查詢 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 }