Kết nối database trong visual studio

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Connection String isa string with information that allows you to connect with Database from C#. You need to retriave this string. Right click khổng lồ Data Connection just newly created & select Properties

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Data.SqlClient;namespace Tutorial.SqlConn class DBSQLServerUtils public static SqlConnection GetDBConnection(string datasource, string database, string username, string password) // // Data Source=TRAN-VMWARESQLEXPRESS;Initial Catalog=simplehr;Persist Security Info=True;User ID=sa;Password=12345 // string connString =

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"Data Source="+datasource+";Initial Catalog=" +database+";Persist Security Info=True;User ID="+username+";Password="+password; SqlConnection conn = new SqlConnection(connString); return conn;
using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Data.SqlClient;namespace Tutorial.SqlConn class DBUtils public static SqlConnection GetDBConnection() string datasource =
"tran-vmwareSQLEXPRESS"; string database = "simplehr"; string username = "sa"; string password = "1234"; return DBSQLServerUtils.GetDBConnection(datasource, database, username, password);
using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;using Tutorial.SqlConn;using System.Data.SqlClient;namespace ConnectSQLServer class Program static void Main(string<> args) Console.WriteLine("Getting Connection ..."); SqlConnection conn = DBUtils.GetDBConnection(); try Console.WriteLine("Openning Connection ..."); conn.Open(); Console.WriteLine("Connection successful!"); catch (Exception e) Console.WriteLine("Error: " + e.Message); Console.Read();
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