Gan, ane mau tanya coding ane apa yang salah, knp gak bisa masuk ke database ya
berikut kodingnya


file staff.cs

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

using System.Data.OleDb;



namespace TestStaff

{

 public partial class Staff : Form

 {

 private OleDbConnection Kei = new OleDbConnection();

 public Staff()

 {

 Kei.ConnectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D://amel ioop//SalonDatabase.accdb;

 Persist Security info=False;";

 InitializeComponent();

 }



 private void groupBox1_Enter(object sender, EventArgs e)

 {



 }





 private void Staff_Load(object sender, EventArgs e)

 {



 }



 private void button1_Click(object sender, EventArgs e)

 {

 new StaffClass().fefefe (Name.Text, DateofBirth.Text, Gender.Text, ICNumber.Text, Email.Text, Mobile.Text, Position.Text);

 }

 }

}

file staffclass.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Data.OleDb;

using System.Windows.Forms;



namespace TestStaff

{



 class StaffClass

 {

 private OleDbConnection connection;

 private OleDbCommand _command;

 private OleDbDataReader _reader;

 private string _NAME, _DOB, _EM, _IC, _GE, _MO, _PO;





 public OleDbConnection Connection

 {

 get

 {

 return connection;

 }

 }

 public OleDbCommand Command

 {

 get

 {

 return _command;

 }

 set

 {

 _command = value;

 }

 }

 public OleDbDataReader Reader

 {

 get

 {

 return _reader;

 }

 set

 {

 _reader = value;

 }

 }

 public string NAME

 {

 get

 {

 return _NAME;

 }

 set

 {

 _NAME = value;

 }

 }

 public string IC

 {

 get

 {

 return _IC;

 }

 set

 {

 _IC = value;

 }

 }

 public string MO

 {

 get

 {

 return _MO;

 }

 set

 {

 _MO = value;

 }

 }

 public string GE

 {

 get

 {

 return _GE;

 }

 set

 {

 _GE = value;

 }

 }



 public string EM

 {

 get

 {

 return _EM;

 }

 set

 {

 _EM = value;

 }

 }

 

 public string PO

 {

 get

 {

 return _PO;

 }

 set

 {

 _PO = value;

 }

 }



 public string DOB

 {

 get

 {

 return _DOB;

 }

 set

 {

 _DOB = value;

 }

 }





 public StaffClass()

 {

 connection = new OleDbConnection();

 connection.ConnectionString = connection.ConnectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=‪D://amel ioop//SalonDatabase.accdb;

 Persist Security Info=False;";

 connection.Open();

 }



 public bool fefefe(string _NAME, string _DOB, string _IC, string _MO, string _GE, string _EM, string _PO)

 {

 try

 {

 OleDbCommand command = new OleDbCommand();

 command.Connection = connection;

 command.CommandText = "insert into Staff (Name, DateofBirth, ICNumber, MobileNumber, Gender, EmailAddress, Position) values (@_NAME, @_DOB, @_IC, @_MO, @_GE, @EM, @_PO)";

 command.Parameters.AddWithValue("@_NAME", NAME);

 command.Parameters.AddWithValue("@_DOB", DOB);

 command.Parameters.AddWithValue("@_IC", IC);

 command.Parameters.AddWithValue("@_MO", MO);

 command.Parameters.AddWithValue("@_GE", GE);

 command.Parameters.AddWithValue("@_EM", EM);

 command.Parameters.AddWithValue("@_PO", PO);

 command.ExecuteNonQuery();

 MessageBox.Show("Data Saved");

 connection.Close();

 }

 catch (Exception ex)

 {

 MessageBox.Show("Error" + ex);

 }

 return true;

 }





 

 }

}