是否有必要使用使用Dispose连接，如果在MS Access数据库中使用DbContext dapper，则打开和关闭连接 vb.net

问：

如果在 vb.net 上的 MS access 数据库中使用 DbContext dapper，是否有必要使用处置连接、打开和关闭连接。

这是我第一次使用 dapper，请指导我，以便在执行 crud 时没有错误，并在 oledb 数据库访问中有效地使用 Dapper。 而且我担心在实现我的代码时有错误。

谢谢

'model
Public Class User
        Public Property Id() As Integer
        Public Property Name() As String
        Public Property Email() As String
        Public Property Password() As String
    End Class

'Database
  Public Module DbContext
        Public Function GetOledbConnectionString() As String
            Return "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|\dapperdemo.accdb;Persist Security Info=False;"
        End Function
    End Module

 Public Class UserService
        Private ReadOnly _conn As OleDbConnection
        Private _connectionString As String = DbContext.GetOledbConnectionString()
        Public Sub New()
            _conn = New OleDbConnection(_connectionString)
        End Sub
        Public Function GetUser() As IEnumerable(Of User)
            Dim sql = "SELECT * FROM Users"
            Dim result = Me._conn.Query(Of User)(sql).ToList()
            Return result
        End Function
        Public Sub InserUser(ByVal user As User)
            Dim sql = $"INSERT INTO `users` (`Name`, `Email`, `Password`) VALUES ('{user.Name}', '{user.Email}', '{user.Password}');"
            Me._conn.Execute(sql)
        End Sub

'form load in datagridview
 Partial Public Class Pguser
        Inherits UserControl
        Private uService As New Database.UserService()
        Public Sub New()
            If Program.IsInDesignMode(Me) Then
                Return
            End If
            InitializeComponent()
            LoadData()
        End Sub
        Private Sub LoadData()
            Dim user = uService.GetUser()
            grid.DataSource = user
        End Sub
    End Class