vb.net DateTimePicker มันไม่ขึ้นเลย Button1.Click DataGridView1.DataSource = Database("SELECT * FROM Sale WHERE dates = " & DateTimePicker1.Value.Date & "").Tables(0)

Public Shared Function Database(ByVal SqlCommand As String) As DataSet
        Dim oConn As OleDbConnection
        Dim oComm As OleDbCommand
        Dim oData As OleDbDataAdapter
        Dim resultSet As New DataSet
        Dim oConnect, oQuery As String

        oConnect = "Provider = Microsoft.JET.OLEDB.4.0; Data Source = Database/Database.mdb"
        oQuery = SqlCommand

        oConn = New OleDbConnection(oConnect)
        oComm = New OleDbCommand(oQuery, oConn)
        oData = New OleDbDataAdapter(oQuery, oConn)

        Try
            oConn.Open()
            oData.Fill(resultSet)
            oConn.Close()
        Catch ex As Exception
            MessageBox.Show(ex.Message, "ข้อผิดพลาด")
        End Try

        Return resultSet
    End Function