it's not clear how you are storing your data.
i am storing date in list collection only .i don't want to save the list of barcode permanently in the database

i simple want user will write no of barcode as much as he want in the text box .because we are retail Co .here and as usual we are checking a list of barcode .when
new shipment has come from the foreign. i am simple taking a list of barcode in toad and checking with sql statment .whether this barcode is available
in oracle RMS .if not available whe are creating that one by insert statement .so i simple want here to write all the barcode in the text box .and when
user click on button it shows in attached way .so that i simple copy from the delimeted text from the second text box.and write in in clause of select statment .instead of
manually do it one by one .First,i have been trying to implement .why it says system.strings. when i press the button .first i want to test in winform of vb.net before test in c#.
Code:
Public Class Form1
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim Mydelimeter As New List(Of String)
        Dim x() As String = Split(TextBox1.Text, vbCrLf)
        For i As Integer = 0 To x.Count - 1
            Mydelimeter.Add("'" & x.ToString & "',")
        Next
        'For Each DEL In Mydelimeter
        '    MessageBox.Show(DEL)
        'Next

        For i As Integer = Mydelimeter.Count - 1 To 0 Step -1
            'Console.WriteLine(Mydelimeter(i))
            MessageBox.Show(Mydelimeter(i))
        Next i

    End Sub
End Class
Issue.jpg