[VB.NET] ส่งค่าข้ามฟอร์มได้แล้ว แต่จะกลับมาแก้ไขข้อมูลต้องทำยังไงครับ

Public Class Form1

    Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
        Dim frmForm2 As New Form2
        frmForm2.ShowDialog()
        If frmForm2.DialogResult = Windows.Forms.DialogResult.OK Then
            TextBox1.Text = frmForm3.Listbox1.Text
            TextBox2.Text = frmForm3.ComboBox1.Text
        End If

    End Sub

Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
  Me.DialogResult = DialogResult.OK
    End Sub