สอบถามเรื่อง Code datagridview คะ ที่เวลาเราคลิกแล้วมันจะมา แอดใน Datagridview เรื่อย ๆเหมือนระบบขายสินค้านะคะ

 Private Sub Btnadditem_Click(sender As System.Object, e As System.EventArgs) Handles Button2.Click
        DataGridView1.ColumnCount = 4
        DataGridView1.Columns(0).Name = "Product ID"
        DataGridView1.Columns(1).Name = "Product Type"
        DataGridView1.Columns(2).Name = "Product_name"
        DataGridView1.Columns(3).Name = "Product_price"
        Dim row As String()
        row = New String() {TextBox2.Text, TextBox3.Text, TextBox4.Text, TextBox5.Text, "10"}
        DataGridView1.Rows.Add(row)
    End Sub

 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Form2.ShowDialog()
        DataGridView1.Rows.Add(Form2.RowSelect)
    End Sub

 Public RowSelect(3) As String
  
    Private Sub ProduceDataGridView_CellContentDoubleClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles ProduceDataGridView.CellContentDoubleClick
        Me.Text = ProduceDataGridView.CurrentRow.Cells(0).Value
        RowSelect(0) = ProduceDataGridView.CurrentRow.Cells(0).Value
        RowSelect(1) = ProduceDataGridView.CurrentRow.Cells(1).Value
        RowSelect(2) = ProduceDataGridView.CurrentRow.Cells(2).Value
        RowSelect(3) = ProduceDataGridView.CurrentRow.Cells(4).Value
        Me.Close()
    End Sub