.NET (Core and Framework)

public void UpdateProduct(Product updated, Category category, Model model)
{
    Product original = _context.Product.FirstOrDefault(a => a.ProductID == updated.ProductID);
    if (category != null && original.ProductCategory.CategoryId != category.CategoryId) original.ProductCategory = category;
    if (model != null && original.ProductModel.ModelID != model.ModelID) original.ProductModel = model;
    _context.Attach(original);
    _context.ApplyPropertyChanges("Product", updated);  
    _context.SaveChanges();
}

If item.Selected = True Then

Private Sub ListView1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListView1.SelectedIndexChanged

        lstestacoes.Clear()
        lstestacoes.View = View.LargeIcon
        Try
            If con.State = ConnectionState.Open Then con.Close()
            lstestacoes.Clear()
            lstestacoes.View = View.LargeIcon
            Dim ind As Integer
            Dim temp As String
            
            For Each item As ListViewItem In ListView1.SelectedItems
                If item.Selected = True Then
                    temp = item.SubItems(0).Text
                    Dim adptr As New OleDbDataAdapter("select * from Estacao WHERE Grupo= '" & temp & "'", con)
                    Dim ds As New DataSet
                    Dim dr As DataRow
                    Dim dt As New DataTable
                    Dim imageListSmall As New ImageList()
                    Dim imageListLarge As New ImageList()

                    Dim grupoquant As Integer
                    Try
                        adptr.Fill(ds, "Grupo")
                        dt = ds.Tables(0)
                       
                        For Each dr In dt.Rows
                           
                          
                    
                            ind = ind + 1
                            Dim i As New ListViewItem(ind)
                            i.Text = dr.Item("Nome")
                            i.ImageIndex = 0
                           
                            lstestacoes.Items.AddRange(New ListViewItem() {i})
             
                        Next

                    Catch ex As Exception
            MsgBox(ex.Message)

        End Try
                End If
            Next
        Catch ex As Exception
            MsgBox(ex.Message)

        End Try


        con.Close()

end sub