private void frmProductImageEdit_Load(object sender, EventArgs e)
        {
            Product product = new Product();

            cmbProduct.DataSource    = product.Select().Tables[0];
            cmbProduct.DisplayMember = "name";
            cmbProduct.ValueMember   = "id";

            productImage.SelectById();

            cmbProduct.SelectedValue = productImage.ProductId;
            txtTitle.Text            = productImage.Title;
            productImage.Image       = productImage.Image;
        }
        public frmProductImageEdit(int id)
        {
            InitializeComponent();
            Product product = new Product();

            cmbProduct.DataSource    = product.Select().Tables[0];
            cmbProduct.DisplayMember = "name";
            cmbProduct.ValueMember   = "id";
            //cmbProduct.SelectedValue = -1;

            productImage.Id = id;

            if (productImage.SelectById())
            {
                txtTitle.Text            = productImage.Title;
                pbImage.Image            = FileImage.ImageFromByte(productImage.Image);
                cmbProduct.SelectedValue = productImage.ProductId;
            }
            else
            {
                MessageBox.Show(productImage.Error);
            }
        }