private void продатьЖивотноеToolStripMenuItem_Click(object sender, EventArgs e)
{
frmSale sale = new frmSale(myConnection, User_Name,dgvPets);
this.Hide();
sale.Show(this);
}
private void btShop_Click(object sender, EventArgs e)
{
frmSale sale = new frmSale(myConnection, User_Name, dgvp);
this.Hide();
sale.Show(this);
}