private void button2_Click(object sender, EventArgs e)
{
double mulcan = canti_vali();
double subtotal = Convert.ToDouble(costo_esfLabel1.Text) * mulcan;
reg.insertaCompra(id_esferaLabel1, txtcanti, descrip, subtotal, textBox2);
dataGridView1.DataSource = compra.carrito(textBox2);
compra c = new compra();
c.suma(textBox2, lblsub, lbliva, lbltot);
}
private void button1_Click(object sender, EventArgs e)
{
String m = "";
tabControl1.Visible = true;
dataGridView1.DataSource = compra.carrito(id_ventaTextBox);
dataGridView2.DataSource = compra.carrito(id_ventaTextBox);
compra reg = new compra();
reg.person(id_ClienteTextBox, label1);
reg.person(id_ClienteTextBox, label5);
reg.suma(id_ventaTextBox, lblsub, lbliva, lbltot);
m = lblsub.Text;
//MessageBox.Show(m);
label7.Text = m;
// totalLabel1.Text = lblsub.Text;
// reg.suma(id_ventaTextBox, totalLabel1, lbliva, lbltot);
}