private void button5_Click(object sender, EventArgs e)
 {
     if (ModelNameA.Text.Equals("") || BuyCost.Text.Equals("") || InterStorage.Text.Equals("") || ScreenSize.Text.Equals("") || ModelSerial.Text.Equals("") || SecondaryCam.Text.Equals("") || SellCost.Text.Equals("") || Ram.Text.Equals("") || PrimaryCam.Text.Equals("") || CPU.Text.Equals("") || BuyCost.Text.Equals(""))
     {
         MessageBox.Show("Please, Fill The Tnput Fields");
     }
     else
     {
         businesslayer bl = new businesslayer();
         bl.InsertModel(ModelSerial.Text, ModelNameA.Text, BuyCost.Text, SellCost.Text, Ram.Text, CPU.Text, InterStorage.Text, ScreenSize.Text, PrimaryCam.Text, SecondaryCam.Text, CompanyName.Text);
         LoadAutoCompleteTextBoxes();
     }
 }
        private void button3_Click(object sender, EventArgs e)
        {
            businesslayer b1 = new businesslayer();

            b1.InsertModel(ModelNameA.Text, CompNameA.Text, BuyCost.Text, CPU.Text, ScreenSize.Text, MobileSerialA.Text, SecondaryCam.Text, SellCost.Text, Ram.Text, PrimaryCam.Text, CompanyName.Text);
        }