Pizza app order v1

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class frmMain : Form
    {
        public frmMain()
        {
            InitializeComponent();
        }

        public double pret = 0;
        public short aux = 0;

        private void Form1_Load(object sender, EventArgs e)
        {
            pnlComanda.Visible = false;
            pnlMain.Visible = true;
            pnlMeniu.Visible = false;
            pnlMeniu.Location = pnlMain.Location;
            pnlMeniu.Size = pnlMain.Size;
            pnlComanda.Location = pnlMain.Location;
            pnlComanda.Size = pnlMain.Size;
            lbBack.Visible = false;
            lstpreturi.Visible = false;
            pnlDespre.Size = pnlMain.Size;
            pnlDespre.Location = pnlMain.Location;
        }

        private void lbBack_Click(object sender, EventArgs e)
        {
            pnlComanda.Visible = false;
            pnlMeniu.Visible = false;
            pnlMain.Visible = true;
            pnlDespre.Visible = false;
        }

        private void btnComanda_Click(object sender, EventArgs e)
        {
            pnlComanda.Visible = true;
            pnlMain.Visible = false;
            lbBack.Visible = true;
            pictureBox1.Visible = false;
        }

        private void btnMeniu_Click(object sender, EventArgs e)
        {
            pnlComanda.Visible = false;
            pnlMain.Visible = false;
            pnlMeniu.Visible = true;
            lbBack.Visible = true;
        }

        private void btnConfirm_Click(object sender, EventArgs e)
        {
            MessageBox.Show("Comanda ta a fost plasată cu succes!", "Confirmare");
        }

        private void btnReset_Click(object sender, EventArgs e)
        {
            MessageBox.Show("Comanda ta a fost restată.", "Restare");

            foreach (Control ceva in gBstuff.Controls)
            {

                if ((ceva as CheckBox)!=null)
                {
                    (ceva as CheckBox).Checked = false;
                }
            }
            foreach (Control ceva in gbMarime.Controls)
            {
                if ((ceva as RadioButton)!=null)
                {
                    (ceva as RadioButton).Checked = false;
                }
            }
            comboBox1.Text = "";
            pictureBox1.Visible = false;
            lbpretfinal.Text = " ";
            rBmic.Enabled = true;
            rbMedie.Enabled = true;
            rbMare.Enabled = true;
        }
        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            pictureBox1.Image = new Bitmap("img/" + comboBox1.Text + ".jpg");
            pictureBox1.Visible = true;
            lbpretfinal.Text =  lstpreturi.Items[comboBox1.SelectedIndex].ToString();
            pret = double.Parse(lbpretfinal.Text);
            foreach (Control ceva in gBstuff.Controls)
            {

                if ((ceva as CheckBox) != null)
                {
                    (ceva as CheckBox).Checked = false;
                }
            }
            foreach (Control ceva in gbMarime.Controls)
            {
                if ((ceva as RadioButton) != null)
                {
                    (ceva as RadioButton).Checked = false;
                }
            }
            rbMedie.Enabled = false;
        }

        private void btnDespre_Click(object sender, EventArgs e)
        {
            pnlComanda.Visible = false;
            pnlMain.Visible = false;
            pnlMeniu.Visible = false;
            lbBack.Visible = true;
            pnlDespre.Visible = true;
        }

        private void rBmic_Click(object sender, EventArgs e)
        {

            if (rBmic.Checked == true)
            {
                pret -= (double.Parse(lbpretfinal.Text) * (1 / 3.0));
                aux++;
            }
            else if (rBmic.Checked == false)
            {
                pret += (double.Parse(lbpretfinal.Text) * (1 / 3.0));
            }
            if (aux > 0)
            {
                rBmic.Enabled = false;
            }
            if (rbMare.Enabled==false)
            {
                rbMare.Enabled = true;
            }
            if (rbMedie.Enabled == false)
            {
                rbMedie.Enabled = true;
            }
            pret = double.Parse(String.Format("{0:0.00}", pret));
            lbpretfinal.Text = pret.ToString();
        }

        private double aux2 = 0;

        private void rbMedie_Click(object sender, EventArgs e)
        {

            if (rbMedie.Checked == true)
            {
                lbpretfinal.ResetText();
                aux2++;
            }
            if (aux2>0)
            {
                rbMedie.Enabled = false;
            }
            if (rbMare.Enabled == false)
            {
                rbMare.Enabled = true;
            }
            if (rBmic.Enabled == false)
            {
                rBmic.Enabled = true;
            }
            pret = double.Parse(String.Format("{0:0.00}", pret));
            lbpretfinal.Text = pret.ToString();
        }

        private double aux3 = 0;

        private void rbMare_Click(object sender, EventArgs e)
        {

            if (rbMare.Checked == true)
            {
                pret += (double.Parse(lbpretfinal.Text) * (2 / 3.0));
                aux3++;
            }
            else
            {
                if (rbMare.Checked==false)
                {
                    pret -= double.Parse(lbpretfinal.Text);
                }

            }
            if (aux3 > 0)
            {
                rbMare.Enabled = false;
            }
            if (rbMedie.Enabled == false)
            {
                rbMedie.Enabled = true;
            }
            if (rBmic.Enabled == false)
            {
                rBmic.Enabled = true;
            }
            pret = double.Parse(String.Format("{0:0.00}", pret));
            lbpretfinal.Text = pret.ToString();
        }

        private void chbPorumb_Click(object sender, EventArgs e)
        {
            if (chbPorumb.Checked==true)
            {
                pret += 2;
            }
            else
            {
                pret -= 2;
            }
            lbpretfinal.Text = pret.ToString();
        }

        private void chbCiuperci_Click(object sender, EventArgs e)
        {
            if (chbCiuperci.Checked==true)
            {
                pret += 2.5;
            }
            else
            {
                pret -= 2.5;
            }
            lbpretfinal.Text = pret.ToString();
        }

        private void chbMozza_Click(object sender, EventArgs e)
        {
            if (chbMozza.Checked==true)
            {
                pret += 3;
            }
            else
            {
                pret -= 3;
            }
            lbpretfinal.Text = pret.ToString();
        }

        private void chbKetchup_Click(object sender, EventArgs e)
        {
            if (chbKetchup.Checked==true)
            {
                pret += 2;
            }
            else
            {
                pret -= 2;
            }
            lbpretfinal.Text = pret.ToString();
        }
    }
}