Programacion

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

namespace Regulador_LM317_01
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

double Vout, Iadj, r1, r2;
        int a = 0;
        int b = 0;
        double[] multiplos = {1, 1000};

private void Form1_Load(object sender, EventArgs e)
        {
            cmbR1.SelectedIndex = 0;
            cmbR2.SelectedIndex = 0;
        }

private void calcular()
        {
            r1 = r1 * multiplos[a];
            r2 = r2 * multiplos[b];

Iadj = 46 * 0.000001; //46-100uA
            Vout = 1.25 * (1 + (r2 / r1)) + (Iadj * r2);
            Vout = Math.Round(Vout,2);

lblVo.Text = Vout.ToString() + "V";
            if (r1>1000){
                r1 = r1 / 1000;
                lblR1.Text = r1.ToString() + "KΩ";
            }else
                lblR1.Text = r1.ToString() + "Ω";
            if (r2 > 1000){
                r2 = r2 / 1000;
                lblR2.Text = r2.ToString() + "KΩ";
            }else
                lblR2.Text = r2.ToString() + "Ω";
        }

private void cmbR1_SelectedIndexChanged(object sender, EventArgs e)
        {
            a = cmbR1.SelectedIndex;
        }

private void cmbR2_SelectedIndexChanged(object sender, EventArgs e)
        {
            b = cmbR2.SelectedIndex;
        }

private void button1_Click(object sender, EventArgs e)
        {
            r1 = Convert.ToDouble(txtR1.Text);
            r2 = Convert.ToDouble(txtR2.Text);
            calcular();
            lblSalida.Text = "Vout = " + lblVo.Text;
        }
    }
}

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