I was developing a calculator in C #, and I started to do the activation part of the buttons through the keyboard.
if (e.KeyCode == Keys.Add)
{
btnsum.PerformClick();
}
Using the above code, I've already been able to do most of the button activation, but then my question popped up.
Is there a way to do the % (percentage) button activation by pressing Shift together with 5 ?
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace Calculadora
{
public partial class frmCalculadora : Form
{
public frmCalculadora()
{
InitializeComponent();
}
public string n1 = "", n2 = "";
double memory = 0;
public bool estado = false;
class Calc
{
public string Op = "";
public string Igual(string strN1, string strN2)
{
double n1 = Convert.ToDouble(strN1);
double n2 = Convert.ToDouble(strN2);
double resul = 0;
switch (Op)
{
case "/":
resul = n1 / n2;
break;
case "*":
resul = n1 * n2;
break;
case "-":
resul = n1 - n2;
break;
case "+":
resul = n1 + n2;
break;
case "mod":
resul = n1 % n2;
break;
case "log":
resul = Math.Pow(n1, n2);
break;
}
return Convert.ToString(resul);
}
}
Calc c = new Calc();
private void btn0_Click(object sender, EventArgs e)
{
if (estado)
{
txtVisor.Text = "0";
estado = false;
}
else
{
txtVisor.Text += "0";
}
}
private void btn1_Click(object sender, EventArgs e)
{
if (estado)
{
txtVisor.Text = "1";
estado = false;
}
else
{
txtVisor.Text += "1";
}
}
private void btn2_Click(object sender, EventArgs e)
{
if (estado)
{
txtVisor.Text = "2";
estado = false;
}
else
{
txtVisor.Text += "2";
}
}
private void btn3_Click(object sender, EventArgs e)
{
if (estado)
{
txtVisor.Text = "3";
estado = false;
}
else
{
txtVisor.Text += "3";
}
}
private void btn4_Click(object sender, EventArgs e)
{
if (estado)
{
txtVisor.Text = "4";
estado = false;
}
else
{
txtVisor.Text += "4";
}
}
private void btn5_Click(object sender, EventArgs e)
{
if (estado)
{
txtVisor.Text = "5";
estado = false;
}
else
{
txtVisor.Text += "5";
}
}
private void btn6_Click(object sender, EventArgs e)
{
if (estado)
{
txtVisor.Text = "6";
estado = false;
}
else
{
txtVisor.Text += "6";
}
}
private void btn7_Click(object sender, EventArgs e)
{
if (estado)
{
txtVisor.Text = "7";
estado = false;
}
else
{
txtVisor.Text += "7";
}
}
private void btn8_Click(object sender, EventArgs e)
{
if (estado)
{
txtVisor.Text = "8";
estado = false;
}
else
{
txtVisor.Text += "8";
}
}
private void btn9_Click(object sender, EventArgs e)
{
if (estado)
{
txtVisor.Text = "9";
estado = false;
}
else
{
txtVisor.Text += "9";
}
}
private void btnsum_Click(object sender, EventArgs e)
{
try{
n1 = txtVisor.Text;
c.Op = "+";
estado = true;
}
catch
{
return;
}
}
private void btnmin_Click(object sender, EventArgs e)
{
try{
n1 = txtVisor.Text;
c.Op = "-";
estado = true;
}
catch
{
return;
}
}
private void btnmult_Click(object sender, EventArgs e)
{
try{
n1 = txtVisor.Text;
c.Op = "*";
estado = true;
}
catch
{
return;
}
}
private void btndiv_Click(object sender, EventArgs e)
{
try{
n1 = txtVisor.Text;
c.Op = "/";
estado = true;
}
catch
{
return;
}
}
private void btnraiz_Click(object sender, EventArgs e)
{
try{
n1 = txtVisor.Text;
double doubleN1 = Convert.ToDouble(n1);
double result = Math.Sqrt(doubleN1);
txtVisor.Text = Convert.ToString(result);
}
catch
{
return;
}
}
private void btnporc_Click(object sender, EventArgs e)
{
try{
double N1 = Convert.ToDouble(n1);
double N2 = Convert.ToDouble(txtVisor.Text);
txtVisor.Text = Convert.ToString(N1 * N2 /100);
}
catch
{
return;
}
}
private void btnigu_Click(object sender, EventArgs e)
{
try{
n2 = txtVisor.Text;
txtVisor.Text = c.Igual(n1, n2);
}
catch
{
return;
}
}
private void btnmod_Click(object sender, EventArgs e)
{
try{
n1 = txtVisor.Text;
c.Op = "mod";
estado = true;
}
catch
{
return;
}
}
private void btnlog_Click(object sender, EventArgs e)
{
try{
n1 = txtVisor.Text;
c.Op = "log";
estado = true;
}
catch
{
return;
}
}
private void btnvirgula_Click(object sender, EventArgs e)
{
try{
int virg;
virg = txtVisor.Text.IndexOf(",");
if (virg >= 0)
return;
else
txtVisor.Text += ",";
}
catch
{
return;
}
}
private void btnclear_Click(object sender, EventArgs e)
{
txtVisor.Text = "";
n1 = "0";
n2 = "0";
c.Op = "0";
}
private void btnback_Click(object sender, EventArgs e)
{
try{
char[] arr = txtVisor.Text.ToCharArray();
string txt = "";
int tamanho = arr.Length;
for (int i = 0; i < arr.Length; i++)
{
if (i + 1 != tamanho)
{
txt += arr[i].ToString();
}
}
txtVisor.Text = txt;
}
catch
{
return;
}
}
private void btnpot_Click(object sender, EventArgs e)
{
try{
double N1 = Convert.ToDouble(txtVisor.Text);
txtVisor.Text = Convert.ToString((N1 * N1) * N1);
}
catch
{
return;
}
}
private void btn_inverter_Click(object sender, EventArgs e)
{
try{
double n1 = double.Parse(txtVisor.Text) * (-1);
txtVisor.Text = n1.ToString();
}
catch
{
return;
}
}
private void btn_quadrado_Click(object sender, EventArgs e)
{
try{
double N1 = Convert.ToDouble(txtVisor.Text);
txtVisor.Text = Convert.ToString(N1 * N1);
}
catch
{
return;
}
}
private void btn_inv_Click(object sender, EventArgs e)
{
try
{
double d = double.Parse(txtVisor.Text);
if (d == 0)
{
return;
}
else
{
d = 1 / d;
txtVisor.Text = d.ToString();
}
}
catch
{
return;
}
}
private void btnCE_Click(object sender, EventArgs e)
{
try{
txtVisor.Text = "";
}
catch
{
return;
}
}
private void btnmmais_Click(object sender, EventArgs e)
{
try{
memory += Convert.ToDouble(txtVisor.Text);
txtVisor.Clear();
}
catch
{
return;
}
}
private void btnmclear_Click(object sender, EventArgs e)
{
try{
memory = Convert.ToDouble("0");
txtVisor.Clear();
}
catch
{
return;
}
}
private void btnmmenos_Click(object sender, EventArgs e)
{
try{
memory -= Convert.ToDouble(txtVisor.Text);
txtVisor.Clear();
}catch{
return;
}
}
private void btnmresult_Click(object sender, EventArgs e)
{
try{
txtVisor.Text = Convert.ToString(memory);
}
catch
{
return;
}
}
private void btnmsave_Click(object sender, EventArgs e)
{
try{
memory = Convert.ToDouble(txtVisor.Text);
txtVisor.Clear();
}
catch
{
return;
}
}
private void txtVisor_TextChanged(object sender, EventArgs e)
{
}
private void Form1_KeyPress(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Add)
{
btnsum.PerformClick();
}
else if (e.KeyCode == Keys.Subtract)
{
btnmin.PerformClick();
}
else if (e.KeyCode == Keys.Multiply)
{
btnmult.PerformClick();
}
else if (e.KeyCode == Keys.Divide)
{
btndiv.PerformClick();
}
else if (e.KeyCode == Keys.Enter || e.KeyCode == Keys.Separator)
{
btnigu.PerformClick();
}
else if (e.KeyCode == Keys.D0 || e.KeyCode == Keys.NumPad0)
{
btn0.PerformClick();
}
else if (e.KeyCode == Keys.D1 || e.KeyCode == Keys.NumPad1)
{
btn1.PerformClick();
}
else if (e.KeyCode == Keys.D2 || e.KeyCode == Keys.NumPad2)
{
btn2.PerformClick();
}
else if (e.KeyCode == Keys.D3 || e.KeyCode == Keys.NumPad3)
{
btn3.PerformClick();
}
else if (e.KeyCode == Keys.D4 || e.KeyCode == Keys.NumPad4)
{
btn4.PerformClick();
}
else if (e.KeyCode == Keys.D5 || e.KeyCode == Keys.NumPad5)
{
btn5.PerformClick();
}
else if (e.KeyCode == Keys.D6 || e.KeyCode == Keys.NumPad6)
{
btn6.PerformClick();
}
else if (e.KeyCode == Keys.D7 || e.KeyCode == Keys.NumPad7)
{
btn7.PerformClick();
}
else if (e.KeyCode == Keys.D8 || e.KeyCode == Keys.NumPad8)
{
btn8.PerformClick();
}
else if (e.KeyCode == Keys.D9 || e.KeyCode == Keys.NumPad9)
{
btn9.PerformClick();
}
else if (e.KeyCode == Keys.Decimal || e.KeyCode == Keys.OemPeriod || e.KeyCode == Keys.Oemcomma || e.KeyCode == Keys.None)
{
btnvirgula.PerformClick();
}
else if (e.KeyCode == Keys.Back)
{
btnback.PerformClick();
}
else if (e.KeyCode == Keys.Delete)
{
btnclear.PerformClick();
}
else if (e.KeyCode == Keys.Delete)
{
btnback.PerformClick();
}
else if (e.Modifiers == Keys.Shift && e.KeyCode == Keys.D5)
{
btnporc.PerformClick();
}
}
}
}