Taschenrechner
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Taschenrechner
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 Test
{
public partial class fMain : Form
{
public string tb_inhalt1;
public string tb_inhalt2;
public string rechnen;
public fMain()
{
InitializeComponent();
}
private void btn1_Click(object sender, EventArgs e)
{
if (rechnen != "")
{
tb_inhalt2 = txtB.Text + "1";
txtB.Text = tb_inhalt2;
}
else
{
tb_inhalt1 = txtB.Text + "1";
txtB.Text = tb_inhalt1;
}
}
private void btn2_Click(object sender, EventArgs e)
{
if (rechnen != "")
{
tb_inhalt2 = txtB.Text + "2";
txtB.Text = tb_inhalt2;
}
else
{
tb_inhalt1 = txtB.Text + "2";
txtB.Text = tb_inhalt1;
}
}
private void btn3_Click(object sender, EventArgs e)
{
if (rechnen != "")
{
tb_inhalt2 = txtB.Text + "3";
txtB.Text = tb_inhalt2;
}
else
{
tb_inhalt1 = txtB.Text + "3";
txtB.Text = tb_inhalt1;
}
}
private void btn4_Click(object sender, EventArgs e)
{
if (rechnen != "")
{
tb_inhalt2 = txtB.Text + "4";
txtB.Text = tb_inhalt2;
}
else
{
tb_inhalt1 = txtB.Text + "4";
txtB.Text = tb_inhalt1;
}
}
private void btn5_Click(object sender, EventArgs e)
{
if (rechnen != "")
{
tb_inhalt2 = txtB.Text + "5";
txtB.Text = tb_inhalt2;
}
else
{
tb_inhalt1 = txtB.Text + "5";
txtB.Text = tb_inhalt1;
}
}
private void btn6_Click(object sender, EventArgs e)
{
if (rechnen != "")
{
tb_inhalt2 = txtB.Text + "6";
txtB.Text = tb_inhalt2;
}
else
{
tb_inhalt1 = txtB.Text + "6";
txtB.Text = tb_inhalt1;
}
}
private void btn7_Click(object sender, EventArgs e)
{
if (rechnen != "")
{
tb_inhalt2 = txtB.Text + "7";
txtB.Text = tb_inhalt2;
}
else
{
tb_inhalt1 = txtB.Text + "7";
txtB.Text = tb_inhalt1;
}
}
private void btn8_Click(object sender, EventArgs e)
{
if (rechnen != "")
{
tb_inhalt2 = txtB.Text + "8";
txtB.Text = tb_inhalt2;
}
else
{
tb_inhalt1 = txtB.Text + "8";
txtB.Text = tb_inhalt1;
}
}
private void btn9_Click(object sender, EventArgs e)
{
if (rechnen != "")
{
tb_inhalt2 = txtB.Text + "9";
txtB.Text = tb_inhalt2;
}
else
{
tb_inhalt1 = txtB.Text + "9";
txtB.Text = tb_inhalt1;
}
}
private void btn0_Click(object sender, EventArgs e)
{
if (rechnen != "")
{
tb_inhalt2 = txtB.Text + "0";
txtB.Text = tb_inhalt2;
}
else
{
tb_inhalt1 = txtB.Text + "0";
txtB.Text = tb_inhalt1;
}
}
private void btnPlus_Click(object sender, EventArgs e)
{
rechnen = "+";
tb_inhalt1 = txtB.Text;
txtB.Text = "";
lblZahl.Text = tb_inhalt1 + rechnen;
}
private void btnMinus_Click(object sender, EventArgs e)
{
rechnen = "-";
tb_inhalt1 = txtB.Text;
txtB.Text = "";
lblZahl.Text = tb_inhalt1 + rechnen;
}
private void btnMal_Click(object sender, EventArgs e)
{
rechnen = "*";
tb_inhalt1 = txtB.Text;
txtB.Text = "";
lblZahl.Text = tb_inhalt1 + rechnen;
}
private void btnGeteilt_Click(object sender, EventArgs e)
{
rechnen = "/";
tb_inhalt1 = txtB.Text;
txtB.Text = "";
lblZahl.Text = tb_inhalt1 + rechnen;
}
private void btnGleich_Click(object sender, EventArgs e)
{
if (rechnen == "+")
{
txtB.Text = Convert.ToString(Convert.ToInt32(tb_inhalt1) + Convert.ToInt32(tb_inhalt2));
}
else if (rechnen == "-")
{
txtB.Text = Convert.ToString(Convert.ToInt32(tb_inhalt1) - Convert.ToInt32(tb_inhalt2));
}
else if (rechnen == "*")
{
txtB.Text = Convert.ToString(Convert.ToInt32(tb_inhalt1) * Convert.ToInt32(tb_inhalt2));
}
else
{
txtB.Text = Convert.ToString(Convert.ToInt32(tb_inhalt1) / Convert.ToInt32(tb_inhalt2));
}
lblZahl.Text = tb_inhalt1 + rechnen + tb_inhalt2 + "=";
}
private void btnClear_Click(object sender, EventArgs e)
{
txtB.Text = "";
lblZahl.Text = "";
}
private void fMain_Load(object sender, EventArgs e)
{
}
private void txtB_MouseHover(object sender, EventArgs e)
{
txtB.BackColor = Color.Lime;
}
private void txtB_MouseLeave(object sender, EventArgs e)
{
txtB.BackColor = Color.White;
}
}
}
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