private void Hitung_Click(object sender, EventArgs e) { kal = new Kalku(); kal.Name = this.comboBox1.Text.ToLower(); kal.Operasi = string.Empty; kal.Hasil = 0; kal.Nilaia = Double.Parse(this.NilaiA.Text); kal.Nilaib = Double.Parse(this.NilaiB.Text); if (this.comboBox1.SelectedIndex == 0) { kal.Hasil = kal.Nilaia + kal.Nilaib; kal.Operasi = "+"; } else if (this.comboBox1.SelectedIndex == 1) { kal.Hasil = kal.Nilaia - kal.Nilaib; kal.Operasi = "-"; } else if (this.comboBox1.SelectedIndex == 2) { kal.Hasil = kal.Nilaia * kal.Nilaib; kal.Operasi = "*"; } else if (this.comboBox1.SelectedIndex == 3) { kal.Hasil = kal.Nilaia / kal.Nilaib; kal.Operasi = "/"; } this.OnCreate(kal); }
private void FormEntry_OnCreate(Kalku kal) { listBox1.Items.Add("Hasil" + kal.Name + " " + kal.Nilaia + " " + kal.Operasi + " " + kal.Nilaib + " " + "=" + " " + kal.Hasil); }