private void add_Click(object sender, EventArgs e) { try { int res = cal.Add(Convert.ToInt32(num1.Text), Convert.ToInt32(num2.Text)); result.Text = res.ToString(); }catch (Exception ex) { MessageBox.Show(ex.Message); } }
private void button1_Click(object sender, EventArgs e) { try { //storing the result in int i int i = cal.Add(int.Parse(textBox1.Text), int.Parse(textBox2.Text)); label2.Text = i.ToString(); } catch (Exception ex) { MessageBox.Show(ex.Message); } }