Native & Managed Interop Made Simple

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

namespace SimpleCalcTesterNET
{
	public partial class SimpleCalcTesterForm : Form
	{
		public SimpleCalcTesterForm()
		{
			InitializeComponent();
		}

		private void btAddEB_Click(object sender, EventArgs e)
		{
			double oper1 = double.Parse(txOper1.Text);
			double oper2 = double.Parse(txOper2.Text);

			SimpleCalcInterop.ISimpleCalc calculator = new SimpleCalcInterop.SimpleCalc();

			txResult.Text = calculator.Add(oper1, oper2).ToString();
		}

		private void btSubtractEB_Click(object sender, EventArgs e)
		{
			double oper1 = double.Parse(txOper1.Text);
			double oper2 = double.Parse(txOper2.Text);

			SimpleCalcInterop.ISimpleCalc calculator = new SimpleCalcInterop.SimpleCalc();

			txResult.Text = calculator.Subtract(oper1, oper2).ToString();
		}

		private void btMultiplyEB_Click(object sender, EventArgs e)
		{
			double oper1 = double.Parse(txOper1.Text);
			double oper2 = double.Parse(txOper2.Text);

			SimpleCalcInterop.ISimpleCalc calculator = new SimpleCalcInterop.SimpleCalc();

			txResult.Text = calculator.Multiply(oper1, oper2).ToString();
		}

		private void btDivideEB_Click(object sender, EventArgs e)
		{
			double oper1 = double.Parse(txOper1.Text);
			double oper2 = double.Parse(txOper2.Text);

			SimpleCalcInterop.ISimpleCalc calculator = new SimpleCalcInterop.SimpleCalc();

			txResult.Text = calculator.Divide(oper1, oper2).ToString();
		}

		private void btAddLB_Click(object sender, EventArgs e)
		{
			double oper1 = double.Parse(txOper1.Text);
			double oper2 = double.Parse(txOper2.Text);

			SimpleCalcInteropLateBinding.ISimpleCalc calculator = new SimpleCalcInteropLateBinding.SimpleCalc();

			txResult.Text = calculator.Add(oper1, oper2).ToString();
		}

		private void btSubtractLB_Click(object sender, EventArgs e)
		{
			double oper1 = double.Parse(txOper1.Text);
			double oper2 = double.Parse(txOper2.Text);

			SimpleCalcInteropLateBinding.ISimpleCalc calculator = new SimpleCalcInteropLateBinding.SimpleCalc();

			txResult.Text = calculator.Subtract(oper1, oper2).ToString();
		}

		private void btMultiplyLB_Click(object sender, EventArgs e)
		{
			double oper1 = double.Parse(txOper1.Text);
			double oper2 = double.Parse(txOper2.Text);

			SimpleCalcInteropLateBinding.ISimpleCalc calculator = new SimpleCalcInteropLateBinding.SimpleCalc();

			txResult.Text = calculator.Multiply(oper1, oper2).ToString();
		}

		private void btDivideLB_Click(object sender, EventArgs e)
		{
			double oper1 = double.Parse(txOper1.Text);
			double oper2 = double.Parse(txOper2.Text);

			SimpleCalcInteropLateBinding.ISimpleCalc calculator = new SimpleCalcInteropLateBinding.SimpleCalc();

			txResult.Text = calculator.Divide(oper1, oper2).ToString();
		}
	}
}