#pragma once

extern "C" int _declspec(dllexport)Multiplication(int i, int j);

#include "pch.h"
#include "CalculatorDynamicLinkLibrary.h"

int Multiplication(int i, int j)
{
    int calc = i * j;

    return calc;
}

#pragma once
#include <collection.h>
#include <../CalculatorDynamicLinkLibrary/CalculatorDynamicLinkLibrary.h>

namespace CalculatorInvoke
{
    public ref class CalculatorInvoker sealed
    {
    public:
        CalculatorInvoker();

        int Mult(int i, int j);
    };
}

#include "pch.h"
#include "CalculatorInvoke.h"

using namespace CalculatorInvoke;
using namespace Platform;

CalculatorInvoker::CalculatorInvoker()
{
}
int CalculatorInvoker::Mult(int i, int j)
{
    return Multiplication(i, j);
}

private void CalculateRsult(object sender, System.Windows.Input.GestureEventArgs e)
{
    if (string.IsNullOrWhiteSpace(input1.Text) || string.IsNullOrWhiteSpace(input2.Text))
    {
        MessageBox.Show("输入框不能为空！", "友情提示", MessageBoxButton.OK);
        return;
    }

    CalculatorInvoker calculator = new CalculatorInvoker();

    int i = Convert.ToInt32(this.input1.Text);
    int j = Convert.ToInt32(this.input2.Text);
    int result = calculator.Mult(i, j);

    this.txtResult.Text = string.Format("{0}", result);
}