如何在c＃运行时将参数传递给外部dll [英] How to pass parameters to an external dll during runtime in c#

问题描述

大家好。

我有这个名为dllSource.dll的dll，它包含：

Hi everyone.
I have this dll named dllSource.dll, and it contains:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace dllSource
{
    public class Operation
    {
        public int Add(int x, int y)
        {
            int z;
            if ((x == 10) && (y == 20))
            {
                z = x + y;
            }
            else
            {
                z = x;
            }
            return z;
        }
    }
}

我打算做的是打电话给那个dll并通过它上面的参数。

我希望将5传递给x，将10传递给y。

我将如何这样做？

另外，如果我想得到dll的参数类型，我该怎么做？



谢谢

What I intend to do is to call that dll and pass parameters on it.
I want to pass 5 to x and 10 to y.
How will I so that?
Also, if I want to get the parameter type of the dll, how will I do it?

Thanks

推荐答案

您需要将dllSource.dll添加到其他项目的 References 中。

在该项目的代码中包含一行使用dllSource;

现在你可以在你的dll中使用这个类了像任何其他类或类型一样。例如

You will need to add your dllSource.dll to the References of your other project.
In the code for that project include a line using dllSource;
Now you can use the class in your dll like any other class or type. E.g.

private void button1_Click(object sender, EventArgs e)
{
    Operation o = new Operation();
    int i = o.Add(5, 10);
    // ... etc
}

获取参数类型和返回类型...



A）手动 - 右键单击解决方案资源管理器参考部分中的dllSource，然后选择在对象浏览器中查看



B）键入代码 - 使用上面的代码作为示例键入 o。并允许显示智能感知，然后将鼠标悬停在您想要信息的功能上。



C）以编程方式 - 使用反思 - 看看这个文章 [ ^ ]



由以下评论提示...你需要将类和函数声明为 public 以上任何一种工作

To get the parameter type(s) and return type ...

A) Manually - Right-click on the dllSource in the References section of Solution Explorer and select "View in Object Browser"

B) Whilst typing code - using my code above as an example type o. and allow the intellisense to display then hover your mouse over the function you want the information on.

C) Programmatically - Use Reflection - have a look at this article[^]

prompted by comment below ... you will need to declare the class and function as public for any of the above to work

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