如何将值从一页传递到dll [英] how to pass values from one page to dll

问题描述

大家好

我正在基于.net Windows的应用程序中工作.
我为每个页面创建dll.但是在那些页面中，我想将值从frmmenuscreen传递到那些单独的屏幕.如何将值传递给dll.i不能像

Hi all

Im working in .net windows based application.
Iam creating dll for each pages.but in those page i want to pass a value from frmmenuscreen to to those individual screens.How to pass values to dll.i cannot use like

frmmater obj_co=new frmmaster;   obj_co.obj = this;

错误那样使用，主要是添加第二行此关键字.为此

在此先感谢

error coming wile adding second line mainly this keyword.how to dothis

Thanks in advance

推荐答案

您第一次调用frmmater几乎是正确的.

Hi,

your first invoke of frmmater is nearly right.

frmmaster obj_co = new frmmaster();

您的第二段代码对我来说毫无意义.

通常，您使用这样的自己的dll文件.您必须声明您的方法公开以从外部使用.

在您的dll中:

Your second piece of code makes no sense for me.

Usually you use a own dll-File like this. You have to declare your method public to use from outside.

in your dll:

public class Calculator
{
        public double Add(double val1, double val2)
        {
            return val1 + val2;
        }
}

此dll在任何形式下的用法:

Usage of this dll in anyone Form:

Calculator.Calculator calc = new Calculator.Calculator();
MessageBox.Show(calc.Add(9, 6).ToString());

此致

Best Regards

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