如何在C＃中调用方法 [英] How to call a method in C#

问题描述

如何调用在此类代码中定义的方法。需要在此代码中调用方法一个演示文稿

  private   class  MapPanel ：Control 
 {
  public   void  demo（）
 {
  //  此处代码 
} 
} 

i无法通过简单地创建类的对象来获得。

解决方案

我创建了类像这样，并使用System在类
 
中调用; 
使用System.Collections.Generic; 
使用System.Linq; 
使用System.Text; 
使用System.Windows.Forms; 
 
 namespace ConsoleApplication3 
 {
 class MapPanelOuter 
 {
 public MapPanelOuter（）
 {
 MapPanel mp = new MapPanel（） ; 
 mp.demo（）; 
} 
 
私有类MapPanel：Control 
 {
 public void demo（）
 {
 Console.WriteLine（Called MapPanel Demo Method ）; 
} 
} 
 
 
} 
} 
 
和另一个班级我打电话给这个
 
使用System; 
使用System.Collections.Generic; 
使用System.Linq; 
使用System.Text; 
 
命名空间ConsoleApplication3 
 {
 class程序
 {
 static void Main（string [] args）
 {
 MapPanelOuter mo = new MapPanelOuter（）; 
 Console.ReadKey（）; 
} 
} 
} 

1.Because你的 demo（）方法是公共的，您的类 MapPanel 是 private 您无法从此类外部访问此方法。为了能够访问它，首先你必须使你的类 public ，然后使用 MapPanel 你可以访问它。



2.如果你想访问你的 demo（）此类中的方法，不使用类型为 MapPanel 的对象，您必须声明 demo（）方法 public static ，但在第二种情况下，首先你必须让你的班级公开。




你可以在类中调用这个类Mappanel

如果下面的类是内部类，那么你可以在父类中为内部类创建一个对象，你也可以使用Mappanel调用内部类方法对象

How to call a method which is define inside this type of the code. need to call method a demo present inside the this code

private class MapPanel : Control
{
   public void demo()
   {
      // Code here
   }
}

i am not able to get by simply creating object of the Class.

解决方案

I have created class like this and called with in the class

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
 
namespace ConsoleApplication3
{
class MapPanelOuter
{
public MapPanelOuter()
{
MapPanel mp = new MapPanel();
mp.demo();
}
 
private class MapPanel : Control
{
public void demo()
{
Console.WriteLine("Called MapPanel Demo Method");
}
}
 

}
}
 
and in another class i have called like this

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
 
namespace ConsoleApplication3
{
class Program
{
static void Main(string[] args)
{
MapPanelOuter mo = new MapPanelOuter();
Console.ReadKey();
}
}
}

1.Because your demo() method is public and your class MapPanel is private you cannot access this method from outside of this class. In order to can have access to it, first you have to make your class public, then by using an object of type MapPanel you will have access to it.

2.If you want to have access to your demo() method from this class without to use an object of type MapPanel you have to declare your demo() method public static , but also in this 2nd case first you have to make your class public.

you can call this class Mappanel out side the class
if the following class is inner class then you can create an object for inner class in parent class and you can also call inner class method using Mappanel object

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