在form2.cs中调用form1.cs的结构 [英] call a structure of form1.cs in form2.cs

问题描述

在win form应用程序中我制作了两个form form1和form 2.



in form1.cs我做了一个结构



内部结构AddressTable

{

内部UInt32 internalmemory_StartAddress;

内部UInt32 internalmemory_EndAddress;

内部UInt32 externalmemory_StartAddress;

内部UInt32 externalmemory_EndAddress;

};





我想访问他的结构变量到form2.cs。





请帮帮我。

解决方案

它很简单

你可以通过简单地使用form2来使用form1的结构。

 WindowsFormsApplication1.Form1.AddressTable ob = new Form1.AddressTable（）; 
 

这里的form2只需将上面的代码写入调用结构或来自form1的任何其他对象

建议进行一些更改：

- 为 AddressTable 创建一个类（最好在自己的文件中），即

 内部 类 AddressTable 
 { 
  internal   UInt32  internalmemory_StartAddress { get ;  set ; }; 
 .. 
} 

- 如果Form1包含该字段的属性，请将其设为内部/公共

< pre lang =c＃> internal AddressTable TheTable { get ; set ; }

- 当你创建Form2时，给它一个Form1的引用，或者更好：给Form1的那个属性，比如

< pre lang =c＃> internal class Form2
{
private AddressTable _AddressTable;
public Form2（AddressTable addressTable）
{
_AddressTable = addressTable;
}
}

和Form1：

 .. 
 Form2 form2 =  new  Form2（TheTable）; 
 form2.ShowModal（）; 

这是关于表单协作的热门问题。最强大的解决方案是在表单类中实现适当的接口，并传递接口引用而不是引用Form的整个实例。有关更多详细信息，请参阅我以前的解决方案：如何以两种形式复制列表框之间的所有项目 [ ^ ]。



另请参阅此处的其他解决方案讨论。如果应用程序足够简单，解决方案就像在一个表单中声明一些 internal 属性并将对一个表单的实例的引用传递给另一个表单的实例一样简单形成。对于更复杂的项目，这种违反严格封装的样式和松散耦合可能会增加代码的意外复杂性并引发错误，因此封装良好的解决方案将是优惠。



另请参阅：

http://en.wikipedia.org/wiki/Accidental_complexity [ ^ ]，

http://en.wikipedia.org/wiki/Loose_coupling [ ^ ]。

-SA

In win form application i made two form form1 and form 2.

in form1.cs i made a structure

internal struct AddressTable
{
internal UInt32 internalmemory_StartAddress;
internal UInt32 internalmemory_EndAddress ;
internal UInt32 externalmemory_StartAddress ;
internal UInt32 externalmemory_EndAddress;
};


I want to access he variable of structure into form2.cs.


Please help me.

解决方案

Its simple
you can use the structure of form1 from form2 by simply adressing it.

WindowsFormsApplication1.Form1.AddressTable ob = new Form1.AddressTable();

here in the form2 simply write the above code to call structure or any other object's from form1

A few changes are recommended:
- create a class (preferably in its own file) for AddressTable, i.e.

internal class AddressTable
{
    internal UInt32 internalmemory_StartAddress { get; set; };
..
}

- If Form1 contains a property of that field, make it internal/public

internal AddressTable TheTable { get; set; }

- When you create Form2, give it a reference to Form1, or better: to that property of Form1, i.e. something like

internal class Form2
{
private AddressTable _AddressTable;
public Form2(AddressTable addressTable)
{
    _AddressTable=addressTable;
}
}

and in Form1:

..
Form2 form2 = new Form2(TheTable);
form2.ShowModal();

This is the popular question about form collaboration. The most robust solution is implementation of an appropriate interface in form class and passing the interface reference instead of reference to a "whole instance" of a Form. Please see my past solution for more detail: How to copy all the items between listboxes in two forms[^].

Please also see other solutions in this discussion. If the application is simple enough, the solution could be as simple as declaring of some internal property in one form and passing a reference to the instance of one form to the instance of another form. For more complex projects, such violation of strictly encapsulated style and loose coupling could add up the the accidental complexity of the code and invite mistakes, so the well-encapsulated solution would be preferable.

Please see also:
http://en.wikipedia.org/wiki/Accidental_complexity[^],
http://en.wikipedia.org/wiki/Loose_coupling[^].

—SA

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