从另一个Winform调用WinForm并传递值。 [英] Calling WinForm from another Winform and passing value.

问题描述

嗨朋友们，



我想从Form1显示/调用Form2并将值从Form1传递给Form2



两者都是简单的WinForms并使用C＃来解决这个问题。

请帮忙。

解决方案

将数据发送回调用表单 [ ^ ]

将数据从一个表单传递到另一个表单 [ ^ ]

如何将值一个表单传递给Windows窗体中的另一个表单 [ ^ ]

传递.NET 1.x中的表单与C＃和VB.NET示例之间的值 [ ^ ]

没有召唤这样的概念形成。表单不是过程，方法，函数，属性，子例程或运算符。



这必须是关于表单协作的流行问题。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

使用构造函数将值从一个表单传递到另一个表单



例如：



Form1：

 form2 f =  new  form2（  test string）; 
 f.show（）; 

表格2构造函数：

  public  form2（ string  temp）
 {
 
 } 

Hi friends,

I want to show/call Form2 from Form1 and pass value from Form1 to Form2

Both are simple WinForms and using C# to acieve this.
Please help.

解决方案

Pass data back to the calling form[^]
Pass Data from One Form to Another Form[^]
How to pass the Value one form to another form in windows form[^]
Passing Values between Forms in .NET 1.x with C# and VB.NET examples[^]

There is no such concept as "calling a form". A form is not a procedure, method, function, property, subroutine or operator.

This must be 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

Use constructor for passing values from one form to another

eg:

Form1 :

form2 f=new form2("test string");
f.show();

Form 2 Constructor :

public form2(string temp)
{

}

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