说明从其他形式获取价值. [英] Clarifcation on Getting Value from other forms.

问题描述

大家好，

我需要获取从Form2到Form1的值，
表格2在表格1中弹出.

目前我正在做的是

1.在Form2中创建公共静态变量.
2.在Form1中获取值，例如Form2.variablename.

这是最好的方法吗?


我们也可以这样做，
通过创建表单类的实例并进行访问，而无需创建静态变量.

最好的方法是什么?


问候，
Pal

Hi All,

I need to get values from Form2 to Form1,
Form 2 is pop up screen in form1.

Currently what I am doing is,

1. Creating public Static Variable in Form2.
2. getting Value in Form1 like Form2.variablename.

is this best way?


we can do like this also ,
without creating static variable, by creating instance for the form class and accessing.

Whats is the best ways to do this?


Regards,
Pal

推荐答案

否.不要使用静态-这是不必要和危险的，同样，不要使用变量，而要使用属性.
尝试始终避免使用静态属性-如果您不了解正在发生的情况，它们可能会导致讨厌的错误.

表格2:

No. Do not use static - it is unneccessary and dangerous, likewise, do not use a variable, use a property.
Try to avoid static properties at all times - they can cause nasty bugs if you do not realise what is happening.

Form2:

public string UserName
   {
   get { return userNameTextBox.Text}
   set { userNameTextBox.Text = value; }
   }

表格1:

Form1:

Form2 f = new Form2();
f.UserName = "JoeCool";
if (f.ShowDialog() == DialogResult.OK)
   {
   Console.WriteLine(f.UserName);
   }

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