从另一个类/命名空间访问形式的标签 [英] Access form label from another class/namespace

问题描述

我知道这已被要求数以千计的时间，但仍然有大量的研究后，我无法找到一个解决方案，我对这个职位真的很抱歉。

I know this has been asked thousands of time but still after a lot of research I can't find a solution and I am really sorry about this post.

我想从一个类访问我的标签在另一个命名空间。
这是一个代码示例，以更好地了解我所试图做的：

I want to access my Label from a class in another namespace. This is a sample of code to understand better what I am trying to do:

public partial class Main : Form
    {
        public Main()
        {
            InitializeComponent();
        }
    }



//class in another namespace
class Servers
    {
        public void _SetlabelText()
        {
           Main.label1.Text = "New Text";
        }
    }

我怎么做的正确方法？

How am I supposed to do it the proper way?

推荐答案

一个选项是存储在像这样的构造函数形式的引用：

One option is to store a reference to the form in the constructor like this:

public class Servers
{
    private Form _frmMain;
    public Servers(Form frmMain)
    {
        _frmMain = frmMain;
    }
    public void SetlabelText()
    {
        _frmMain.label1.Text = "New Text";
    }
}

和使用这样的：

public partial class Main : Form
{
    public Main()
    {
        InitializeComponent();
        var servers = new Servers(this);
        servers.SetlabelText();
    }
}

然而，它通常建议回返回到窗体类，并设置它在那里，像这样的：

However, it's typically advised to return back to the Form class and set it there, like this:

public partial class Main : Form
{
    public Main()
    {
        InitializeComponent();
        label1.Text = Servers.GetTextForLabel();
    }
}
public class Servers
{
    public static string GetTextForLabel()
    {
       return "New Text"; //(I assume this will be much more complex)
    }
}

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