如何从另一个班级更换标签？ c＃windows窗体visual studio [英] How to change a label from another class? c# windows forms visual studio

问题描述

我知道有很多线索在谈论这件事，并相信我已经看过他们所有的人，但我认为我有点缓慢，并且无法弄清楚如何做到这一点，所以这是事情！
我有一个表单

pre $ $ code public partial class Form1：Form
{
public Form1（ ）
{
InitializeComponent（）;


$ b private void button4_Click（object sender，EventArgs e）
{
adi mYadi = new adi（）;
adi.paso（）;

$ b $ private void Form1_Load（object sender，EventArgs e）
{

}

public void l8u（string l）
{
label8.Text = l;

l8u 方法应该改变 label8 中的文本，所以它不能是静态的，因为 label8 isn '静态（是公开的），我有这个其他的类

 公共类adi：instrucion 
 {
私人int paso; 
 private int registroD; 
 private int registroO; 
 private int valor; 
 private int vsin; 
 
 public adi（）
 {
 paso = 1; 
} 
 
 public void setRD（int i）{
 registroD = i; 
} 
 
 public void setR0（int i）
 {
 registroO = i; 
} 
 public void setV（int i）
 {
 valor = i; 
} 
 
 public int getRD（）
 {
 return registroD; 
} 
 
 public int getR0（）
 {
 return registroO; 
} 
 
 public int getVf（）
 {
 return vsin; 
 
 $ b $ public void paso（）{
 //在此方法中，我需要更改label8的值
 
 
  

paso方法负责改变 label8 但我做不到！我已经尝试了许多不同的方法，例如做一些类似于



  public void paso（）
 {
 Form1.l8u（）; 
} 
  

但是这不可能，因为 Form1 只是类的名称，l8u不是静态方法，也尝试将 label8 设置为公共静态，但visual studio不喜欢这样，每当我使用VS形式的新控制改变了公共静态。

希望你能帮助我！ 's Modifier prperty to internal or public，then call your form and change your label text directly ..

即

  Form2 frm = new Form2（）; // Form 2包含label8，并调用form1 
 
的方法（iebuttonclick）if（List< WhoLovesMe> .Count> 0）
 {
 frm.Label8。文字=有人爱我:); 
} 
 else 
 {
 frm.Label8.Text =Noone Loves Me :(; 
} 
  

I know there are a lot of threads talking about this and believe me I've seen all of them, but I think I'm a little slow and cant figure out how to do this so here is the thing! I have one form

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();

    }

    private void button4_Click(object sender, EventArgs e)
    {
        adi mYadi= new adi();
        adi.paso(); 
    }

    private void Form1_Load(object sender, EventArgs e)
    {

    }

    public void l8u(string l )
    {
       label8.Text = l; 
    }
}

The l8u method is supposed to change the text in label8, so it can't be static because label8 isn't static (is public) and I have this other class

public class adi :instrucion
{
    private  int paso;
    private  int registroD;
    private  int registroO; 
    private  int valor;
    private  int vsin; 

    public adi()
    {
        paso = 1;
    }

    public  void setRD(int i){
        registroD = i; 
    }

    public  void setR0(int i)
    {
        registroO = i;
    }
    public void setV(int i)
    {
        valor = i;
    }

    public  int getRD()
    {
        return registroD ;
    }

    public  int getR0()
    {
        return registroO;
    }

    public int getVf()
    {
        return vsin;
    }

    public void paso(){
         //in this method I need change the value of label8
    }  
}

The method paso is the one in charge of changing the value of label8 but I just can't do it! I've tried many different ways for example doing something like

public void paso()
{
    Form1.l8u();
} 

But that's not possible since Form1 is just the name of the class and l8u is not and static method, also tried setting label8 as public static but visual studio didn't like that and whenever I used a new control in the form VS change the public static for just public.

Hope you can help me!

解决方案

Simply change your label' s Modifier prperty to internal or public and then call your form and change your label text directly..

i.e.

Form2 frm = new Form2(); // Form 2 contains label8 and calling in a method (i.e.buttonclick) of form1

if (List<WhoLovesMe>.Count > 0)
{
   frm.Label8.Text = "Someone Loves Me :)";
}
else
{
   frm.Label8.Text = "Noone Loves Me :(";
}

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