将文本写入文本框

Question

I got a form called Form1 and a rich text box called richtextbox1, which is automatically generated, so it's private.

I got another class that connects to a server, I want to output the status of connecting but I can only access the richtextbox1.Text in the Form1 class, I got 2 possible solutions for this, which would be better or is there a better one that I don't know of?

1. making the textbox public

2. instead of :

    Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); Application.Run(new Form1()); 

creating a form1 object first and using that to store the form that is running:

//somewhere global
Form1 theform = new Form1();


Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(theform);

Then using the object somewhere in my connection class.

Answer 1

I'd create a public property in Form1 that you can use.

Form1.cs

public string TextBoxText
{
    get { return myTextBox.Text; }
    set { myTextBox.Text = value; }
}

You can then set the value from another class.

AnotherClass.cs

myForm1.TextBoxText = "Current server status";

How you get access to myForm1 depends on how you're calling the other class. For example, you could pass the form into the other class's constructor.

private Form1 myForm1 = null;
public AnotherClass(Form1 mainForm)
{
    myForm1 = mainForm;
    myForm1.TextBoxText = "Current server status";
} 

Answer 2

如果要在Form1中创建与服务器通信的类，请向它添加一个事件，并在创建Form1时订阅它。