C#

messages wrote:

each time I want to change the text from forms I have to make a new instance of forms

messages wrote:

but it didnt work.

messages wrote:

could you write what you said?

messages wrote:

Its not possible

private void button1_Click(object sender, EventArgs e)
    {
    Form2 form2 = new Form2();
    form2().Text = textBoxform1.Text;
    Hide();
    form2.ShowDialog();
    Text = form2.NewValue;
    Show();
    }

public string NewValue { get { return textBoxform2.Text; } }
private void button1_Click(object sender, EventArgs e)
    { 
    Close();
    }

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

Form2 f2 = new Form2();
f2.MyProperty = "hello!";
...

You   can  open the    glove box of  the car

Form1 can  access the  property of   Form2

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

    Form2 form2 = new Form2();

    private void Form1_Load(object sender, EventArgs e)
    {
        // form2 gets a reference to this instance of Form1
        form2.referenceToForm1 = this;
    }

    private void button1_Click(object sender, EventArgs e)
    {
        form2.Text = textBox1.Text;
        form2.Show();
        Hide();
    }
}

public partial class Form2 : Form
{
    public Form2()
    {
        InitializeComponent();
    }

    // holds the reference to Form1
    public Form1 referenceToForm1 { get; set; }

    private void button1_Click(object sender, EventArgs e)
    {
        referenceToForm1.Text = textBox1.Text;
        referenceToForm1.Show();
        Hide();
    }
}

var form1 = new Form1();
var form2 = new Form2();
form1.TargetForm = form2;
form2.TargetForm = form1;

private void button1_Click(object sender, EventArgs e)
{
    this.TargetForm.Show();
    this.TargetForm.Text = textBoxform1.Text;
    Hide();
}