passing data between 3 windows forms in visual studio using C#

Question

I have a windows application which has 3 forms : Form1,2,3. I want to send text of a textbox from form2 to form1 and then that same text from for

Answer 1

I would recommend a change from using constructors to using properties. This will keep things properly 'contained' and it's pretty simple.

EX:

public partial class Form3 : Form
{
   public String form1Text {get; set;}

   public Form3()
   {
       InitializeComponent();
   }
}

---

public partial class Form2 : Form
{
   public Form2()
   {
       InitializeComponent();
       string loginname = form2_textbox.Text;
   }

   public String form2Text {get; set;}

   private void send_to_form1_button_Click(object sender, EventArgs e)
   {

       form2Text = form2_textbox.Text;
       this.DialogResult = DialogResult.Ok;
       this.Close();
   }
}

Then in form 1:

public partial class Form1 : Form
{
   string receivefromForm2a;

   public Form1()
   { InitializeComponent(); }       

    private void openform3_Click(object sender, EventArgs e)
    {
        Form3 f3 = new Form3();
        f3.form1Text = receivefromForm2a;
        f3.Show();
    }

private void OPENFORM2_Click(object sender, EventArgs e)
{
    Form2 f2 = new Form2();
    if(f2.ShowDialog() == DialogResult.Ok)
    {
      receivefromForm2a = f2.form2Text; //New Property on Form2.
    }
}
}