Question

I have an application coded in C# and in the first window I enter some details in textboxes, combo boxes, radio buttons and a checkbox. When I click on the Next button, it goes to the second window and to do that, I use:

form2 f2 = new form2();
f2.show();
this.hide();

in that 2nd window, I have a Back button, which when clicked, goes to first window. To do that I use the code:

form1 f1 = new form1();
f1.show();
this.hide();

but the thing is, when I go to that window I lose all the data I entered. Is there an easy way to get this data back in to relevent controls without setting them one by one again?

Answer 1

Consider for the first form, when you want to show the second form

 public partial class Form1 : Form
    {
 Form2 frm;
    public Form1()
    {
        InitializeComponent();
        frm = new Form2(this);
    }

    private void button1_Click(object sender, EventArgs e)
    {

        this.Hide();
        frm.Show();
    }

now for second form

public partial class Form2 : Form
    {
        Form1 frm;
        public Form2(Form1 fr)
        {
            InitializeComponent();
            frm = fr;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            this.Hide();
            frm.Show();

        }

       }
    }