Question

I had entered some data in the TextBox and selected item in a combobox in form2 and want to use same data in form1 how can I do so….
I tried this code
frmConfig is form2 and txtSrcIP is the TextBox

public partial class Form1 : Form
{    
    frmConfig f2 = new frmConfig();

    public Form1(frmConfig Cont)
    {
            f2 = Cont;
    }

    String SIp = f2.txtSrcIP.text;
}

The error is showing in this line String SIp = f2.txtSrcIP.text;
as A field initializer cannot reference the non static field method or property

frmConfig body
public partial class frmConfig : Form
{
private Form1 f1;

    public frmConfig()
    {
        InitializeComponent();
    }
    private void btnConnect_Click(object sender, EventArgs e)
    {



            // Open connection to the database
            string conString = "server="+txtSrcIP.Text+";uid="+txtSrcUserId.Text+";pwd="+txtSrcPwd.Text; 

            using (SqlConnection con = new SqlConnection(conString))
            {
                con.Open();

                // Set up a command with the given query and associate
                // this with the current connection.
                using (SqlCommand cmd = new SqlCommand("SELECT name from sys.databases", con))
                {
                    using (IDataReader dr = cmd.ExecuteReader())
                    {
                        while (dr.Read())
                        {
                            cbSrc.Items.Add(dr[0].ToString());
                        }
                    }
                }
            }

    private void btnNext_Click(object sender, EventArgs e)
    {
        if (cbSrc.SelectedItem != null && cbSrc.SelectedItem != "" && cbDest.SelectedItem != null && cbDest.SelectedItem != "")
        {

            this.Hide();
            //Form1 f1 = new Form1();
            f1.Show();

            this.Close();
        }
        else
        {
            MessageBox.Show("Enter all the details");
        }
    }

    }

this is what i am doing so i want all the textbox and combox value in form1

Answer 1

static frmConfig f2 = new frmConfig();

So, how about these changes:

public partial class Form1 : Form
{    
    static frmConfig f2 = new frmConfig();

    public Form1(frmConfig Cont)
    {
        f2 = Cont;
    }

    public String SIp;
}

...

private void btnNext_Click(object sender, EventArgs e)
{
    if (cbSrc.SelectedItem != null && cbSrc.SelectedItem != "" && cbDest.SelectedItem != null && cbDest.SelectedItem != "")
    {

        this.Hide();
        //Form1 f1 = new Form1();
        f1.SIp = f2.txtSrcIP.text;
        f1.Show();

        this.Close();
    }
    else
    {
        MessageBox.Show("Enter all the details");
    }
}