how to close previous form when new form load

Question

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i have two forms form1 and form2. form1 contain a richtextbox and 6 textboxes. and form2 contains 5textboxes and a button. when i click on richtextbox then form2 opens, and i filled all values of form2 6 textboxes. when i click button of form2 then all entries shows in richtextbox of form1.
but problem is that now button click creates object of form1 so its open one more time.
actually i want to close form1 when i click on richtextbox. and open form2. and when click button of form2 then its shows form1.
i am using following coading

C#

private void button1_Click(object sender, EventArgs e)
        {
            Form2 f2 = new Form2();
            f2.Show();
            Hide();
           f2.textBox1.Text = textstreet1.Text;
            f2.textBox2.Text = textstreet2.Text;
            f2.textBox3.Text = textcity.Text;
            f2.textBox4.Text = textstate.Text;
            f2.textBox5.Text = textcountry.Text;
            f2.textBox6.Text = textzipcode.Text;
             f2.richTextBox1.Text= textstreet1.Text + Environment.NewLine + textstreet2.Text + Environment.NewLine + textcity.Text + Environment.NewLine + textstate.Text + Environment.NewLine + textcountry.Text + Environment.NewLine + textzipcode.Text;

C#

private void richTextBox1_Click(object sender, EventArgs e)
        {
            
            Form3 child = new Form3(textBox1);
            child.Show();
            
        }

Posted 6-Mar-13 22:49pm

arvindnitin7

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2 solutions

Solution 2

use this

C#

private void richTextBox1_Click(object sender, EventArgs e)
        {

           
           Form2 f2 = new Form2();
           f2.Show();
           this.Close();

        }

        private void button1_Click(object sender, EventArgs e)
        {
        Form1 f1= new Form1();
        f1.Show();
        this.Close();
        }

Posted 7-Mar-13 0:07am

Ayyappan Ravi

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Pheonyx · Accepted Answer · 2013-03-06T23:08:00

Firstly, you could simply call Close(); in the richTextBox1_Click event.

Like this:

C#

private void richTextBox1_Click(object sender, EventArgs e)
        {

            Form3 child = new Form3(textBox1);
            child.Show();
            Close();

        }

Else, and this is my preferred approach, use a class to store all your address information.

C#

public class AddressInfo
{
      public string street1 {get;set;};
      public string street2 {get;set;};
      public string city {get;set;};
      public string state {get;set;};
      public string country {get;set;};
      public string zipcode {get;set;};

      public string CompleteAddress()
      {
          Return string.format("{0}\n{1}\n{2}\n{3}\n{4}\n{5}",
                 street1, street2, city, state, country, zipcode); 
      }      

}

This class is then made as a public property on Form3 and is populated in your button1_Click event.

Then you change the richTextBox1_Click event to be:

C#

private void richTextBox1_Click(object sender, EventArgs e)
        {

            Form3 child = new Form3(textBox1);
            child.Showdialog();
            richTextBox1.Text = child.AddressInfo.CompleteAddress();

        }