Close Forms opened and hidden

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Hi,

my program is made in Windows Form C# and what i do is i have a main form, that calls onto other forms and opens then and hiddes itself:

C#

private void newToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Form2 fm2 = new Form2();
            this.Hide();
            fm2.Show();
        }

and when i close form2 it closes and opens Form 1

C#

private void Form2_FormClosed(object sender, FormClosedEventArgs e)
        {
            Form1 fm1 = new Form1();
            fm1.Show();            
        }

but my program has many forms and i do that many times, and it work fine and everything but when it gets time to close the hole program it takes a while and it closes many times apperanlty form1 it blinks and if i use it a lot it tames more time, its like if everytime a open and close it remain open and at the end it needs to close all. i close whit

C#

private void Form1_FormClosed(object sender, FormClosedEventArgs e)
        {
            Application.Exit();
        }

any help?? thanks

Posted 21-Dec-12 11:35am

azteca_04

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SS4L84 · Accepted Answer · 2012-12-21T11:42:00

You are creating a new Form1 every time you close Form2. Just pass a reference to Form2 instead.

If you need more explaining let me know and I will give you an example of how to accomplish this.

EDIT:
OK here is an example of a way to accomplish this.

Add this variable to your Form2 class "

C#

private Form1 form1;

and in your Form2 constructor do this:

C#

public Form2(Form1 form1)
{
    this.form1 = form1;
}

then in your Form2_FormClosed event handler do this:

C#

private void Form2_FormClosed(object sender, FormClosedEventArgs e)
{
    form1.Show();
}

EDIT 2:
Some sample code:

C#

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

        private void button1_Click(object sender, EventArgs e)
        {
            this.Hide();
            Form2 f2 = new Form2(this);
            f2.Show();
        }
    }

C#

public partial class Form2 : Form
    {
        Form1 form1;

        public Form2(Form1 form1)
        {
            InitializeComponent();

            this.form1 = form1;
        }

        private void Form2_Load(object sender, EventArgs e)
        {

        }

        private void Form2_FormClosed(object sender, FormClosedEventArgs e)
        {
            form1.Show();
        }
    }

Hope this will help you understand.