Error with Application.Exit(); code

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HI Guys.

i used this code in my program: Application.Exit();

but when i running program this error appears:
InvalidOperation Exeption was unhandled.
collection was modified;enumeration operation may not execute.

Can I ask if someone have an idea to how can i fix this error.

C#

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

        private void btnyes_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }

        private void btnno_Click(object sender, EventArgs e)
        {
            this.Close();
        }

    }

Posted 1-Dec-12 20:41pm

siasalar

Updated 1-Dec-12 21:01pm

Krunal Rohit

v2

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Comments

[no name] 2-Dec-12 2:46am

Where you've written this ?

siasalar 2-Dec-12 2:51am

i made a form to question for exit( are you sure to exit??)
for buttonNo i wirte: close.this();
and for buttonYes i wirte: Application.Exit();

[no name] 2-Dec-12 2:53am

Post your code as well..

siasalar 2-Dec-12 2:59am

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

private void btnyes_Click(object sender, EventArgs e)
{

Application.Exit();

}

private void btnno_Click(object sender, EventArgs e)
{
this.Close();
}

}

Richard MacCutchan 2-Dec-12 7:31am

You have still not explained why you think this code is causing the error that you see.

Richard MacCutchan 2-Dec-12 3:18am

There is nothing obviously wrong with this code. Are you sure it is actually connected to the error?

4 solutions

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siasalar · Answer 1 · 2012-12-04T02:24:00

Solution 4

with this code the problem were fixed:

Application.ExitThread();

Posted 4-Dec-12 2:24am

siasalar

azizulhoque.bd · Answer 2 · 2012-12-01T22:16:00

Solution 3

Hi Dear,

C#

DialogResult a;
a = MessageBox.Show("Are you sure to exit.", "Message", MessageBoxButtons.YesNo, MessageBoxIcon.Asterisk);
if (a == DialogResult.Yes)
{
   Form1 frm = new Form1 ();
   frm.Show();
}
else
{
   // Continue
}

Posted 1-Dec-12 22:16pm

azizulhoque.bd

Comments

siasalar 2-Dec-12 6:27am

:)look at to my question and comments.

azizulhoque.bd 3-Dec-12 0:27am

please detail explain with code. I do not understand, what do you want ?

azizulhoque.bd · Answer 3 · 2012-12-01T22:03:00

Solution 2

hi dear,

DialogResult a;
            a = MessageBox.Show("Are you sure to exit.", "Message", MessageBoxButtons.YesNo, MessageBoxIcon.Asterisk);
            if (a == DialogResult.Yes)
            {
                Application.Exit();
            }
            else
            {
                this.Close();
            }

Posted 1-Dec-12 22:03pm

azizulhoque.bd

Comments

siasalar 2-Dec-12 4:11am

Hi dear tnx for your responsibility.
i dont want use messagebox.show i want to make a new form to do this.

Krunal Rohit · Answer 4 · 2012-12-01T21:09:00

Solution 1

You're code is correct.. Go by this:

C#

private void button1_Click(object sender, EventArgs e)
        {
            var msg = MessageBox.Show("Exit", "", MessageBoxButtons.YesNo).ToString();

            if (msg == "Yes")
                Application.Exit();
            else
                return;
        }

Posted 1-Dec-12 21:09pm

Krunal Rohit

Updated 1-Dec-12 21:18pm

v2

Comments

siasalar 2-Dec-12 4:02am

i dont want use messagebox.show i want to make a new form to do this.