CODEWITHSUNDEEP
c#winforms
Waqas
Waqas

Reputation: 867

How do you let only authorized user have access to exit application or close specific Form?

I need to only allow user whose role is "Admin" to exit application.I use following code for this purpose but after delivering message application is terminating.

private void Login_FormClosed(object sender, FormClosedEventArgs e)
{
    if (Login.role != "Admin")
    {
        MessageBox.Show("You are not authorized to Exit Application.");
    }
    else
    {
        Application.Exit();
    }
}

i also used this on FormClosing event.but not get proper functioning. i am using c# windows application.

Upvotes: 1

Views: 187

Answers (4)

Xanatos
Xanatos

Reputation: 455

Use the FormClosing event and try the following code:

private void Login_FormClosing(object sender, FormClosingEventArgs e)
{
    if (Login.role != "Admin")
    {
        MessageBox.Show("You are not authorized to Exit Application.");
        e.Cancel = true;
    }
    else 
    {
        Application.Exit();
    }
}

Upvotes: 4

David Arno
David Arno

Reputation: 43264

You need to add:

e.Cancel = true;

to the if (Login.role != "Admin") section.

You'll need to add this to the FormClosing event handler, rather than the FormClosed event handler though.

Upvotes: 3

cyberj0g
cyberj0g

Reputation: 3797

Add FormClosing event handler and put the following code inside it:

    private void Form1_FormClosing(object sender, FormClosingEventArgs e)
    {
        e.Cancel = Login.role != "Admin";
    }

Upvotes: 1

Karsten Gutjahr
Karsten Gutjahr

Reputation: 354

The FormClosed event is too late. Use the FormClosing event! There you have e.Cancel, which helps you to cancel the closing process.

Upvotes: 2

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