检测用户何时按下红色x

Question

Super new to C#, but ran into a little roadblock on my most recent project. I have a couple window forms that the user is able to click through. In the main program I have a while loop that will keep looping through the forms and will initiate the form depending on which button the user pressed in the previous form (variable is called traverse). Right now I put in an exit button on each form that will break the while loop. What I'm having trouble with is when the user presses the red X at the top right corner, the form will not close (will just keep reloading). I put a ** next to the line of the code that I thought might help with the issue (but obviously did not).

    while (Program.exit != "exit")
    {
        **if (Application.Exit = true)
        {
            break
        } else 
          {
            if (Program.traverse == "form4")
            {
                Application.Run(new Form4());
            }
            if (Program.traverse == "form1")
            {
                Application.Run(new Form1());
            }
            if (Program.traverse == "form5")
            {
                Application.Run(new Form5());
            }
          }
        }
    }

Is there a way C# can detect when the user presses the red X to break out of the loop?

Answer 1

First: your approuch is totaly wrong.

Second: befor starting i am totally recommend to you read some books about Windows Forms technology or, what better about Windows Presentation Foundation (WPF) technology. After this you will no ask so wired questions and will improve you development speed and qualty dramaticly.

Third: direct answer to you question:

in you Form code behind you can do next:

    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            Closed += OnClosed;
        }

        private void OnClosed(object sender, EventArgs e)
        {
            // DO, what you need when windows closed
        }

    }