Form1 不会关闭。 （C＃）

Question

I'm practicing some C# and I decided to make an extremely simple login screen. I would like the login screen to close after the password is entered successfully, but I cannot seem to do it.

        private void button1_Click(object sender, EventArgs e)
    {
        if (textBox1.Text == "pwhere")

        {

            Form2 form2 = new Form2();
            Form1 form1 = new Form1();

            {

                form2.ShowDialog();
                form1.Close();
            }

        }

    }

Thanks! :) This button is in Form1 if that causes any trouble btw.

Fixed it.

        private void button1_Click(object sender, EventArgs e)
    {
        if (textBox1.Text == "rbxgod")

        {

            Form2 form2 = new Form2();
            form2.Show();
            Hide();
        }

    }

Answer 1

This button is in Form1 if that causes any trouble btw.

Assuming Form1 is your startup form, you can hide it, then call ShowDialog() with Form2, and finally close the original Form allowing the application to exit gracefully:

this.Hide();
Form2 f2 = new Form2();  
f2.ShowDialog();
this.Close();

Alternatively, you could wire up the FormClosed() event of Form2 and close the current form from there. This would allow you to use Show() instead of ShowDialog():

this.Hide();
Form2 f2 = new Form2();
f2.FormClosed += (s2, e2) => { this.Close(); };
f2.Show();