How to close form

Question

Ok, so a Windows Forms class, WindowSettings, and the form has a \"Cancel\"-button. When the user clicks the button, the dialog DialogSettingsCancel will pop-up up and ask the u

Answer 1

for example, if you want to close a windows form when an action is performed there are two methods to do it

1.To close it directly

Form1 f=new Form1();
f.close(); //u can use below comment also
//this.close();

2.We can also hide form without closing it

 private void button1_Click(object sender, EventArgs e)
    {
        Form1 f1 = new Form1();
        Form2 f2 = new Form2();
        int flag = 0;
        string u, p;
        u = textBox1.Text;
        p = textBox2.Text;
        if(u=="username" && p=="pasword")
        {
            flag = 1;
        }
        else
        {
          MessageBox.Show("enter correct details");
        }
        if(flag==1)
        {
            f2.Show();
            this.Hide();
        }

    }