c# - change active form to show another form

Question

I have a Form1 and another one that I added. Form1 is being run by program.cs at the start. I need to hide Form1 and show options form by the press of a button.

    private void submitPassword_Click(object sender, EventArgs e)
    {
        options optionForm = new options();
        optionForm.Show();
    }

the above code opens the options form on top, but I need it to replace the current form. how can I achieve this?

Answer 1

Hide current form using this.Close() before showing new one and make sure you are using parameterless Application.Run so program won't close when you close it's main form.