ทำยังไงให้ฟังก์ชั่น SaveFileDialog ไม่โชว์ขึ้นมาเวลาสั่งเซฟ

    public partial class Form1 : Form
    {
	public Form1()
	{
	    InitializeComponent();
	}

	private void button1_Click(object sender, EventArgs e)
	{
	    // When user clicks button, show the dialog.
	    saveFileDialog1.ShowDialog();
	}

	private void saveFileDialog1_FileOk(object sender, CancelEventArgs e)
	{
	    // Get file name.
	    string name = saveFileDialog1.FileName;
	    // Write to the file name selected.
	    // ... You can write the text from a TextBox instead of a string literal.
	    File.WriteAllText(name, "test");
	}
    }