public Form1()
{
InitializeComponent();
b = new BBS(long.Parse(textBox1.Text), long.Parse(textBox2.Text), long.Parse(textBox3.Text));
textBox4.ScrollBars = ScrollBars.Vertical;
}
//set parametr
private void button2_Click(object sender, EventArgs e)
{
b = new BBS(long.Parse(textBox1.Text), long.Parse(textBox2.Text), long.Parse(textBox3.Text));
textBox4.Text = "";
}