C#代码生成label和button

//自动生成label
for (int x = 0; x < 5;x++ )
{
    Graphics
     dc = CreateGraphics();
    Show();
    Pen bluePen = new Pen(Color.Blue, 3);
    dc.DrawRectangle(bluePen, x*80, 0, 50, 50);
}

int _Height = 0;

for (int i = 0; i < 10; i++)
{
    Label sy = new Label();
    sy.AutoSize = true;
    sy.Location = new Point(0, _Height);
    _Height += sy.Height;
    sy.Text = i.ToString();
    Controls.Add(sy);
}

//生成button
Button[] buttons = new Button[50];
// for (int i = 0; i < 5; i++) // 只产生5个button
for (int i = 0; i < classroom_name_init.Length; i++)
{
    int t_y = i / 10;
    int t_x = i % 10;
    if (classroom_name_init[i] != null)
    {
        buttons[i] = new Button();
        buttons[i].Name = "button" + i;
        // buttons[i].Text = buttons[i].Name;
        buttons[i].Text = zone_name_init + classroom_name_init[i];
        buttons[i].Size = new Size(60, 25);
        buttons[i].Location = new Point(110 + 70 * t_x, 210 + 50 * t_y);

        //panel1.Controls.Add(buttons[i]);
        buttons[i].BringToFront();//置于顶层
        buttons[i].Click += new EventHandler(Buttons_Click);
    }
    else
    {

    }
}
this.Controls.AddRange(buttons);

//生成的button有按键效果
void Buttons_Click(object sender, EventArgs e)
{
    date_str = comboBox3.Text + " " + comboBox4.Text + "-" + comboBox5.Text;
    this.Text = (sender as Button).Text;
    Classroom classroom = new Classroom(zone_name_init, classroom_name_init, this.Text, date_str);
    this.Hide();
    classroom.ShowDialog();
}