private void toolStripMenuItem2_Click_1(object sender, EventArgs e)
{
panel1.Controls.Clear();
groupBox1.Text = "Rooms";
panel1.Controls.Add(SomerenUI.showRooms());
}
private void toolStripMenuItem2_Click(object sender, EventArgs e)
{
panel1.Controls.Clear(); // clear stuff on panel
groupBox1.Text = "Rooms"; // set name for groupbox
panel1.Controls.Add(SomerenUI.showRooms()); // add data to the panel
}