private void Manage_Workshop_button_Click(object sender, EventArgs e)
{
ManageWorkshop ws = new ManageWorkshop();
ws.Tag = this;
ws.Show(this);
Hide();
}
private void buttonViewWorkshop_Click(object sender, EventArgs e)
{
ManageWorkshop Mw = new ManageWorkshop();
Mw.Tag = this;
Mw.Show(this);
Hide();
}