private void Add_New_Workshop_button_Click(object sender, EventArgs e)
{
AddWorkshop ADDws = new AddWorkshop();
ADDws.Tag = this;
ADDws.Show(this);
Hide();
}
private void buttonAddNewWorkshop_Click(object sender, EventArgs e)
{
AddWorkshop aw = new AddWorkshop();
aw.Tag = this;
aw.Show(this);
Hide();
}