private void button2_Click(object sender, EventArgs e)
{
Form30 f30 = new Form30();
f30.Show();
this.Hide();
}
private void заказыТовараToolStripMenuItem_Click_1(object sender, EventArgs e)
{
Form f10 = new Form30();
f10.MdiParent = this;
f10.Show();
}
private void 除用户ToolStripMenuItem_Click(object sender, EventArgs e)
{
this.Visible = false;
Form30 f4 = new Form30();
f4.ShowDialog();
this.Visible = true;
}