private void consultarToolStripMenuItem_Click(object sender, EventArgs e)
{
if (ob == null)
{
ob = new Consultar();
ob.MdiParent = this;
ob.FormClosed += new FormClosedEventHandler(ob_FormClosed);
ob.Show();
lblLogo.Visible = false;
picLogo.Visible = false;
}
else
{
ob.Activate();
lblLogo.Visible = false;
picLogo.Visible = false;
}
}
void ob_FormClosed(object sender, EventArgs e)
{
ob = null;
lblLogo.Visible = true;
picLogo.Visible = true;
}