private void aeroportosToolStripMenuItem_Click(object sender, EventArgs e)
{
FrmAeroportos aeroportos = FrmAeroportos.getInstance();
aeroportos.MdiParent = this;
aeroportos.Show();
}
public static FrmAeroportos getInstance()
{
if (instance == null)
{
instance = new FrmAeroportos();
}
return instance;
}
public static FrmAeroportos getInstance()
{
if (instance == null)
{
instance = new FrmAeroportos();
}
return instance;
}
private void FrmAeroportos_FormClosed(object sender, FormClosedEventArgs e)
{
instance = null;
}
private void FrmAeroportos_FormClosed(object sender, FormClosedEventArgs e)
{
instance = null;
}