private void loginToolStripMenuItem_Click(object sender, EventArgs e)
{
if (this.ActiveMdiChild != null)
{
this.ActiveMdiChild.Visible = false;
}
FormLogin Login = new FormLogin();
Login.MdiParent = this;
Login.Show();
InitNavbar();
}
public void Login_FormClosed(object sender, FormClosedEventArgs e)
{
_instance = null;
}
