private void MemberMaintenanceButton_Click(object sender, EventArgs e)
{
if (memberMaintain == null)
{
memberMaintain = new MemberMaintenanceForm();
memberMaintain.MdiParent = this;
memberMaintain.Dock = DockStyle.Fill;
memberMaintain.Show();
memberMaintain.FormClosed += MemberMaintain_FormClosed;
}
else
{
memberMaintain.Activate();
}
}
private void MemberMaintain_FormClosed(object sender, FormClosedEventArgs e)
{
memberMaintain = null;
}