public void FormTrainOpen()
{
if (FrmTrain == null)
{
FrmTrain = new FormTraining();
FrmTrain.FormClosing += FrmTrainClose;
}
FrmTrain.Show();
FrmTrain.BringToFront();
//_frmTrain.WindowState = FormWindowState.Maximized;
}
private void FrmTrainClose(object sender, System.Windows.Forms.FormClosingEventArgs e)
{
FrmTrain = null;
}