private void button3_Click(object sender, EventArgs e) { MC mcWindow = null; if (radioButton1.Checked) mcWindow = new eFlash.GUI.ViewerAndQuizzer.MC(deck_id, Constant.QuizInOrder); else if (radioButton3.Checked) mcWindow = new eFlash.GUI.ViewerAndQuizzer.MC(deck_id, Constant.QuizRerversedOrder); else if (radioButton4.Checked) mcWindow = new eFlash.GUI.ViewerAndQuizzer.MC(deck_id, Constant.QuizRandomOrder); if (mcWindow.loaded) { mcWindow.Show(); } else { mcWindow.Dispose(); } }