如何知道用戶關閉打開對話框而不保存？

Question

SaveFileDialog sfd = new SaveFileDialog(); 

sfd.ShowDialog(); 
sfd.Filter("Wave Files|*.wav"); 
ss.SetOutPutToWaveFile(sfd.FileName); 
ss.Speak(richTextbox.Text); 
ss.SetOutputToDefaultAudioDevice(); 

Answer 1

從sfd.ShowDialog()使用返回值：

if (sfd.ShowDialog() == DialogResult.OK) 
{ 
    // File was selected 
} 
else 
{ 
    // Cancelled 
} 

Answer 2

if (sfd.ShowDialog() == DialogResult.OK){ 

    //user saved it 
} 
else { 

    //write code to handle the case when an user does't save , and canceled it 
}