C# ——SaveFileDialog

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 1  //string localFilePath, fileNameExt, newFileName, FilePath;   
 2      SaveFileDialog saveFileDialog1 = new SaveFileDialog();   
 3   
 4     //設定檔案類型   
 5     saveFileDialog1.Filter = " txt files(*.txt)|*.txt|All files(*.*)|*.*";   
 6   
 7     //設定預設檔案類型顯示順序   
 8     saveFileDialog1.FilterIndex = 2;   
 9   
10     //儲存對話方塊是否記憶上次開啟的目錄   
11     saveFileDialog1.RestoreDirectory = true;   
12   
13     //點了儲存按鈕進入   
14     if (saveFileDialog1.ShowDialog() == DialogResult.OK)   
15     {   
16         //獲得檔案路徑   
17         //localFilePath = saveFileDialog1.FileName.ToString();   
18   
19         //擷取檔案名稱，不帶路徑   
20         //fileNameExt = localFilePath.Substring(localFilePath.LastIndexOf("\\") + 1);   
21   
22         //擷取檔案路徑，不帶檔案名稱   
23         //FilePath = localFilePath.Substring(0, localFilePath.LastIndexOf("\\"));   
24   
25         //給檔案名稱前加上時間   
26         //newFileName = DateTime.Now.ToString("yyyyMMdd") + fileNameExt;   
27   
28         //在檔案名稱裡加字元   
29         //saveFileDialog1.FileName.Insert(1,"dameng");   
30                    
31         System.IO.FileStream fs = (System.IO.FileStream)saveFileDialog1.OpenFile();//輸出檔案   
32