如何讓OpenFileDialog記住它已經在％temp％？

Question

我在Win8桌面上的C＃.NET/Forms中創建日誌查看器應用程序。

使用System.Windows.Forms.OpenFileDialog時出現問題。如果我從％temp％目錄中選擇一個文件並單擊確定，然後又想選擇另一個文件，則OpenFileDialog拒絕記住我上次訪問％temp％目錄。它總是返回顯示我訪問的最後一個非％temp％目錄，這非常煩人，因爲我的應用程序通常會打開％temp％的各種日誌文件。

Precondition: - OpenFileDialog created and existing. - OpenFileDialog has InitialDirectory = "C:\" Scenario: - ShowDialog(): Displays C:\ - OK. - Change directory to C:\logfiles\test.txt and click OK to close. - ShowDialog(): Displays C:\logfiles\ - OK. - Change directory to %temp% (which expands to C:\Users\joe\AppData\Local\Temp) and click OK to close. - ShowDialog(): Displays C:\logfiles\ - FAIL! Here it should show C:\Users\joe\AppData\Local\Temp but it doesn't. It reverts to the last directory I selected that is not in %temp%. Why?

問：如何防止這種行爲？

Answer 1

您可以使用記錄InitialDirectory屬性：http://msdn.microsoft.com/en-us/library/system.windows.forms.filedialog.initialdirectory.aspx

例子：

fdlg.InitialDirectory = Path.GetTempPath(); 

請檢查下面的鏈接。

OpenFileDialog.RestoreDirectory fails for %temp% location? Bug or Feature