Trouble deleting a file on a SD card

NETMF & Gadgeteer
1

I am having trouble deleting a file on a SD card with the ChipWorkX development system. I check for the specific file and if it exists then I try to delete it. I just get an

“An unhandled exception of type ‘System.IO.IOException’ occurred in Microsoft.SPOT.IO.dll” error every time.

If I delete the file from my PC, I can successfully create a new file and save xml to it with the ChipWorkX. So if I detect the file I want to remove it and create a new one. I can successful determine if it exists, but I can’t delete it. Below is the line of code.


File.Delete("\\SD\\Data\\SPSMicro.xml");
2

Maybe the SD files are corrupted already? I tried the following and it works fine here. Please try it:
-format the SD card on Windows
-put a test file on it
-make sure ChipwrokX has the latest firmware from online SDK
-try this program which deletes the file


GHIElectronics.NETMF.IO.PersistentStorage sd = new GHIElectronics.NETMF.IO.PersistentStorage("SD");
sd.MountFileSystem();

if (File.Exists("\\SD\\test.test"))
    File.Delete("\\SD\\test.test");

sd.UnmountFileSystem();
3

thanks for your help Mike. I was being careless and forget to close the xmlreader that read the file on startup. Apologies for wasting your time.

4

no problem