Is there a better way than this to find out if an IsolatedStorage file exists or not?
- by Edward Tanguay
I'm using IsolatedStorage in a Silverlight application for caching, so I need to know if the file exists or not which I do with the following method.
I couldn't find a FileExists method for IsolatedStorage so I'm just catching the exception, but it seems to be a quite general exception, I'm concerned it will catch more than if the file doesn't exist.
Is there a better way to find out if a file exists in IsolatedStorage than this:
public static string LoadTextFromIsolatedStorageFile(string fileName)
{
string text = String.Empty;
using (IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication())
{
try
{
using (IsolatedStorageFileStream isfs = new IsolatedStorageFileStream(fileName,
FileMode.Open, isf))
{
using (StreamReader sr = new StreamReader(isfs))
{
string lineOfData = String.Empty;
while ((lineOfData = sr.ReadLine()) != null)
text += lineOfData;
}
}
return text;
}
catch (IsolatedStorageException ex)
{
return "";
}
}
}
