Windows phone gets all the files in the directory specified in the IsolatedStorage

File operations in the isolated storage space in Windows Phone need to be manipulated through classes under System.Io.IsolatedStorage

Get all files under the specified folder:

Parameter: is the path to the specified folder with the wildcard character format: \folder1\*

        list<string> GetFileNames (string  _strfolder)        {            List<string New list<string>();             using (IsolatedStorageFile storage = isolatedstoragefile.getuserstoreforapplication ())            {                returnlst. AddRange (storage. GetFileNames (_strfolder));            }             return returnlst;        }

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If you want to get the specified type, you need to replace the "*" in the file with the "*.png" in the specified format to get all the PNG files under the specified folder.