private string saveImage(string subFolder, int folderId, byte[] imageData)
{
// make sure the subfolder has been created
_persistenceHelper.CreateDirectoryIfNotExists(string.Format("{0}{1}\\", root, subFolder));
var folderPath = String.Format("{0}{1}\\{2}\\", root, subFolder, folderId);
_persistenceHelper.CreateDirectoryIfNotExists(folderPath);
//Create a unique file name
var index = DateTime.Now.Millisecond;
var fileName = String.Format("{0}-{1}.jpg", folderId, index);
var fullPath = String.Format("{0}{1}", folderPath, fileName);
while (File.Exists(fullPath))
{
index++;
fileName = String.Format("{0}-{1}.jpg", folderId, index);
fullPath = String.Format("{0}{1}", folderPath, fileName);
}
//Write the image to the folder
_persistenceHelper.WriteImageData(fullPath, imageData);
return(fileName);
}