private void AddItemToParent(XElement parent, ImageItem item)
{
ImageOperations operationsOnImage = new ImageOperations();
BitmapImage image = operationsOnImage.ResizeImage(item.ChosenImage, OperationsOnSettings.Instance.PhotoWidth, OperationsOnSettings.Instance.PhotoHeight, 100, true);
byte[] imageByte = operationsOnImage.ConvertImageToBytes(image);
System.Text.Encoding enc = System.Text.Encoding.Unicode;
string imageString = System.Convert.ToBase64String(imageByte);
XElement imageElement = new XElement("img_data");
imageElement.Value = imageString;
parent.Add(imageElement);
}