//called just after GetValue().
public void SaveValue()
{
//to prevent decoding to fail
if (!string.IsNullOrWhiteSpace(encodedstring))
{
int mod4 = encodedstring.Length % 4;
if (mod4 > 0)
{
encodedstring += new string('=', 4 - mod4);
}
try
{
byte[] bytes = Convert.FromBase64String(encodedstring);
if (bytes != null)
{
IFileRepository repo = new FileRepository();
repo.SaveMedia(filename, bytes);
if (!string.IsNullOrWhiteSpace(_context.OldValue))
{
repo.DeleteMedia(_context.OldValue);
}
}
}
catch (FormatException)
{
}
catch (ArgumentNullException)
{
}
}
}