private void Save(string filename)
{
if (_sheet.Image == null)
{
MessageBox.Show("No image has been chosen; cannot save.");
return;
}
using (var fs = new FileStream(filename, FileMode.Create, FileAccess.ReadWrite))
{
var saved = _sheet.SerializeWithImage();
fs.Write(saved, 0, saved.Length);
fs.Flush();
}
_hasChanges = false;
}
