public bool Save()
{
if (Dirty)
{
if (FilePath == null)
{
var d = new SaveFileDialog();
d.Filter = Filter;
if (d.ShowDialog(OwnerForm) != DialogResult.OK)
{
return(false);
}
FilePath = d.FileName;
}
using (var stm = new FileStream(FilePath, FileMode.Create)) {
DocumentData.Write(stm);
}
Dirty = false;
}
return(true);
}
