Save programatically in C#

Save is a bit odd. It will throw an exception if the user chooses not to overwrite an existing file. Here's my solution:

string sFullFileName = CInvSettings.sPlmCacheDir + m_Spec.sBatCode + ".IAM";

if (System.IO.File.Exists (sFullFileName))

{

   // I need to delete the file if it already exists else AsmDoc.Save will throw an exception

   // if the user says no to ovewrite.

   DialogResult Res = MessageBox.Show(m_Spec.sBatCode + " esiste, sovrascrivere?", "Sovrascrivere?",MessageBoxButtons.YesNo);

   if (Res == DialogResult.Yes)

   {

       // Stop Save() from thowing an exception

       System.IO.File.Delete(sFullFileName);

   }

   else

   {

       Cursor.Current = Cursors.Default;

       return;

   }

}

AsmDoc.FullFileName = sFullFileName;

AsmDoc.Save();