//Checks for another record with the same ISBN when the user inserts an ISBN number
public bool checkForDuplicateRecord(string ISBN)
{
string nextRecord;
Boolean isEndOfFile = true;
Boolean success;
int countProcessedRecords = 0;
nextRecord = Globals.BookStore.getCurrentBookFile.getNextRecord(ref isEndOfFile);
while (!isEndOfFile)
{
countProcessedRecords++;
success = Book.createBookObject(nextRecord);
if (success != true)
{
MessageBox.Show("Unable to create book object.", "Book Creation Unsuccessfu;", MessageBoxButtons.OK);
return(false);
}
if (!Book.bookMatch(ISBN))
{
//Need to put next record here in able to see all the records before the one you are updating or deleting
updatedBookFile.putNextRecord(nextRecord);
nextRecord = getCurrentBookFile.getNextRecord(ref isEndOfFile);
}
else
{
return(true);
}
}
return(false);
}
