private ISBN(ISBN_Prefix prefix, int groupIdentifier, string publisherCode, string catalogueNumber)
{
_prefix = prefix;
_groupIdentifier = groupIdentifier;
_publisherCode = publisherCode.PadLeft(2, '0');
int catalogueNumberLength =
ISBN_LENGTH
- ((short)_prefix).ToString().Length
- _groupIdentifier.ToString().Length
- _publisherCode.Length
- 1; // Check Digit
_catalogueNumber = catalogueNumberLength > 0 ?
catalogueNumber.PadLeft(catalogueNumberLength, '0') :
catalogueNumber;
StringBuilder sb;
try
{
sb = new StringBuilder($"{(short)_prefix}{_groupIdentifier}{_publisherCode}{_catalogueNumber}X",
ISBN_LENGTH);
}
catch (ArgumentOutOfRangeException)
{
throw new ArgumentException(
$"Length of ISBN must be exactly {ISBN_LENGTH - 1} (without check digit). ISBN: {ToString()}");
}
_checkDigit = CalcCheckDigit(sb);
sb[sb.Length - 1] = char.Parse(_checkDigit.ToString());
_value = ulong.Parse(sb.ToString());
}
private void SetISBNGroupItemsSource(ISBN_Prefix prefix)
{
switch (prefix)
{
case ISBN_Prefix.ISBN_978:
cboISBNGroup.ItemsSource = Enum.GetValues(typeof(ISBN_978_GroupIdentifier));
break;
case ISBN_Prefix.ISBN_979:
cboISBNGroup.ItemsSource = Enum.GetValues(typeof(ISBN_979_GroupIdentifier));
break;
default:
break;
}
}
private void SetISBNGroupFilterItemsSource(ISBN_Prefix prefix)
{
switch (prefix)
{
case ISBN_Prefix.ISBN_978:
cboISBNGroupFilter.ItemsSource = Entities
.Where(i => i.ISBN.Prefix == prefix)
.Select(i => (ISBN_978_GroupIdentifier)i.ISBN.GroupIdentifier).Distinct();
break;
case ISBN_Prefix.ISBN_979:
cboISBNGroupFilter.ItemsSource = Entities
.Where(i => i.ISBN.Prefix == prefix)
.Select(i => (ISBN_979_GroupIdentifier)i.ISBN.GroupIdentifier).Distinct();
break;
default:
break;
}
}
