// valid for multi-valued types
internal override void NewElement(SmiEventSink sink)
{
#if DEBUG
SkipPossibleDefaultedColumns(ReadyForToken);
Debug.Assert(ReadyForToken == _currentField, "Not on first or last column!");
#endif
// For TVP types, write new-row token
Debug.Assert(_metaData.IsMultiValued, "Unsupported call for single-valued types");
_stateObj.WriteByte(TdsEnums.TVP_ROW_TOKEN);
#if DEBUG
_currentField = 0;
#endif
}
// Set value to null
// valid for all types
internal void SetDBNull()
{
Debug.Assert(!_plpUnknownSent, "Setting a column to null that we already stated sending!");
if (_isPlp)
{
_stateObj.Parser.WriteUnsignedLong(TdsEnums.SQL_PLP_NULL, _stateObj);
}
else
{
switch (_metaData.SqlDbType)
{
case SqlDbType.BigInt:
case SqlDbType.Bit:
case SqlDbType.DateTime:
case SqlDbType.Decimal:
case SqlDbType.Float:
case SqlDbType.Int:
case SqlDbType.Money:
case SqlDbType.Real:
case SqlDbType.UniqueIdentifier:
case SqlDbType.SmallDateTime:
case SqlDbType.SmallInt:
case SqlDbType.SmallMoney:
case SqlDbType.TinyInt:
case SqlDbType.Date:
case SqlDbType.Time:
case SqlDbType.DateTime2:
case SqlDbType.DateTimeOffset:
_stateObj.WriteByte(TdsEnums.FIXEDNULL);
break;
case SqlDbType.Binary:
case SqlDbType.Char:
case SqlDbType.Image:
case SqlDbType.NChar:
case SqlDbType.NText:
case SqlDbType.NVarChar:
case SqlDbType.Text:
case SqlDbType.Timestamp:
case SqlDbType.VarBinary:
case SqlDbType.VarChar:
_stateObj.Parser.WriteShort(TdsEnums.VARNULL, _stateObj);
break;
case SqlDbType.Udt:
case SqlDbType.Xml:
Debug.Fail("PLP-only types shouldn't get to this point. Type: " + _metaData.SqlDbType);
break;
case SqlDbType.Variant:
_stateObj.Parser.WriteInt(TdsEnums.FIXEDNULL, _stateObj);
break;
case SqlDbType.Structured:
Debug.Fail("Not yet implemented. Not needed until Structured UDTs");
break;
default:
Debug.Fail("Unexpected SqlDbType: " + _metaData.SqlDbType);
break;
}
}
}
