17 references to Null
System.Data.Common (17)
System\Data\Common\SQLConvert.cs (1)
298return SqlString.Null;
System\Data\Common\SQLTypes\SQLStringStorage.cs (2)
19: base(column, typeof(SqlString), SqlString.Null, SqlString.Null, StorageType.SqlString)
System\Data\SQLTypes\SQLChars.cs (1)
399return IsNull ? SqlString.Null : new string(Value);
System\Data\SQLTypes\SQLString.cs (13)
217/// Gets whether the <see cref='System.Data.SqlTypes.SqlString.Value'/> of the <see cref='System.Data.SqlTypes.SqlString'/> is <see cref='System.Data.SqlTypes.SqlString.Null'/>. 353return SqlString.Null; 460return x.IsNull ? Null : new SqlString((x.Value).ToString()); 466return x.IsNull ? Null : new SqlString((x.Value).ToString((IFormatProvider)null!)); 472return x.IsNull ? Null : new SqlString((x.Value).ToString((IFormatProvider)null!)); 478return x.IsNull ? Null : new SqlString((x.Value).ToString((IFormatProvider)null!)); 484return x.IsNull ? Null : new SqlString((x.Value).ToString((IFormatProvider)null!)); 490return x.IsNull ? Null : new SqlString((x.Value).ToString((IFormatProvider)null!)); 496return x.IsNull ? Null : new SqlString((x.Value).ToString((IFormatProvider)null!)); 502return x.IsNull ? Null : new SqlString(x.ToString()); 508return x.IsNull ? Null : new SqlString(x.ToString()); 514return x.IsNull ? Null : new SqlString(x.ToString()); 520return x.IsNull ? Null : new SqlString(x.ToString());