20 references to IsNull
System.Data.Common (20)
System\Data\DataRelation.cs (1)
264if (range.IsNull)
System\Data\DataTable.cs (4)
2133return range.IsNull ? null : _recordManager[ndx.GetRecord(range.Min)]; 3051if (range.IsNull) 3062if (range.IsNull) 5034if (!result.IsNull)
System\Data\DataView.cs (2)
769if (range.IsNull) 1016if (!recordRange.IsNull)
System\Data\ForeignKeyConstraint.cs (11)
240if (!range.IsNull) 282if (!range.IsNull) 297if (!range.IsNull) 318if (!range.IsNull) 337if (!range.IsNull) 373if (!range.IsNull) 389if (!range.IsNull) 427if (!range.IsNull) 438if (!range.IsNull) 458if (!range.IsNull) 476if (!range.IsNull)
System\Data\Range.cs (2)
23public int Count => IsNull ? 0 : _max - _min + 1; 47if (IsNull)