21 lines
659 B
C#
21 lines
659 B
C#
namespace System.Data
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{
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partial class Index
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{
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internal delegate int ComparisonBySelector<TKey,TRow>(TKey key, TRow row) where TRow:DataRow;
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/// <summary>This method exists for LinqDataView to keep a level of abstraction away from the RBTree</summary>
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internal Range FindRecords<TKey,TRow>(ComparisonBySelector<TKey,TRow> comparison, TKey key) where TRow:DataRow
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{
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int x = _records.root;
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while (IndexTree.NIL != x)
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{
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int c = comparison(key, (TRow)_table._recordManager[_records.Key(x)]);
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if (c == 0) { break; }
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if (c < 0) { x = _records.Left(x); }
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else { x = _records.Right(x); }
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}
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return GetRangeFromNode(x);
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}
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}
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} |