50 lines
1.6 KiB
C#
50 lines
1.6 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="BaseTreeIterator.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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// <owner current="true" primary="true">Microsoft</owner>
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// <owner current="true" primary="false">Microsoft</owner>
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//------------------------------------------------------------------------------
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namespace System.Xml {
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// Iterates over non-attribute nodes
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internal abstract class BaseTreeIterator {
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protected DataSetMapper mapper;
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internal BaseTreeIterator( DataSetMapper mapper ) {
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this.mapper = mapper;
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}
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internal abstract void Reset();
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internal abstract XmlNode CurrentNode { get; }
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internal abstract bool Next();
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internal abstract bool NextRight();
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internal bool NextRowElement() {
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while ( Next() ) {
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if ( OnRowElement() )
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return true;
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}
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return false;
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}
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internal bool NextRightRowElement() {
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if ( NextRight() ) {
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if ( OnRowElement() )
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return true;
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return NextRowElement();
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}
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return false;
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}
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// Returns true if the current node is on a row element (head of a region)
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internal bool OnRowElement() {
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XmlBoundElement be = CurrentNode as XmlBoundElement;
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return (be != null) && (be.Row != null);
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}
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}
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}
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