ChildrenQuery.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Xml / System / Xml / XPath / Internal / ChildrenQuery.cs / 1 / ChildrenQuery.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// [....] 
//-----------------------------------------------------------------------------
 
namespace MS.Internal.Xml.XPath { 
    using System;
    using System.Xml; 
    using System.Xml.XPath;
    using System.Diagnostics;
    using System.Globalization;
    using System.Xml.Xsl; 
    using System.Collections;
 
    internal  class ChildrenQuery : BaseAxisQuery { 
        XPathNodeIterator iterator = XPathEmptyIterator.Instance;
 
        public ChildrenQuery(Query qyInput, string name, string prefix, XPathNodeType type) : base (qyInput, name, prefix, type) {}
        protected ChildrenQuery(ChildrenQuery other) : base(other) {
            this.iterator = Clone(other.iterator);
        } 

        public override void Reset() { 
            iterator = XPathEmptyIterator.Instance; 
            base.Reset();
        } 

        public override XPathNavigator Advance() {
            while (!iterator.MoveNext()) {
                XPathNavigator input = qyInput.Advance(); 
                if (input == null) {
                    return null; 
                } 
                if (NameTest) {
                    if (TypeTest == XPathNodeType.ProcessingInstruction) { 
                        iterator = new IteratorFilter(input.SelectChildren(TypeTest), Name);
                    } else {
                        iterator = input.SelectChildren(Name, Namespace);
                    } 
                } else {
                    iterator = input.SelectChildren(TypeTest); 
                } 
                position = 0;
            } 
            position ++;
            currentNode = iterator.Current;
            return currentNode;
        } // Advance 

        public sealed override XPathNavigator MatchNode(XPathNavigator context) { 
            if (context != null) { 
                if (matches(context)) {
                    XPathNavigator temp = context.Clone(); 
                    if (temp.NodeType != XPathNodeType.Attribute && temp.MoveToParent()) {
                        return qyInput.MatchNode(temp);
                    }
                    return null; 
                }
            } 
            return null; 
        }
 
        public override XPathNodeIterator Clone() { return new ChildrenQuery(this); }
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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