XmlIterators.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / XmlUtils / System / Xml / Xsl / Runtime / XmlIterators.cs / 1305376 / XmlIterators.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// [....] 
//-----------------------------------------------------------------------------
using System; 
using System.Xml; 
using System.Xml.XPath;
using System.ComponentModel; 

namespace System.Xml.Xsl.Runtime {

    ///  
    /// Iterators that use containment to control a nested iterator return one of the following values from MoveNext().
    ///  
    [EditorBrowsable(EditorBrowsableState.Never)] 
    public enum IteratorResult {
        NoMoreNodes,                // Iteration is complete; there are no more nodes 
        NeedInputNode,              // The next node needs to be fetched from the contained iterator before iteration can continue
        HaveCurrentNode,            // This iterator's Current property is set to the next node in the iteration
    };
 

    ///  
    /// Tokenize a string containing IDREF values and deref the values in order to get a list of ID elements. 
    /// 
    [EditorBrowsable(EditorBrowsableState.Never)] 
    public struct IdIterator {
        private XPathNavigator navCurrent;
        private string[] idrefs;
        private int idx; 

        public void Create(XPathNavigator context, string value) { 
            this.navCurrent = XmlQueryRuntime.SyncToNavigator(this.navCurrent, context); 
            this.idrefs = XmlConvert.SplitString(value);
            this.idx = -1; 
        }

        public bool MoveNext() {
            do { 
                this.idx++;
                if (this.idx >= idrefs.Length) 
                    return false; 
            }
            while (!this.navCurrent.MoveToId(this.idrefs[this.idx])); 

            return true;
        }
 
        /// 
        /// Return the current result navigator.  This is only defined after MoveNext() has returned true. 
        ///  
        public XPathNavigator Current {
            get { return this.navCurrent; } 
        }
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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