1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
//------------------------------------------------------------------------------
// <copyright file="XmlChildEnumerator.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
// <owner current="true" primary="true">Microsoft</owner>
//------------------------------------------------------------------------------
namespace System.Xml {
using System.Collections;
internal sealed class XmlChildEnumerator: IEnumerator {
internal XmlNode container;
internal XmlNode child;
internal bool isFirst;
internal XmlChildEnumerator( XmlNode container ) {
this.container = container;
this.child = container.FirstChild;
this.isFirst = true;
}
bool IEnumerator.MoveNext() {
return this.MoveNext();
}
internal bool MoveNext() {
if (isFirst) {
child = container.FirstChild;
isFirst = false;
}
else if (child != null) {
child = child.NextSibling;
}
return child != null;
}
void IEnumerator.Reset() {
isFirst = true;
child = container.FirstChild;
}
object IEnumerator.Current {
get {
return this.Current;
}
}
internal XmlNode Current {
get {
if (isFirst || child == null)
throw new InvalidOperationException(Res.GetString(Res.Xml_InvalidOperation));
return child;
}
}
}
}
|
