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/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / WebForms / System / Web / UI / Design / XmlDocumentViewSchema.cs / 1 / XmlDocumentViewSchema.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.Design { using System.Collections; using System.Collections.Specialized; using System.Diagnostics; using System.Xml; using System.Xml.XPath; ////// A class to expose hierarchical schema from an XmlDocument object. /// This is used by data source designers to enable data-bound to /// traverse their schema at design time. /// internal sealed class XmlDocumentViewSchema : IDataSourceViewSchema { private string _name; private OrderedDictionary _children; private ArrayList _attrs; private IDataSourceViewSchema[] _viewSchemas; private IDataSourceFieldSchema[] _fieldSchemas; private bool _includeSpecialSchema; public XmlDocumentViewSchema(string name, Pair data, bool includeSpecialSchema) { _includeSpecialSchema = includeSpecialSchema; Debug.Assert(name != null && name.Length > 0); Debug.Assert(data != null); _children = (OrderedDictionary)data.First; Debug.Assert(_children != null); _attrs = (ArrayList)data.Second; Debug.Assert(_attrs != null); _name = name; } public string Name { get { return _name; } } public IDataSourceViewSchema[] GetChildren() { if (_viewSchemas == null) { _viewSchemas = new IDataSourceViewSchema[_children.Count]; int i = 0; foreach (DictionaryEntry de in _children) { _viewSchemas[i] = new XmlDocumentViewSchema((string)de.Key, (Pair)de.Value, _includeSpecialSchema); i++; } } return _viewSchemas; } public IDataSourceFieldSchema[] GetFields() { if (_fieldSchemas == null) { // The three extra slots are for the "special" field names int specialSchemaCount = (_includeSpecialSchema ? 3 : 0); _fieldSchemas = new IDataSourceFieldSchema[_attrs.Count + specialSchemaCount]; if (_includeSpecialSchema) { _fieldSchemas[0] = new XmlDocumentFieldSchema("#Name"); _fieldSchemas[1] = new XmlDocumentFieldSchema("#Value"); _fieldSchemas[2] = new XmlDocumentFieldSchema("#InnerText"); } for (int i = 0; i < _attrs.Count; i++) { _fieldSchemas[i + specialSchemaCount] = new XmlDocumentFieldSchema((string)_attrs[i]); } } return _fieldSchemas; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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