Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Xml/System/Xml/Cache/XPathNodeView.cs

@@ -0,0 +1,159 @@
+//------------------------------------------------------------------------------
+// <copyright file="XPathNodeView.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+// <owner current="true" primary="true">derekdb</owner>
+//------------------------------------------------------------------------------
+#if ENABLEDATABINDING
+using System;
+using System.Xml;
+using System.Xml.XPath;
+using System.Xml.Schema;
+using System.Collections;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Diagnostics;
+
+namespace System.Xml.XPath.DataBinding
+{
+    public sealed class XPathNodeView : IXPathNavigable, ICustomTypeDescriptor, INotifyPropertyChanged {
+        XPathDocumentView collection;
+        XPathNode rowNd;
+        object[] cols;
+
+        internal XPathNodeView(XPathDocumentView col, XPathNode rowNd, object[] columns) {
+            this.collection = col;
+            this.rowNd = rowNd;
+            this.cols = columns;
+        }
+
+        //
+        // local methods
+
+        public XPathDocumentView XPathDocumentView {
+            get { return this.collection; }
+        }
+
+        public object this[string fieldname] {
+            get {
+                if (null == fieldname)
+                    throw new ArgumentNullException("fieldname");
+                int col = this.collection.RowShape.FindNamedSubShape(fieldname);
+                if (col == -1)
+                    throw new ArgumentException("fieldname");
+                Debug.Assert(col >= 0 && col < this.cols.Length);
+                return this.cols[col];
+            }
+            set {
+                throw new NotSupportedException();
+            }
+        }
+
+        public object this[int fieldIndex] {
+            get {
+                if (fieldIndex < 0 || fieldIndex >= this.cols.Length)
+                    throw new ArgumentOutOfRangeException("fieldIndex");
+                return this.cols[fieldIndex];
+            }
+            set {
+                throw new NotSupportedException();
+            }
+        }
+
+        //
+        // IXPathNavigable Implementation
+        
+        /// <include file='doc\XPathNodeView.uex' path='docs/doc[@for="XPathNodeView.CreateNavigator"]/*' />
+        public XPathNavigator CreateNavigator() {
+            XPathNode nd = this.rowNd;
+            if (null != nd)
+                return new XPathDocumentNavigator(this.rowNd, null);
+            return null;
+        }
+
+        //
+        // ICustomTypeDescriptor Implementation
+        
+        /// <include file='doc\XPathNodeView.uex' path='docs/doc[@for="XPathNodeView.GetAttributes"]/*' />
+        public AttributeCollection GetAttributes() {
+            return new AttributeCollection((Attribute[])null);
+        }
+        
+        /// <include file='doc\XPathNodeView.uex' path='docs/doc[@for="XPathNodeView.GetClassName"]/*' />
+        public String GetClassName() {
+            return collection.RowShape.Name;
+        }
+        
+        /// <include file='doc\XPathNodeView.uex' path='docs/doc[@for="XPathNodeView.GetComponentName"]/*' />
+        public String GetComponentName() {
+            return null;
+        }
+
+        /// <include file='doc\XPathNodeView.uex' path='docs/doc[@for="XPathNodeView.GetConverter"]/*' />
+        public TypeConverter GetConverter() {
+            return null;
+        }
+
+        /// <include file='doc\XPathNodeView.uex' path='docs/doc[@for="XPathNodeView.GetDefaultEvent"]/*' />
+        public EventDescriptor GetDefaultEvent() {
+            return null;
+        }
+
+        /// <include file='doc\XPathNodeView.uex' path='docs/doc[@for="XPathNodeView.GetDefaultProperty"]/*' />
+        public PropertyDescriptor GetDefaultProperty() {
+            return null;
+        }
+
+        /// <include file='doc\XPathNodeView.uex' path='docs/doc[@for="XPathNodeView.GetEditor"]/*' />
+        public object GetEditor(Type editorBaseType) {
+            return null;
+        }
+
+        /// <include file='doc\XPathNodeView.uex' path='docs/doc[@for="XPathNodeView.GetEvents"]/*' />
+        public EventDescriptorCollection GetEvents() {
+            return null;
+        }
+
+        /// <include file='doc\XPathNodeView.uex' path='docs/doc[@for="XPathNodeView.GetEvents2"]/*' />
+        public EventDescriptorCollection GetEvents(Attribute[] attributes) {
+            return null;
+        }
+
+        /// <include file='doc\XPathNodeView.uex' path='docs/doc[@for="XPathNodeView.GetPropertyOwner"]/*' />
+        public object GetPropertyOwner(PropertyDescriptor pd) {
+            return null;
+        }
+
+        /// <include file='doc\XPathNodeView.uex' path='docs/doc[@for="XPathNodeView.GetProperties"]/*' />
+        public PropertyDescriptorCollection GetProperties() {
+            return collection.GetItemProperties(null);
+        }
+
+        /// <include file='doc\XPathNodeView.uex' path='docs/doc[@for="XPathNodeView.GetProperties2"]/*' />
+        public PropertyDescriptorCollection GetProperties(Attribute[] attributes) {
+            return collection.GetItemProperties(null);
+        }
+
+
+        //
+        // INotifyPropertyChanged Implementation
+
+        /// <include file='doc\XPathNodeView.uex' path='docs/doc[@for="XPathNodeView.PropertyChanged"]/*' />
+        public event PropertyChangedEventHandler PropertyChanged {
+            add {
+                throw new NotSupportedException("INotifyPropertyChanged.PropertyChanged");
+            }
+            remove {
+                throw new NotSupportedException("INotifyPropertyChanged.PropertyChanged");
+            }
+        }
+
+        //
+        // internal implementation
+
+        // used by XPathNodeViewPropertyDescriptor to access values
+        internal XPathDocumentView Collection { get { return this.collection; } }
+        internal object Column(int index) { return cols[index]; }
+    }
+}
+#endif