Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.Xml/System/Xml/Cache/XPathNodeViewPropertyDescriptor.cs

@@ -0,0 +1,101 @@
+//------------------------------------------------------------------------------
+// <copyright file="XPathNodeViewPropertyDescriptor.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+// <owner current="true" primary="true">[....]</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
+{
+    internal class XPathNodeViewPropertyDescriptor : PropertyDescriptor {
+        Shape rowShape;
+        Shape colShape;
+        int colIndex;
+
+        internal XPathNodeViewPropertyDescriptor(Shape rowShape) 
+            : base( rowShape.Name, null) {
+            this.rowShape = rowShape;
+            this.colShape = rowShape;
+            this.colIndex = 0;
+        }
+
+        internal XPathNodeViewPropertyDescriptor(Shape rowShape, Shape colShape, int colIndex) 
+            : base( colShape.Name, null) {
+            this.rowShape = rowShape;
+            this.colShape = colShape;
+            this.colIndex = colIndex;
+        }
+
+        public Shape Shape { 
+            get { return colShape; } 
+        }
+
+        public override Type ComponentType {
+            get {  return null;  }
+        }
+
+        public override string Name {
+            get {  return this.colShape.Name;  }
+        }
+
+        public override bool IsReadOnly {
+            get { return true;  }
+        }
+
+        public override Type PropertyType {
+            get { 
+                return this.colShape.IsNestedTable 
+                    ? typeof(XPathDocumentView) 
+                    : typeof(string); 
+            }
+        }
+
+        public override bool CanResetValue(object o) {
+            return false;
+        }
+
+        public override object GetValue(object o) {
+            if (null == o)
+                throw new ArgumentNullException("XPathNodeViewPropertyDescriptor.GetValue");
+            XPathNodeView xiv = (XPathNodeView)o;
+            if (xiv.Collection.RowShape != this.rowShape)
+                throw new ArgumentException("XPathNodeViewPropertyDescriptor.GetValue");
+            object val = xiv.Column(this.colIndex);
+            XPathNode nd = val as XPathNode;
+            if (null != nd) {
+                XPathDocumentNavigator nav = new XPathDocumentNavigator(nd, null);
+                XmlSchemaType xst = nd.SchemaType;
+                XmlSchemaComplexType xsct = xst as XmlSchemaComplexType;
+                if (null == xst || ( (null != xsct) && xsct.IsMixed) ) {
+                    return nav.InnerXml;
+                }
+                else {
+                    return nav.TypedValue;
+                }
+            }
+            return val;
+        }
+
+        public override void ResetValue(object o) {
+            throw new NotImplementedException();
+        }
+
+        public override void SetValue(object o, object value) {
+            throw new NotImplementedException();
+        }
+
+        public override bool ShouldSerializeValue(object o) {
+            return false;
+        }
+    }
+}
+#endif