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//------------------------------------------------------------------------------
// <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
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