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//------------------------------------------------------------------------------
// <copyright file="ElementInformation.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
using System;
using System.Configuration;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Collections;
using System.Runtime.Serialization;
namespace System.Configuration
{
// ElementInformation
//
// Expose information on Configuration Elements, and the
// properties that they contain
//
public sealed class ElementInformation
{
private ConfigurationElement _thisElement;
private PropertyInformationCollection _internalProperties;
private ConfigurationException[] _errors;
internal ElementInformation(ConfigurationElement thisElement) {
_thisElement = thisElement;
}
// Properties
//
// Retrieve Collection of properties within this element
//
public PropertyInformationCollection Properties
{
get {
if (_internalProperties == null) {
_internalProperties = new PropertyInformationCollection(_thisElement);
}
return _internalProperties;
}
}
// IsInherited
//
// Was this element inheritted, or was the property actually
// set here
//
public bool IsPresent {
get {
return _thisElement.ElementPresent;
}
}
// IsLocked
//
// Is this property locked?
//
public bool IsLocked {
get {
return (((_thisElement.ItemLocked & ConfigurationValueFlags.Locked) != 0) &&
((_thisElement.ItemLocked & ConfigurationValueFlags.Inherited) != 0));
}
}
// IsCollection
//
// Is this element a collection?
//
public bool IsCollection {
get {
ConfigurationElementCollection collection = _thisElement as ConfigurationElementCollection;
if (collection == null) { // Try the default collection
if (_thisElement.Properties.DefaultCollectionProperty != null) { // this is not a collection but it may contain a default collection
collection = _thisElement[_thisElement.Properties.DefaultCollectionProperty] as ConfigurationElementCollection;
}
}
return (collection != null);
}
}
// Internal method to fix SetRawXML defect...
internal PropertySourceInfo PropertyInfoInternal() {
return _thisElement.PropertyInfoInternal(_thisElement.ElementTagName);
}
internal void ChangeSourceAndLineNumber(PropertySourceInfo sourceInformation) {
_thisElement.Values.ChangeSourceInfo(_thisElement.ElementTagName, sourceInformation);
}
// Source
//
// What is the source file where this data came from
//
public string Source {
get {
PropertySourceInfo psi = _thisElement.Values.GetSourceInfo(_thisElement.ElementTagName);
if (psi == null) {
return null;
}
return psi.FileName;
}
}
// LineNumber
//
// What is the line number associated with the source
//
// Note:
// 1 is the first line in the file. 0 is returned when there is no
// source
//
public int LineNumber {
get {
PropertySourceInfo psi = _thisElement.Values.GetSourceInfo(_thisElement.ElementTagName);
if (psi == null) {
return 0;
}
return psi.LineNumber;
}
}
// Type
//
// What is the type for the element
//
public Type Type {
get {
return _thisElement.GetType();
}
}
// Validator
//
// What is the validator to validate the element?
//
public ConfigurationValidatorBase Validator {
get {
return _thisElement.ElementProperty.Validator;
}
}
// GetReadOnlyErrorsList
//
// Get a Read Only list of the exceptions for this
// element
//
private ConfigurationException[] GetReadOnlyErrorsList() {
ArrayList arrayList;
int count;
ConfigurationException[] exceptionList;
arrayList = _thisElement.GetErrorsList();
count = arrayList.Count;
// Create readonly array
exceptionList = new ConfigurationException[arrayList.Count];
if (count != 0) {
arrayList.CopyTo(exceptionList, 0);
}
return exceptionList;
}
// Errors
//
// Retrieve the _errors for this element and sub elements
//
public ICollection Errors {
get {
if (_errors == null) {
_errors = GetReadOnlyErrorsList();
}
return _errors;
}
}
}
}
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