72 lines
2.9 KiB
C#
72 lines
2.9 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="NameValueFileSectionHandler.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//------------------------------------------------------------------------------
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namespace System.Configuration {
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using System.Configuration.Internal;
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using System.IO;
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using System.Xml;
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using System.Runtime.Versioning;
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/// <internalonly/>
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/// <devdoc>
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/// <para>
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/// This section handler allows <appSettings file="user.config" />
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/// The file pointed to by the file= attribute is read as if it is
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/// an appSettings section in the config file.
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/// Note: the user.config file must have its root element match the
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/// section referring to it. So if appSettings has a file="user.config"
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/// attribute the root element in user.config must also be named appSettings.
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/// </para>
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/// </devdoc>
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public class NameValueFileSectionHandler : IConfigurationSectionHandler {
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[ResourceExposure(ResourceScope.None)]
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[ResourceConsumption(ResourceScope.Machine, ResourceScope.Machine)]
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public object Create(object parent, object configContext, XmlNode section) {
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object result = parent;
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// parse XML
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XmlNode fileAttribute = section.Attributes.RemoveNamedItem("file");
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result = NameValueSectionHandler.CreateStatic(result, section);
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if (fileAttribute != null && fileAttribute.Value.Length != 0) {
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string filename = null;
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filename = fileAttribute.Value;
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IConfigErrorInfo configXmlNode = fileAttribute as IConfigErrorInfo;
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if (configXmlNode == null) {
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return null;
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}
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string configFile = configXmlNode.Filename;
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string directory = Path.GetDirectoryName(configFile);
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string sourceFileFullPath = Path.Combine(directory, filename);
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if (File.Exists(sourceFileFullPath)) {
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ConfigXmlDocument doc = new ConfigXmlDocument();
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try {
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doc.Load(sourceFileFullPath);
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}
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catch (XmlException e) {
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throw new ConfigurationErrorsException(e.Message, e, sourceFileFullPath, e.LineNumber);
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}
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if (section.Name != doc.DocumentElement.Name) {
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throw new ConfigurationErrorsException(
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SR.GetString(SR.Config_name_value_file_section_file_invalid_root, section.Name),
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doc.DocumentElement);
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}
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result = NameValueSectionHandler.CreateStatic(result, doc.DocumentElement);
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}
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}
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return result;
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}
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}
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}
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