Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Sys / System / Configuration / NameValueFileSectionHandler.cs / 1 / NameValueFileSectionHandler.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Configuration { using System.Configuration.Internal; using System.IO; using System.Xml; using System.Runtime.Versioning; ////// /// public class NameValueFileSectionHandler : IConfigurationSectionHandler { [ResourceExposure(ResourceScope.None)] [ResourceConsumption(ResourceScope.Machine, ResourceScope.Machine)] public object Create(object parent, object configContext, XmlNode section) { object result = parent; // parse XML XmlNode fileAttribute = section.Attributes.RemoveNamedItem("file"); result = NameValueSectionHandler.CreateStatic(result, section); if (fileAttribute != null && fileAttribute.Value.Length != 0) { string filename = null; filename = fileAttribute.Value; IConfigErrorInfo configXmlNode = fileAttribute as IConfigErrorInfo; if (configXmlNode == null) { return null; } string configFile = configXmlNode.Filename; string directory = Path.GetDirectoryName(configFile); string sourceFileFullPath = Path.Combine(directory, filename); if (File.Exists(sourceFileFullPath)) { ConfigXmlDocument doc = new ConfigXmlDocument(); try { doc.Load(sourceFileFullPath); } catch (XmlException e) { throw new ConfigurationErrorsException(e.Message, e, sourceFileFullPath, e.LineNumber); } if (section.Name != doc.DocumentElement.Name) { throw new ConfigurationErrorsException( SR.GetString(SR.Config_name_value_file_section_file_invalid_root, section.Name), doc.DocumentElement); } result = NameValueSectionHandler.CreateStatic(result, doc.DocumentElement); } } return result; } } }/// This section handler allows <appSettings file="user.config" /> /// The file pointed to by the file= attribute is read as if it is /// an appSettings section in the config file. /// Note: the user.config file must have its root element match the /// section referring to it. So if appSettings has a file="user.config" /// attribute the root element in user.config must also be named appSettings. /// ///
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