/// <summary> /// Adds a XML configuration source to <paramref name="builder"/>. /// </summary> /// <param name="builder">The <see cref="IConfigurationBuilder"/> to add to.</param> /// <param name="provider">The <see cref="IFileProvider"/> to use to access the file.</param> /// <param name="path">Path relative to the base path stored in /// <see cref="IConfigurationBuilder.Properties"/> of <paramref name="builder"/>.</param> /// <param name="optional">Whether the file is optional.</param> /// <param name="reloadOnChange">Whether the configuration should be reloaded if the file changes.</param> /// <returns>The <see cref="IConfigurationBuilder"/>.</returns> public static IConfigurationBuilder AddXmlFile(this IConfigurationBuilder builder, IFileProvider provider, string path, bool optional, bool reloadOnChange) { if (builder == null) { throw new ArgumentNullException(nameof(builder)); } if (string.IsNullOrEmpty(path)) { throw new ArgumentException("Error_InvalidFilePath", nameof(path)); } var source = new XmlConfigurationSource { FileProvider = provider, Path = path, Optional = optional, ReloadOnChange = reloadOnChange }; source.ResolveFileProvider(); builder.Add(source); return(builder); }