/// <summary>
/// Gets an ordered list of child configuration sections.
/// </summary>
/// <param name="configuration">The configuration item containing the list.</param>
/// <param name="key">The subsection from which to get the ordered list of children.</param>
/// <returns>The desired list of configuration subsections.</returns>
/// <exception cref="System.ArgumentNullException">
/// Thrown if <paramref name="configuration"/> or <paramref name="key"/> is <see langword="null"/>.
/// </exception>
/// <exception cref="System.InvalidOperationException">
/// Thrown if any of the subsections lack an integer-valued <see cref="IConfigurationSection.Key"/>.
/// </exception>
internal static IEnumerable <IConfigurationSection> GetOrderedSubsections(this IConfiguration configuration, string key)
{
if (configuration == null)
{
throw new ArgumentNullException(nameof(configuration));
}
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
var configurationSection = configuration.GetSection(key);
foreach (var section in configurationSection.GetChildren())
{
if (Int32.TryParse(section.Key, out var _))
{
yield return(section);
}
else
{
throw new InvalidOperationException(ConfigurationResources.FormatCollectionMustBeOrderedByName(key, configurationSection.Path));
}
}
}
protected override void Arrange()
{
base.Arrange();
frameworkElement = new FrameworkElement();
ConfigurationResources.SetMergedDictionaries(frameworkElement, "dictionary3;dictionary1");
}
protected override void Act()
{
frameworkElement = new FrameworkElement();
ConfigurationResources.SetMergedDictionaries(frameworkElement, " testDictionaryOne ");
}
protected override void Act()
{
ConfigurationResources.SetMergedDictionaries(frameworkElement, "dictionary3");
ConfigurationResources.SetMergedDictionaries(frameworkElement, "dictionary2");
}
