/// <summary>
/// Gets the candidate <see cref="TypeInfo"/> instances provided by the <see cref="ApplicationPartManager"/>.
/// </summary>
/// <returns>A list of <see cref="TypeInfo"/> instances.</returns>
protected virtual IEnumerable <TypeInfo> GetCandidateTypes()
{
var feature = new ViewComponentFeature();
_partManager.PopulateFeature(feature);
return(feature.ViewComponents);
}
public void GetDescriptor_WithAttribute()
{
// Arrange
var manager = new ApplicationPartManager();
manager.ApplicationParts.Add(new TestPart(typeof(AttributeViewComponent)));
manager.FeatureProviders.Add(new ViewComponentFeatureProvider());
var feature = new ViewComponentFeature();
// Act
manager.PopulateFeature(feature);
// Assert
Assert.Equal(new[] { typeof(AttributeViewComponent).GetTypeInfo() }, feature.ViewComponents.ToArray());
}
/// <summary>
/// Registers discovered view components as services in the <see cref="IServiceCollection"/>.
/// </summary>
/// <param name="builder">The <see cref="IMvcBuilder"/>.</param>
/// <returns>The <see cref="IMvcBuilder"/>.</returns>
public static IMvcBuilder AddViewComponentsAsServices(this IMvcBuilder builder)
{
if (builder == null)
{
throw new ArgumentNullException(nameof(builder));
}
var feature = new ViewComponentFeature();
builder.PartManager.PopulateFeature(feature);
foreach (var viewComponent in feature.ViewComponents.Select(vc => vc.AsType()))
{
builder.Services.TryAddTransient(viewComponent, viewComponent);
}
builder.Services.Replace(ServiceDescriptor.Singleton<IViewComponentActivator, ServiceBasedViewComponentActivator>());
return builder;
}
/// <summary>
/// Gets the candidate <see cref="TypeInfo"/> instances provided by the <see cref="ApplicationPartManager"/>.
/// </summary>
/// <returns>A list of <see cref="TypeInfo"/> instances.</returns>
protected virtual IEnumerable<TypeInfo> GetCandidateTypes()
{
var feature = new ViewComponentFeature();
_partManager.PopulateFeature(feature);
return feature.ViewComponents;
}
