Black.Beard.ComponentModel.Attributes 1.0.196

Black.Beard.ComponentModel

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PropertyDescriptors

Method helper for resolve types and methods.

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Method helper for resolve types and methods.

factory for create fast activator & fast method calling

Provider List

 // the provider that provide the list of items
 public class TestProviderList : ProviderListBase<CultureInfo>
 {

 /// <summary>
 /// Get the list of items
 /// </summary>
 /// <returns></returns>
 public override IEnumerable<ListItem<CultureInfo>> GetItems()
 {

 List<ListItem<CultureInfo>> result = new List<ListItem<CultureInfo>>();

 var items = CultureInfo.GetCultures(CultureTypes.AllCultures);

 foreach (var item in items)
 {
 var tag = item;
 var display = item.EnglishName;
 var key = item.IetfLanguageTag;

 result.Add(CreateItem(tag, display, key, a =>
 {
 a.Name = item.Name;
 }));
 }
 return result;

 }

 }

 // a class that use the provider
 public class Class1
 {
 [ListProvider(typeof(TestProviderList))]
 public CultureInfo Culture { get; set; }
 }

 // code for call the list provider
 var class1 = new Class1()
 {
 Culture = CultureInfo.CurrentCulture,
 };

 var property = typeof(Class1).GetPropertyDescriptors("Culture").First();
 var attribute = property.GetAttribute<ListProviderAttribute>();
 var provider = attribute.GetProvider(property, class1);
 var items = provider.GetItems();

 var current = items.First(c => c.Selected);