AwesomeMvc 让你不写一行js实现下拉列表联动
介绍：
AwesomeMvc是个开源项目，地址：http://awesome.codeplex.com/
AwesomeMvc包含了一套丰富的辅助控件，你可以用它来建立高度敏感和交互性的基于Ajax的Web应用程序。这些控件包括：Autocomplete, AjaxDropdown, Lookup, MultiLookup, AjaxForm, AjaxRadioList, AjaxCheckBoxList, DatePicker, Confirm Dialog, Popup Form 和 Pager。
今天我给大家演示几个简单的示例帮大家了解下这个组件：
本例只是演示了AwesomeMvc功能的冰山一角
本例源码：files.cnblogs.com/zhangzhi19861216/AwesomeMvcStudy.rar
最好下载源码对照阅读，因为我表达的太烂了，看源码明了。
1、Vs2010新建一个asp.net mvc项目，并添加Omu.AwesomeMvc.dll（即AwesomeMvc）。
注：本示例为了演示添加了一个 Omu.ValueInjecter.dll组件，大家暂时可不必关系它是做什么的，如果你对 这个组件感兴趣，可以看看我之前的博客：http://www.cnblogs.com/zhangzhi19861216/archive/2013/04/02/2995191.html
Omu.AwesomeMvc.dll 和Omu.ValueInjecter.dll我放在当前项目的DLL文件夹了，大家可下载我的示例项目获取。
2、添加AwesomeMvc.js到Scripts文件夹。如下图：
并在Site.Master中添加AwesomeMvc.js：
Web.config中添加命名空间，如下图：
接下来我在Models文件夹下新建一个类Db.cs模拟一个数据源:
using System; using System.Collections.Generic; using System.Linq; using Omu.ValueInjecter;
namespace AwesomeMvcStudy.Models { public static class Db { public static IList<Country> Countries = new List<Country>(); public static IList<Chef> Chefs = new List<Chef>(); public static IList<Meal> Meals = new List<Meal>(); public static IList<Category> Categories = new List<Category>(); public static IList<Dinner> Dinners = new List<Dinner>(); public static IList<Lunch> Lunches = new List<Lunch>(); public static IList<Purchase> Purchases = new List<Purchase>(); public static IList<Message> Messages = new List<Message>();
public static int Gid = 151;
public static object Set<T>() { if (typeof(T) == typeof(Country)) return Countries; if (typeof(T) == typeof(Chef)) return Chefs; if (typeof(T) == typeof(Meal)) return Meals; if (typeof(T) == typeof(Dinner)) return Dinners; if (typeof(T) == typeof(Category)) return Categories; if (typeof(T) == typeof(Lunch)) return Lunches; if (typeof(T) == typeof(Purchase)) return Purchases; if (typeof(T) == typeof(Message)) return Messages; return null; }
public static IDictionary<Type, IList<object>> Tables = new Dictionary<Type, IList<object>> { { typeof(Country), Countries.Cast<object>().ToList() }, { typeof(Chef), Chefs.Cast<object>().ToList() }, { typeof(Meal), Meals.Cast<object>().ToList() }, { typeof(Dinner), Dinners.Cast<object>().ToList() }, { typeof(Category), Categories.Cast<object>().ToList() }, { typeof(Lunch), Lunches.Cast<object>().ToList() }, { typeof(Purchase), Purchases.Cast<object>().ToList() }, { typeof(Message), Messages.Cast<object>().ToList() }, };
public static T Insert<T>(T o) where T : Entity { o.Id = Gid += 2; ((IList<T>)Set<T>()).Add(o); return o; }
public static T Get<T>(int? id) where T : Entity { var entity = ((IList<T>)Set<T>()).SingleOrDefault(o => o.Id == id); if (entity == null) throw new AwesomeDemoException("this item doesn''t exist anymore"); return entity; }
public static void Update<T>(T o) where T : Entity { var t = Get<T>(o.Id); t.InjectFrom(o); }
public static void Delete<T>(int id) where T : Entity { ((IList<T>)Set<T>()).Remove(Get<T>(id)); }
static Db() { Insert(new Category { Name = "Fruits" }); Insert(new Category { Name = "Legumes" }); Insert(new Category { Name = "Vegetables" }); Insert(new Category { Name = "Nuts" }); Insert(new Category { Name = "Grains" });
Insert(new Meal { Name = "Mango", Category = Categories[0], Description = "The mango is a fleshy stone fruit belonging to the genus Mangifera" }); Insert(new Meal { Name = "Apple", Category = Categories[0], Description = "The apple is the pomaceous fruit of the apple tree" }); Insert(new Meal { Name = "Papaya", Category = Categories[0], Description = "The papaya is a large tree-like plant, with a single stem growing from 5 to 10 metres" }); Insert(new Meal { Name = "Banana", Category = Categories[0], Description = "Bananas come in a variety of sizes and colors when ripe, including yellow, purple, and red." }); Insert(new Meal { Name = "Cherry", Category = Categories[0], Description = "The cherry is the fruit of many plants of the genus Prunus, and is a fleshy stone fruit" });
Insert(new Meal { Name = "Tomato", Category = Categories[1], Description = "The tomato fruit is consumed in diverse ways, including raw, as an ingredient in many dishes and sauces" }); Insert(new Meal { Name = "Potato", Category = Categories[1], Description = "A potato is a starchy edible tuber native to South America and cultivated all over the world" }); Insert(new Meal { Name = "Cucumber", Category = Categories[1], Description = "Like the tomato, the cucumber is a fruit. Botanically speaking, a fruit is the mature ovary of a flowering plant" }); Insert(new Meal { Name = "Onion", Category = Categories[1], Description = " It is possible to chop the greens into small pieces for salads and as a garnish" }); Insert(new Meal { Name = "Carrot", Category = Categories[1], Description = "The rich orange color of carrots comes from beta carotene, which also happens to be very good for optical health" });
Insert(new Meal { Name = "Celery", Category = Categories[2], Description = "Although originally cultivated for its perceived medicinal qualities, celery has since made the jump into the daily diets" }); Insert(new Meal { Name = "Broccoli", Category = Categories[2], Description = "Sometimes broccoli is compared to tiny trees" }); Insert(new Meal { Name = "Artichoke", Category = Categories[2], Description = "The globe artichoke enjoys a long history of both lore and cooking preparation" }); Insert(new Meal { Name = "Cauliflower", Category = Categories[2], Description = "As a general rule, the head is white, but variants of cauliflower come in purple and green as well" }); Insert(new Meal { Name = "Lettuce", Category = Categories[2], Description = "Leaf lettuce is often very lightweight and ruffly, with a wrinkly surface and a soft, almost velvety texture" });
Insert(new Meal { Name = "Hazelnuts", Category = Categories[3], Description = "Hazelnuts are produced by hazel trees" }); Insert(new Meal { Name = "Chestnuts", Category = Categories[3], Description = "They have creamy white sweet flesh which appears in a number of cuisines" }); Insert(new Meal { Name = "Walnut", Category = Categories[3], Description = "A walnut is a seed from a tree in the genus Juglans" }); Insert(new Meal { Name = "Almonds", Category = Categories[3], Description = "Almonds come in two varieties, sweet and bitter" }); Insert(new Meal { Name = "Mongongo", Category = Categories[3], Description = "In addition to producing a highly useful lightweight, durable wood, the mongongo tree also yields a distinctive fruit" });
Insert(new Meal { Name = "Rice", Category = Categories[4], Description = "Rice is a keystone of the grass family that produces a vast number of grains " }); Insert(new Meal { Name = "Wheat", Category = Categories[4], Description = "Wheat is a type of grass grown all over the world for its highly nutritious and useful grain." }); Insert(new Meal { Name = "Oats", Category = Categories[4], Description = "They have been in cultivation for over 4,000 years" }); Insert(new Meal { Name = "Fonio", Category = Categories[4], Description = "one of the world''s fastest growing cereals, reaching maturity in as little as six to eight weeks" }); Insert(new Meal { Name = "Barley", Category = Categories[4], Description = " a source of fermentable material for beer and certain distilled beverages, and as a component of various health foods" });
var countries = new[] { "Elwynn Forest","Stormwind", "Loch Modan", "Redridge Mountains", "Westfall", "Ironforge", "Orgrimmar","Feralas", "Darnassus", "Teldrassil", "Winterspring", "Goldshire", "Sylvanaar", "StoneCutter", "Farringdon", "Regent", "Hatton Garden" };
foreach (var country in countries) { Insert(new Country { Name = country }); }
Insert(new Chef { FirstName = "Naked", LastName = "Chef", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Chef", LastName = "Chef", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Athene", LastName = "Broccoli", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Omu", LastName = "Man", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Pepper", LastName = "Tomato", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Deezze", LastName = "Leysen", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Jeea", LastName = "Derveaux", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Phoebe", LastName = "Phoebes", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Sequeiro", LastName = "Olano", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Hercules", LastName = "Oat", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Hermes", LastName = "Graps", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Posh", LastName = "Sicy", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Hestia", LastName = "Cook", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Demeter", LastName = "Harvest", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Hyperion", LastName = "Light", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Gaia", LastName = "Earth", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Chronos", LastName = "Timpus", Country = Rnd(Countries) });
var dinners = new[] {"dinner with friends","eating at the pub","cooking in the garden","ninja dinner", "broccoli power","eating out","Awesome dinner","Uber dinner","Fruity dish","Nice dish","Nerds eating","Pros eating", "hungry men","snacks and movie","fruit salad","Morning meal","Morning Tea","Cookies and milk"};
foreach (var o in dinners) { Insert(new Dinner { Country = Rnd(Countries), Chef = Rnd(Chefs), Meals = RndMeals(), Date = RndDate(), Name = o }); }
var ppl = new[]{ "James","Jeremy","Richard","Penny","Sheldon","Leonard","Zazzles","Amy","Howard","Rajesh","Robert","Phil","Scott","Bernadette", "Russell","Timmy","Jeff","Adam","Jennifer","Audrey","Claudia","Brenda", "Tracy","Allison","Tom","Jerry","Oliver","Justin", "Jamie", "Tania", "Chiren", "Reese", "Dean", "Ian", "Paul", "Gabrielle", "Michelle","Hillary", "Jason","Joshua","Benjamin", "Ryan", "Henry", "Lucas", "Jake", "Luke", "Lewis", "Tyler", "David", "Patrick", "Evan", "Sam", "Sebastian", "Ben", "William", "Harry", "Daniel", "Jacob", "Sophie", "Emily", "Jessica", "Ella", "Mia", "Emma", "Megan", "Caitlin", "Amber", "Evelyn", "Lauren", "Nicole", "Paige", "Eve", "Iris", "Gracie", "Sarah", "Holly", "Elizabeth", "Rachel", "Courtney", "Owen", "Ruby", "Hannah", "Michael", "Gwen", "Morgan", "Carter", "Dolores", "Earl", "Fabiano", "Fernando", "Mario","Luigi", "Vincenzo", "Jonathan", "Nathan", "John", "Mary", "Maria", "Helena","Linda", "Lucy", "Francesco", "Sergio", "Katarina", "Raquel", "Vanessa", "Miguel", "Pedro", "Carlos" }; var foods = new[] {"Banana","Cheesecake","Hot Beverage", "Brisket","Oat meal", "French toast", "Pizza", "Apple Pie", "Salad", "Sushi"}; var locations = new[] { "Home", "University", "Restaurant", "Visit", "Diner" };
IDictionary<string, List<string>> personFood = ppl.ToDictionary(o => o, o => new List<string>()); IDictionary<string, int> personTimes = ppl.ToDictionary(o => o, o => 0);
for (var i = 0; i < 750; i++) { var maxLunches = 750 / ppl.Length; var pplc = 750 / ppl.Length;
var person = Rnd(ppl); if (Lunches.Count(o => o.Person == person) >= pplc) person = Rnd(ppl);
if (personTimes[person] >= maxLunches) { person = Rnd(ppl); } personTimes[person]++;
string food;
if (personFood[person].Count == 3) { food = Rnd(personFood[person]); } else { food = Rnd(foods); personFood[person].Add(food); }
Insert(new Lunch { Date = RndDate(), Food = food, Person = person, Location = Rnd(locations), Price = Rnd(new[] { 10, 20, 30, 50, 70, 23, 45, 100, 21, 79, 39, 18 }), Country = Rnd(Countries), Chef = Rnd(Chefs) }); }
for (var i = 0; i < 70; i++) { Insert(new Purchase { Date = RndDate(), Customer = Rnd(ppl), Product = Rnd(foods), Quantity = Rnd(new[] { 1, 2, 3, 5, 7 }) }); }
for (var i = 0; i < 100; i++) { Insert(new Message { From = Rnd(ppl), Subject = Rnd(foods), DateReceived = RndDate(), Body = RndMessage(new[] { ppl, foods, dinners, new[] { "bla bla bla", "and", "or", "it", "for", "something" } }), IsRead = true }); }
foreach (var message in Messages.OrderByDescending(o => o.DateReceived).Take(5)) { message.IsRead = false; }
}
private static readonly Random R = new Random();
private static string RndMessage(string[][] ph) { var s = "Hi \n "; for (int i = 0; i < R.Next(1000); i++) { s += " " + Rnd(Rnd(ph)); } return s; }
private static T Rnd<T>(ICollection<T> list) { return list.ToArray()[R.Next(0, list.Count)]; }
private static DateTime RndDate() { return new DateTime(R.Next(2009, 2013), R.Next(1, 12), R.Next(1, 28)); }
private static IEnumerable<Meal> RndMeals() { var list = new List<Meal>(); var x = R.Next(1, 5); for (int i = 0; i < x; i++) { list.Add(Meals[R.Next(Meals.Count - 1)]); } return list.Distinct(); } } }
namespace AwesomeMvcStudy.Models { public static class Db { public static IList<Country> Countries = new List<Country>(); public static IList<Chef> Chefs = new List<Chef>(); public static IList<Meal> Meals = new List<Meal>(); public static IList<Category> Categories = new List<Category>(); public static IList<Dinner> Dinners = new List<Dinner>(); public static IList<Lunch> Lunches = new List<Lunch>(); public static IList<Purchase> Purchases = new List<Purchase>(); public static IList<Message> Messages = new List<Message>();
public static int Gid = 151;
public static object Set<T>() { if (typeof(T) == typeof(Country)) return Countries; if (typeof(T) == typeof(Chef)) return Chefs; if (typeof(T) == typeof(Meal)) return Meals; if (typeof(T) == typeof(Dinner)) return Dinners; if (typeof(T) == typeof(Category)) return Categories; if (typeof(T) == typeof(Lunch)) return Lunches; if (typeof(T) == typeof(Purchase)) return Purchases; if (typeof(T) == typeof(Message)) return Messages; return null; }
public static IDictionary<Type, IList<object>> Tables = new Dictionary<Type, IList<object>> { { typeof(Country), Countries.Cast<object>().ToList() }, { typeof(Chef), Chefs.Cast<object>().ToList() }, { typeof(Meal), Meals.Cast<object>().ToList() }, { typeof(Dinner), Dinners.Cast<object>().ToList() }, { typeof(Category), Categories.Cast<object>().ToList() }, { typeof(Lunch), Lunches.Cast<object>().ToList() }, { typeof(Purchase), Purchases.Cast<object>().ToList() }, { typeof(Message), Messages.Cast<object>().ToList() }, };
public static T Insert<T>(T o) where T : Entity { o.Id = Gid += 2; ((IList<T>)Set<T>()).Add(o); return o; }
public static T Get<T>(int? id) where T : Entity { var entity = ((IList<T>)Set<T>()).SingleOrDefault(o => o.Id == id); if (entity == null) throw new AwesomeDemoException("this item doesn''t exist anymore"); return entity; }
public static void Update<T>(T o) where T : Entity { var t = Get<T>(o.Id); t.InjectFrom(o); }
public static void Delete<T>(int id) where T : Entity { ((IList<T>)Set<T>()).Remove(Get<T>(id)); }
static Db() { Insert(new Category { Name = "Fruits" }); Insert(new Category { Name = "Legumes" }); Insert(new Category { Name = "Vegetables" }); Insert(new Category { Name = "Nuts" }); Insert(new Category { Name = "Grains" });
Insert(new Meal { Name = "Mango", Category = Categories[0], Description = "The mango is a fleshy stone fruit belonging to the genus Mangifera" }); Insert(new Meal { Name = "Apple", Category = Categories[0], Description = "The apple is the pomaceous fruit of the apple tree" }); Insert(new Meal { Name = "Papaya", Category = Categories[0], Description = "The papaya is a large tree-like plant, with a single stem growing from 5 to 10 metres" }); Insert(new Meal { Name = "Banana", Category = Categories[0], Description = "Bananas come in a variety of sizes and colors when ripe, including yellow, purple, and red." }); Insert(new Meal { Name = "Cherry", Category = Categories[0], Description = "The cherry is the fruit of many plants of the genus Prunus, and is a fleshy stone fruit" });
Insert(new Meal { Name = "Tomato", Category = Categories[1], Description = "The tomato fruit is consumed in diverse ways, including raw, as an ingredient in many dishes and sauces" }); Insert(new Meal { Name = "Potato", Category = Categories[1], Description = "A potato is a starchy edible tuber native to South America and cultivated all over the world" }); Insert(new Meal { Name = "Cucumber", Category = Categories[1], Description = "Like the tomato, the cucumber is a fruit. Botanically speaking, a fruit is the mature ovary of a flowering plant" }); Insert(new Meal { Name = "Onion", Category = Categories[1], Description = " It is possible to chop the greens into small pieces for salads and as a garnish" }); Insert(new Meal { Name = "Carrot", Category = Categories[1], Description = "The rich orange color of carrots comes from beta carotene, which also happens to be very good for optical health" });
Insert(new Meal { Name = "Celery", Category = Categories[2], Description = "Although originally cultivated for its perceived medicinal qualities, celery has since made the jump into the daily diets" }); Insert(new Meal { Name = "Broccoli", Category = Categories[2], Description = "Sometimes broccoli is compared to tiny trees" }); Insert(new Meal { Name = "Artichoke", Category = Categories[2], Description = "The globe artichoke enjoys a long history of both lore and cooking preparation" }); Insert(new Meal { Name = "Cauliflower", Category = Categories[2], Description = "As a general rule, the head is white, but variants of cauliflower come in purple and green as well" }); Insert(new Meal { Name = "Lettuce", Category = Categories[2], Description = "Leaf lettuce is often very lightweight and ruffly, with a wrinkly surface and a soft, almost velvety texture" });
Insert(new Meal { Name = "Hazelnuts", Category = Categories[3], Description = "Hazelnuts are produced by hazel trees" }); Insert(new Meal { Name = "Chestnuts", Category = Categories[3], Description = "They have creamy white sweet flesh which appears in a number of cuisines" }); Insert(new Meal { Name = "Walnut", Category = Categories[3], Description = "A walnut is a seed from a tree in the genus Juglans" }); Insert(new Meal { Name = "Almonds", Category = Categories[3], Description = "Almonds come in two varieties, sweet and bitter" }); Insert(new Meal { Name = "Mongongo", Category = Categories[3], Description = "In addition to producing a highly useful lightweight, durable wood, the mongongo tree also yields a distinctive fruit" });
Insert(new Meal { Name = "Rice", Category = Categories[4], Description = "Rice is a keystone of the grass family that produces a vast number of grains " }); Insert(new Meal { Name = "Wheat", Category = Categories[4], Description = "Wheat is a type of grass grown all over the world for its highly nutritious and useful grain." }); Insert(new Meal { Name = "Oats", Category = Categories[4], Description = "They have been in cultivation for over 4,000 years" }); Insert(new Meal { Name = "Fonio", Category = Categories[4], Description = "one of the world''s fastest growing cereals, reaching maturity in as little as six to eight weeks" }); Insert(new Meal { Name = "Barley", Category = Categories[4], Description = " a source of fermentable material for beer and certain distilled beverages, and as a component of various health foods" });
var countries = new[] { "Elwynn Forest","Stormwind", "Loch Modan", "Redridge Mountains", "Westfall", "Ironforge", "Orgrimmar","Feralas", "Darnassus", "Teldrassil", "Winterspring", "Goldshire", "Sylvanaar", "StoneCutter", "Farringdon", "Regent", "Hatton Garden" };
foreach (var country in countries) { Insert(new Country { Name = country }); }
Insert(new Chef { FirstName = "Naked", LastName = "Chef", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Chef", LastName = "Chef", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Athene", LastName = "Broccoli", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Omu", LastName = "Man", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Pepper", LastName = "Tomato", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Deezze", LastName = "Leysen", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Jeea", LastName = "Derveaux", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Phoebe", LastName = "Phoebes", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Sequeiro", LastName = "Olano", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Hercules", LastName = "Oat", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Hermes", LastName = "Graps", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Posh", LastName = "Sicy", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Hestia", LastName = "Cook", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Demeter", LastName = "Harvest", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Hyperion", LastName = "Light", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Gaia", LastName = "Earth", Country = Rnd(Countries) }); Insert(new Chef { FirstName = "Chronos", LastName = "Timpus", Country = Rnd(Countries) });
var dinners = new[] {"dinner with friends","eating at the pub","cooking in the garden","ninja dinner", "broccoli power","eating out","Awesome dinner","Uber dinner","Fruity dish","Nice dish","Nerds eating","Pros eating", "hungry men","snacks and movie","fruit salad","Morning meal","Morning Tea","Cookies and milk"};
foreach (var o in dinners) { Insert(new Dinner { Country = Rnd(Countries), Chef = Rnd(Chefs), Meals = RndMeals(), Date = RndDate(), Name = o }); }
var ppl = new[]{ "James","Jeremy","Richard","Penny","Sheldon","Leonard","Zazzles","Amy","Howard","Rajesh","Robert","Phil","Scott","Bernadette", "Russell","Timmy","Jeff","Adam","Jennifer","Audrey","Claudia","Brenda", "Tracy","Allison","Tom","Jerry","Oliver","Justin", "Jamie", "Tania", "Chiren", "Reese", "Dean", "Ian", "Paul", "Gabrielle", "Michelle","Hillary", "Jason","Joshua","Benjamin", "Ryan", "Henry", "Lucas", "Jake", "Luke", "Lewis", "Tyler", "David", "Patrick", "Evan", "Sam", "Sebastian", "Ben", "William", "Harry", "Daniel", "Jacob", "Sophie", "Emily", "Jessica", "Ella", "Mia", "Emma", "Megan", "Caitlin", "Amber", "Evelyn", "Lauren", "Nicole", "Paige", "Eve", "Iris", "Gracie", "Sarah", "Holly", "Elizabeth", "Rachel", "Courtney", "Owen", "Ruby", "Hannah", "Michael", "Gwen", "Morgan", "Carter", "Dolores", "Earl", "Fabiano", "Fernando", "Mario","Luigi", "Vincenzo", "Jonathan", "Nathan", "John", "Mary", "Maria", "Helena","Linda", "Lucy", "Francesco", "Sergio", "Katarina", "Raquel", "Vanessa", "Miguel", "Pedro", "Carlos" }; var foods = new[] {"Banana","Cheesecake","Hot Beverage", "Brisket","Oat meal", "French toast", "Pizza", "Apple Pie", "Salad", "Sushi"}; var locations = new[] { "Home", "University", "Restaurant", "Visit", "Diner" };
IDictionary<string, List<string>> personFood = ppl.ToDictionary(o => o, o => new List<string>()); IDictionary<string, int> personTimes = ppl.ToDictionary(o => o, o => 0);
for (var i = 0; i < 750; i++) { var maxLunches = 750 / ppl.Length; var pplc = 750 / ppl.Length;
var person = Rnd(ppl); if (Lunches.Count(o => o.Person == person) >= pplc) person = Rnd(ppl);
if (personTimes[person] >= maxLunches) { person = Rnd(ppl); } personTimes[person]++;
string food;
if (personFood[person].Count == 3) { food = Rnd(personFood[person]); } else { food = Rnd(foods); personFood[person].Add(food); }
Insert(new Lunch { Date = RndDate(), Food = food, Person = person, Location = Rnd(locations), Price = Rnd(new[] { 10, 20, 30, 50, 70, 23, 45, 100, 21, 79, 39, 18 }), Country = Rnd(Countries), Chef = Rnd(Chefs) }); }
for (var i = 0; i < 70; i++) { Insert(new Purchase { Date = RndDate(), Customer = Rnd(ppl), Product = Rnd(foods), Quantity = Rnd(new[] { 1, 2, 3, 5, 7 }) }); }
for (var i = 0; i < 100; i++) { Insert(new Message { From = Rnd(ppl), Subject = Rnd(foods), DateReceived = RndDate(), Body = RndMessage(new[] { ppl, foods, dinners, new[] { "bla bla bla", "and", "or", "it", "for", "something" } }), IsRead = true }); }
foreach (var message in Messages.OrderByDescending(o => o.DateReceived).Take(5)) { message.IsRead = false; }
}
private static readonly Random R = new Random();
private static string RndMessage(string[][] ph) { var s = "Hi \n "; for (int i = 0; i < R.Next(1000); i++) { s += " " + Rnd(Rnd(ph)); } return s; }
private static T Rnd<T>(ICollection<T> list) { return list.ToArray()[R.Next(0, list.Count)]; }
private static DateTime RndDate() { return new DateTime(R.Next(2009, 2013), R.Next(1, 12), R.Next(1, 28)); }
private static IEnumerable<Meal> RndMeals() { var list = new List<Meal>(); var x = R.Next(1, 5); for (int i = 0; i < x; i++) { list.Add(Meals[R.Next(Meals.Count - 1)]); } return list.Distinct(); } } }
然后在Controllers文件夹下新建一个CategoryAjaxDropdownController.cs类，
代码如下：
using System.Linq; using System.Web.Mvc; using AwesomeMvcStudy.Models; using Omu.AwesomeMvc;
namespace AwesomeMvcDemo.Controllers {
public class CategoryAjaxDropdownController : Controller { public ActionResult GetItems(int? v) {
return Json(Db.Categories.Select(o => new SelectableItem(o.Id, o.Name, v == o.Id)));// value, text, selected } } }
namespace AwesomeMvcDemo.Controllers {
public class CategoryAjaxDropdownController : Controller { public ActionResult GetItems(int? v) {
return Json(Db.Categories.Select(o => new SelectableItem(o.Id, o.Name, v == o.Id)));// value, text, selected } } }
从类名和GetItems方法可以看出我们返回了一个下拉列表。
我们看看Index.aspx 页面如何编码，通过下拉框获取数据：
Index.aspx 部分代码如下：
<%:Html.Awe().AjaxDropdown("ParentCategory") .Url(Url.Action("GetItems","CategoryAjaxDropdown")) %>
这里通过代码可以猜出，提供了一个名叫ParentCategory的下拉框，获取CategoryAjaxDropdownController类的Getitems方法返回的数据。
我们启动网站看看结果：
一个下拉框显示了一组数据，你是不是觉得这其实没什么新意嘛。
接下来我们实现一个联动效果：
我们再添加一个类MealAjaxDropdownController.cs
代码如下：
using System.Linq; using System.Web.Mvc; using AwesomeMvcStudy.Models; using Omu.AwesomeMvc;
namespace AwesomeMvcDemo.Controllers {
public class MealAjaxDropdownController : Controller { public ActionResult GetItems(int? v, int? parent) { return Json(Db.Meals.Where(o => o.Category != null && o.Category.Id == parent) .Select(o => new SelectableItem(o.Id, o.Name, v == o.Id))); } } }
namespace AwesomeMvcDemo.Controllers {
public class MealAjaxDropdownController : Controller { public ActionResult GetItems(int? v, int? parent) { return Json(Db.Meals.Where(o => o.Category != null && o.Category.Id == parent) .Select(o => new SelectableItem(o.Id, o.Name, v == o.Id))); } } }
在index.aspx上添加如下代码：
<%:Html.Awe().AjaxDropdown("ChildMeal") .Parent("ParentCategory") .Url(Url.Action("GetItems","MealAjaxDropdown")) %>
通过代码可以猜出，Parent("ParentCategory")寻找其上级控件的选择值，实现一个联动下拉列表框。
我们看看运行效果：
哇塞，一个联动效果实现了，可是你没写一行js代码。
AwesomeMvc好玩吧？
如果你想把一组数据通过checkboxList或者RadioList显示，你可以这样写：
<%:Html.Awe().AjaxCheckboxList("ChildMeals") //当没有指定url的时候，它寻找 ChildMealsAjaxCheckboxList/GetItems .Parent("ParentCategory")%> <br /> <%:Html.Awe().AjaxRadioList("ChildMealRadioList") .Parent("ParentCategory") .Url(Url.Action("GetItems","MealAjaxDropdown")) %>
好了，今天就介绍到这里，本例只是演示了AwesomeMvc功能的冰山一角，如果想深入的朋友可以到原站点学习。http://awesome.codeplex.com/
本例源码：files.cnblogs.com/zhangzhi19861216/AwesomeMvcStudy.rar
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