Mvc
1.Html 增加扩展方法
1 using System.Web.Mvc;
2
3 namespace KnockoutBootstrapMvc.Entensions
4 {
5 public static class HtmlHelperExtensions
6 {
7 public static HtmlString HtmlConvertToJson(this HtmlHelper htmlHelper, object model)
8 {
9 var setting = new JsonSerializerSettings
10 {
11 ReferenceLoopHandling = ReferenceLoopHandling.Ignore,
12 Formatting = Formatting.Indented
13 };
14 return new HtmlString(JsonConvert.SerializeObject(model, setting));
15 }
16 }
17 }
2.Code First
创建Entity实体，当有外键关联时，可以在类内部创建virtual ObjClass 如果是数组为ICollection<ObjectClass>
1 public class Author
2 {
3 public int Id { get; set; }
4 public string FirstName { get; set; }
5 public string LastName { get; set; }
6 public string Biography { get; set; }
7 public virtual ICollection<Book> Books { get; set; }
8 }
9
10 public class Book
11 {
12 public int Id { get; set; }
13 public string Title { get; set; }
14 public string Isbn { get; set; }
15 public string Synopsis { get; set; }
16 public string Description { get; set; }
17 public string ImageUrl { get; set; }
18 public virtual Author Author { get; set; }
19
20 }
3.Db类库\重写OnModelCreating方法
创建Db类继承DbContext,
创建无参构造函数，设置父类连接字符串的名称
创建实体对象 Public DbSet<EntityName> PropertyName {get;set;}
重写OnModelCreating方法，此方法内在实体类创建时触发，可以设置实体的创建格式 如：开启、关闭默认的Id列为主键，是否自增标识列等。
1 public class BookContext:DbContext
2 {
3 public BookContext()
4 :base("BookContext")
5 {
6
7 }
8
9 public DbSet<Book> Books { get; set; }
10 public DbSet<Author> Authors { get; set; }
11
12 protected override void OnModelCreating(DbModelBuilder modelBuilder)
13 {
14 modelBuilder.Conventions.Remove<PluralizingTableNameConvention>();
15 base.OnModelCreating(modelBuilder);
16 }
17
18 }
4.创建数据库启动程序类库，集成DropCreateDataBaseIfModelChanges<T> 、重写Seed方法用来初始化表格信息、向数据库表格中插入数据。
未直接save的表，在save关联表时，数据也会插入进去
1 public class BookInitializer : DropCreateDatabaseIfModelChanges<BookContext>
2 {
3 protected override void Seed(BookContext context)
4 {
5 var author = new Author()
6 {
7 Biography = "..",
8 FirstName = "zang",
9 LastName = "san"
10 };
11 var books = new List<Book>()
12 {
13 new Book()
14 {
15 Author=author,
16 Description="...",
17 ImageUrl="http://ecx.images-amazon.com",
18 Isbn="14919143",
19 Title="Knokout.js",
20 Synopsis="..."
21
22 },
23 new Book()
24 {
25 Author=author,
26 Description="...",
27 ImageUrl="http://ecx.images-amazon.com",
28 Isbn="14919142",
29 Title="bootstrap.css",
30 Synopsis="..."
31 }
32 ,
33 new Book()
34 {
35 Author=author,
36 Description="...",
37 ImageUrl="http://ecx.images-amazon.com",
38 Isbn="14919146",
39 Title="asp.net mvc",
40 Synopsis="..."
41 }
42 };
43
44 author = new Author()
45 {
46 Biography = "..",
47 FirstName = "li",
48 LastName = "si"
49 };
50 books.Add(new Book()
51 {
52 Author = author,
53 Description = "...",
54 ImageUrl = "http://ecx.images-amazon.com",
55 Isbn = "14919146",
56 Title = "lisi asp.net mvc",
57 Synopsis = "..."
58 });
59
60 books.ForEach(b => context.Books.Add(b));
61 context.SaveChanges();
62 //base.Seed(context);
63
64 //new BookInitializer();
65 }
66
67 }
在应用启动方法中设置数据库对象，
1.Global.asax中创建Db对象
2.DataBase.SetInitialzer(new Objclass);
3.Db对象.DataBase.Initialize(true);
1 1 namespace KnockoutBootstrapMvc
2 2 {
3 3 public class MvcApplication : System.Web.HttpApplication
4 4 {
5 5 protected void Application_Start()
6 6 {
7 7 AreaRegistration.RegisterAllAreas();
8 8 FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
9 9 RouteConfig.RegisterRoutes(RouteTable.Routes);
10 10 BundleConfig.RegisterBundles(BundleTable.Bundles);
11 11
12 12 var bookContext = new BookContext();
13 13 Database.SetInitializer(new BookInitializer());
14 14 bookContext.Database.Initialize(true);
15 15
16 16 }
17 17 }
18 18 }
5.Controller 方法属性前可以使用HttpPost等定义访问请求格式及是否启用验证
1 // POST: Authors/Create
2 // 为了防止“过多发布”攻击，请启用要绑定到的特定属性，有关
3 // 详细信息，请参阅 http://go.microsoft.com/fwlink/?LinkId=317598。
4 [HttpPost]
5 [ValidateAntiForgeryToken]
6 public ActionResult Create([Bind(Include = "Id,FirstName,LastName,Biography")] Author author)
7 {
8 if (ModelState.IsValid)
9 {
10 db.Authors.Add(author);
11 db.SaveChanges();
12 return RedirectToAction("Index");
13 }
14
15 return View(author);
16 }
[email protected] 定义标签，在Layout页面里可以使用 @RenderSection(name:required:) 来加载对应的标签
PageA.cshtml
@section scripts
{
<script type="text/javascript">
function ViewModel(authors)
{
var self = this;
self.authors = authors;
}
var viewModel = new ViewModel(@Html.HtmlConvertToJson(Model));
ko.applyBindings(viewModel);
</script>
}
Layout.cshtml
@Scripts.Render("~/bundles/jquery")
@Scripts.Render("~/bundles/bootstrap")
<script type="text/javascript" src="~/Scripts/knockout-3.4.0.js"></script>
@RenderSection( name:"scripts", required: false)
时间： 2024-10-06 00:50:37