我如何可以顯示導航屬性的值在asp.net mvc的

Question

CategoryName

指數方法：

public ActionResult Index(int? page) 
{ 
    var data = objContext.Products.ToList().ToPagedList(page ?? 1, 1); 
    return View(data); 
} 

View

Answer 1

如果您product POCO，你有Category導航屬性Product，簡單使用：

@Html.DisplayNameFor(modelItem => model.Category.Title) 

假設你的產品和類別如下：

public class Product { 
    public int ID { get; set; } 
    public string ProductName { get; set; } 
    public int CategoryId { get; set; } 

    // and other properties 

    public virtual ProductCategory ProductCategory { get; set; } 
} 

public class ProductCategory { 
    public int ID { get; set; } 
    public string CategoryName { get; set; } 
    public virtual ICollection<Product> Products { get; set; } 
} 

，並在地圖中定義product您有：

internal class ProductMap : EntityTypeConfiguration<Product> { 
    public ProductMap() { 
     // Primary Key 
     this.HasKey(t => t.ID); 

     // Properties, for example 
     this.Property(t => t.ProductName) 
      .HasMaxLength(200); 
     // Table Mappings 
     this.ToTable("Product"); 

     //Relationships 
     this.HasRequired(t => t.ProductCategory) 
      .WithMany(t => t.Products) 
      .HasForeignKey(d => d.CategoryId); 

    } 
}