如何重用从存储库中保存和删除代码

我想使用存储库模式创建窗口应用程序...以下是我的存储库代码。如何重用从存储库中保存和删除代码

模式是：

using System; 
using System.Collections.Generic; 
using System.ComponentModel.DataAnnotations; 
using System.Linq; 
using System.Text; 

namespace Domain.Models 
{ 
    public class Pet 
    { 
     public int ID { get; set; } 


     [Display(Name="Pet Name")] 
     public String PetName { get; set; } 


     public String Detail { get; set; } 


     [DataType(DataType.Currency)] 
     public Double Price { get; set; } 


     [Display(Name="Pet Code")] 
     public int PetCode { get; set; } 
    } 
}

接口模式：

using Domain.Models; 
    using System; 
    using System.Collections.Generic; 
    using System.Linq; 
    using System.Text; 
    using System.Threading.Tasks; 


     namespace Domain.Abstract 
     { 
      public interface IPetRepository 
      { 
       IEnumerable<Pet> Pets { get; } 
       bool SAvePet(Pet pet); 
       Pet DeletePet(int ID); 

      } 
     }

实施接口

namespace Domain.Concret 
{ 
    public class EFPetRepository:IPetRepository 
    { 
     public readonly DbAccess context = new DbAccess(); 

     public IEnumerable<Models.Pet> Pets 
     { 
      get { return context.Pets ; } 
     } 

     public bool SAvePet(Models.Pet pet) 
     { 
      if (pet.ID == 0) 
      { 
       context.Pets.Add(pet); 
      } 
      else 
      { 
       var pt = context.Pets.Find(pet.ID); 
       if (pt.ID != null) 
       { 
        pt.PetCode = pt.PetCode; 
        pt.PetName = pt.PetName; 
        pt.Price = pt.Price; 
        pt.Detail = pt.Detail; 

       } 
      } 
      try 
      { 
       context.SaveChanges(); 
       return true; 
      } 
      catch (Exception) 
      { 
       return false; 
      } 
     } 

     public Models.Pet DeletePet(int ID) 
     { 
      var pt = context.Pets.Find(ID); 
      if (pt != null) 
      { 
       context.Pets.Remove(pt); 
       context.SaveChanges(); 
      } 
      return pt; 
     } 
    } 
}

现在我想在窗口的形式使用它......凭什么我在这里重复使用它的代码来保存和删除按钮：

namespace inventryMangt 
{ 
    public partial class pet : Office2007Form 
    { 
     private readonly IPetRepository repo; 
     public pet() 
     { 
      repo = new EFPetRepository(); 

      InitializeComponent(); 

     } 







     private void btnadd_Click(object sender, EventArgs e) 
     { 

     repo.SavePet(); 
     } 

     private void btndelete_Click(object sender, EventArgs e) 
     { 
      repo.delete(); 
     } 


    } 
}

来源

2016-12-16 mohammad waqas

最好的方法是使用通用资源库，它允许您在调用方法时启动对象。

public static void Save<T>(T model) where T : class 
{ 
    // your Context code for saving 
} 

// call your method 
Pet pet = new Pet(); 
Save<Pet>(pet)

来源

2016-12-16 12:34:29 Shaahin

通过添加相关命名空间/引用，您可以在任何其他项目中使用接口IPetRepository的实现“EFPetRepository”。它应该像下面这样

private void btnadd_Click(object sender, EventArgs e) 
    { 
     var pet = (Models.Pet)sender;   
     pet.petName= "pet1"; 
     pet.petCode = "p124"; 
     repo.SavePet(pet); 
    } 

    private void btndelete_Click(object sender, EventArgs e) 
    { 
     var pet = (Models.Pet)sender; 
     repo.delete(pet.ID); 
    }

来源

2016-12-16 12:35:49 MoSad

如何重用从存储库中保存和删除代码

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