快速建立Repository Pattern的影片教學
詳見以下影片與GIT資源直接簡單建立檔案
1.完成新增ADO.NET的操作 如「Entity Framework Code First if DataBase Exist-1」
2.Creat New Class Name： IRepository.cs
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using System;
using System.Collections.Generic;
using System.Linq.Expressions;
namespace Entity_Framework_Repository_Pattern
{
public interface IRepository<TEntity> where TEntity : class
{
TEntity Get(string id);
IEnumerable<TEntity> GetAll();
IEnumerable<TEntity> Find(Expression<Func<TEntity, bool>> predicate);
TEntity SingleOrDefault(Expression<Func<TEntity, bool>> predicate);
void Add(TEntity entity);
void AddRange(IEnumerable<TEntity> entities);
void Remove(TEntity entity);
void RemoveRange(IEnumerable<TEntity> entities);
}
}
3.Creat New Class Name： IMemberRepository.cs
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namespace Entity_Framework_Repository_Pattern
{
public interface IMemberRepository : IRepository<Member>
{
}
}
4.Creat New Class Name： Repository.cs
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using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Linq;
using System.Linq.Expressions;
namespace Entity_Framework_Repository_Pattern
{
public class Repository<TEntity> : IRepository<TEntity> where TEntity : class
{
protected readonly DbContext Context;
public Repository(DbContext context)
{
Context = context;
}
public TEntity Get(string id)
{
return Context.Set<TEntity>().Find(id);
}
public IEnumerable<TEntity> GetAll()
{
return Context.Set<TEntity>().ToList();
}
public IEnumerable<TEntity> Find(Expression<Func<TEntity, bool>> predicate)
{
return Context.Set<TEntity>().Where(predicate);
}
public TEntity SingleOrDefault(Expression<Func<TEntity, bool>> predicate)
{
return Context.Set<TEntity>().SingleOrDefault(predicate);
}
public void Add(TEntity entity)
{
Context.Set<TEntity>().Add(entity);
}
public void AddRange(IEnumerable<TEntity> entities)
{
Context.Set<TEntity>().AddRange(entities);
}
public void Remove(TEntity entity)
{
Context.Set<TEntity>().Remove(entity);
}
public void RemoveRange(IEnumerable<TEntity> entities)
{
Context.Set<TEntity>().RemoveRange(entities);
}
}
}
5.Creat New Class Name : MemberRepository.cs
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namespace Entity_Framework_Repository_Pattern
{
public class MemberRepository : Repository<Member>, IMemberRepository
{
public MemberRepository(Model1 context) : base(context)
{
}
public Model1 Model1
{
get { return Context as Model1; }
}
}
}
6.Creat New Class Name : IUnitOfWork.cs
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using System;
namespace Entity_Framework_Repository_Pattern
{
public interface IUnitOfWork : IDisposable
{
IMemberRepository Member { get; }
int Complete();
}
}
7.Creat New Class Name : UnitOfWork.cs
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using System.Collections.Generic;
using System.Linq;
namespace Entity_Framework_Repository_Pattern
{
public class UnitOfWork : IUnitOfWork
{
private readonly Model1 _context;
public IMemberRepository Member { get; private set; }
public UnitOfWork(Model1 context)
{
_context = context;
Member = new MemberRepository(_context);
}
public int Complete()
{
return _context.SaveChanges();
}
public void Dispose()
{
_context.Dispose();
}
}
}
8.檔案結構化(可省略) 
9.Read MSSQL
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Entity_Framework_Repository_Pattern
{
internal class Program
{
static void Main(string[] args)
{
using (var unitOfWork = new UnitOfWork(new Model1()))
{
var result = unitOfWork.Member.GetAll();
foreach (var item in result)
{
Console.WriteLine($"{item.UserID} {item.UserName} {item.UserEmail}");
}
}
Console.ReadKey();
}
}
}