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2016-07-19 00:00 501 查看

Tools.cs

using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
public class Tools
{

public List<TEntity> Page<TEntity>(IQueryable<TEntity> source,int PageNum,int PageIndex) where TEntity :class
{
List<TEntity> list = new List<TEntity>();
int count = PageNum * (PageIndex - 1);
using (db)
{

list=source.Skip<TEntity>(count).Take<TEntity>(PageNum).ToList<TEntity>();

}
return list;
}

}

}
Program.cs

using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
//Console.Write("yang");
using (var db = new MyContext())
{

Tools t = new Tools();
IQueryable<Student> source = db.Students.OrderBy(s => s.Id);
List<Student> list = t.Page<Student>(source, 2, 2);

foreach (var s in list)
{
Console.Write(s.Id);
Console.Write("\t");
Console.Write(s.StudentName);
Console.Write("\n");
}

}
}
}
}

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