1. 我们在Model下存放我们系统需要的数据，首先我们创建一个数据库的Linq to Sql Class
2.选中所有的表到设计视图
3. 新建一个BookShopDBDataContext的分布类，我们在这里写一些方法和逻辑层Controller交互.
using
System;
using System.Data;
using System.Configuration;
using System.Linq;
using System.Xml.Linq;
using System.Collections.Generic;
namespace BookShop.Models
{
public partial class BookShopDBDataContext
{
// return all categories
public List < Category > GetAllCategory()
{
return Categories.ToList();
}
// Add Category
public void AddCategory(Category c)
{
this .Categories.InsertOnSubmit(c);
this .SubmitChanges();
}
// Edit Category
public void EditCategory(Category c)
{
this .UpdateCategory(c);
this .SubmitChanges();
}
public Category GetCategory( int id)
{
return Categories.Single(c => c.CategoryId == id);
}
// delete category
public bool DelCategory( int id)
{
// check if has used
if (Books.Any(b => b.BookCategoryId == id))
{
return false ;
}
else
{
Category delCategory = this .Categories.Single(c => c.CategoryId == id);
this .Categories.DeleteOnSubmit(delCategory);
this .SubmitChanges();
return true ;
}
}
}
}
using System.Data;
using System.Configuration;
using System.Linq;
using System.Xml.Linq;
using System.Collections.Generic;
namespace BookShop.Models
{
public partial class BookShopDBDataContext
{
// return all categories
public List < Category > GetAllCategory()
{
return Categories.ToList();
}
// Add Category
public void AddCategory(Category c)
{
this .Categories.InsertOnSubmit(c);
this .SubmitChanges();
}
// Edit Category
public void EditCategory(Category c)
{
this .UpdateCategory(c);
this .SubmitChanges();
}
public Category GetCategory( int id)
{
return Categories.Single(c => c.CategoryId == id);
}
// delete category
public bool DelCategory( int id)
{
// check if has used
if (Books.Any(b => b.BookCategoryId == id))
{
return false ;
}
else
{
Category delCategory = this .Categories.Single(c => c.CategoryId == id);
this .Categories.DeleteOnSubmit(delCategory);
this .SubmitChanges();
return true ;
}
}
}
}
本文转自敏捷的水博客园博客，原文链接
http://www.cnblogs.com/cnblogsfans/archive/2008/03/26/1123035.html如需转载请自行联系原作者
王德水
