一个基于标准的ASP.NET MVC2.0 + LINQ 的一个项目案例

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web.Mvc;

using MvcApplication4.Models;
namespace MvcApplication4.Controllers
{
public class ProductController : Controller
{
//
// GET: /Product/

DB1DataContext db1 = new DB1DataContext();

public ActionResult Index()
{

System.Linq.IQueryable<Product> products = db1.Product;
ViewData["products"] = products;

return View("ShowProduct");
}

public ActionResult Delete(int prodID)
{

var products = from p in db1.Product
where p.ProductID == prodID
select p;
db1.Product.DeleteAllOnSubmit(products);

return Index();
}

public ActionResult PreUpdate(Product prod)
{

ViewData["product"] = prod;

IList<SelectListItem> sliType = new List<SelectListItem>() {
new SelectListItem{ Text="电器", Value="电器"},
new SelectListItem{ Text="饮料", Value="饮料"}
};
SelectList slType = new SelectList(sliType, "Value", "Text", prod.Type);
ViewData["slType"] = slType;

return View("Update");
}

public ActionResult Add()
{

IList<SelectListItem> sliType = new List<SelectListItem>() {
new SelectListItem{ Text="电器", Value="电器"},
new SelectListItem{ Text="饮料", Value="饮料"}
};
SelectList slType = new SelectList(sliType, "Value", "Text","电器");
ViewData["slType"] = slType;
return View("Update");
}

public ActionResult Save()
{

if(!string.IsNullOrEmpty(Request.Form["hdProductID"]))
{
//更新一条数据
int productID=Convert.ToInt32(Request.Form["hdProductID"]);
Product product=db1.Product.Single(p=>p.ProductID==productID);
product.ProductName = Request.Form["txtProductName"];
product.UnitPrice = Convert.ToDecimal(Request.Form["txtUnitPrice"]);
product.Type = Request.Form["ddlType"];
db1.SubmitChanges();
}
else
{
//曾加一条数据
Product product = new Product();
product.ProductName = Request.Form["txtProductName"];
product.UnitPrice = Convert.ToDecimal(Request.Form["txtUnitPrice"]);
product.Type = Request.Form["ddlType"];
db1.Product.InsertOnSubmit(product);
db1.SubmitChanges();
}

return Index();
}
}
}

作者：ylbtech 出处：http://ylbtech.cnblogs.com/ 本文版权归作者和博客园共有，欢迎转载，但未经作者同意必须保留此段声明，且在文章页面明显位置给出原文连接，否则保留追究法律责任的权利。