由于自己也是才学习Web开发,可能写的东西比较简单,有兴趣的可以看,大牛跟大虾可以帮忙指出问题,可能里面专业术语不会太多,毕竟自己也不懂,还请见谅。
1、直接打开VS2010,创建一个新的MVC框架应用程序。
5、创建视图,在相应的控制器处,直接右击,添加视图,各项选择都如下图。这边有个主意的地方就是,我一开始的时候选择强类型视图,怎么选择都是没有Categories,后来通过网上查询,发现是自己没有先编译生成。
2、创建完成后,系统基本会将基础工作都做完了,自动生成文件,目录如下:
3、创建数据模型,在Models文件夹处,右击添加“新建项”,设置实体数据模型名称为“NorthWind.edmx”,按照提示一步一步往下,此处我只用一张表来做例子“Categories”。
4、更改控制器,添加Create、Edit、Detail几个方法。
namespace MvcApplication1.Controllers
{
[HandleError]
public class HomeController : Controller
{
NorthwindEntities northWind = new NorthwindEntities();
public ActionResult Index()
{
var models = northWind.Categories.ToList();
return View(models);
}
[AcceptVerbs(HttpVerbs.Get)]
public ActionResult Edit(int id)
{
var models = northWind.Categories.First(c => c.CategoryID == id);
return View(models);
}
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Edit(int categoryId, FormCollection form)
{
var models = northWind.Categories.First(c => c.CategoryID == categoryId);
UpdateModel(models, new[] { "CategoryName", "Description" });
northWind.SaveChanges();
return RedirectToAction("Index");
}
[AcceptVerbs(HttpVerbs.Get)]
public ActionResult Detail(int id)
{
var models = northWind.Categories.First(c => c.CategoryID == id);
return View(models);
}
[AcceptVerbs(HttpVerbs.Get)]
public ActionResult Create()
{
Categories category = new Categories();
return View(category);
}
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Create(int categoryId, FormCollection form)
{
var models = northWind.Categories.FirstOrDefault(c => c.CategoryID == categoryId);
if (models==null)
{
Categories category = new Categories();
UpdateModel(category, new[] { "CategoryName", "Description" });
northWind.AddToCategories(category);
northWind.SaveChanges();
return RedirectToAction("Index");
}
else
{
return RedirectToAction("Create");
}
}
public ActionResult About()
{
return View();
}
}
}
{
[HandleError]
public class HomeController : Controller
{
NorthwindEntities northWind = new NorthwindEntities();
public ActionResult Index()
{
var models = northWind.Categories.ToList();
return View(models);
}
[AcceptVerbs(HttpVerbs.Get)]
public ActionResult Edit(int id)
{
var models = northWind.Categories.First(c => c.CategoryID == id);
return View(models);
}
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Edit(int categoryId, FormCollection form)
{
var models = northWind.Categories.First(c => c.CategoryID == categoryId);
UpdateModel(models, new[] { "CategoryName", "Description" });
northWind.SaveChanges();
return RedirectToAction("Index");
}
[AcceptVerbs(HttpVerbs.Get)]
public ActionResult Detail(int id)
{
var models = northWind.Categories.First(c => c.CategoryID == id);
return View(models);
}
[AcceptVerbs(HttpVerbs.Get)]
public ActionResult Create()
{
Categories category = new Categories();
return View(category);
}
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Create(int categoryId, FormCollection form)
{
var models = northWind.Categories.FirstOrDefault(c => c.CategoryID == categoryId);
if (models==null)
{
Categories category = new Categories();
UpdateModel(category, new[] { "CategoryName", "Description" });
northWind.AddToCategories(category);
northWind.SaveChanges();
return RedirectToAction("Index");
}
else
{
return RedirectToAction("Create");
}
}
public ActionResult About()
{
return View();
}
}
}
6、在视图中,自己也尝试着进行简单的修改,当然不是CSS跟JS这些啦,毕竟还没到那层次。主要还是关键字的显示跟隐藏。
@Html.HiddenFor(model => model.CategoryID)
7、测试了ValidationMessageFor与ValidationMessage。
@Html.ValidationMessageFor(model => model.Description)
@Html.ValidationMessage("CategoryName","*")
这两个的效果大家可以自己测试下。
8、最终效果。
9、遗留问题:
最后还有2个问题在学习的时候未解决。a、路由:系统自动创建是MapRoute,add的方法我没试过;b、就是在编辑的时候如果我内容出现<>这种字符,就会报错。如果<>连写就是会被自动解析成"<>",如果是<字段值>,就会报错"
从客户端(Description="<Test>")中检测到有潜在危险的 Request.Form 值。
"。