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这是我的控制器类。'WareHouse'上的'ModifiedOn'属性不能设置为'DateTime'值。您必须将此属性设置为'String'类型的非空值。
namespace CalcoWOMS.Controllers
{
public class AdminController : Controller
{
private WOMSEntities db = new WOMSEntities();
public ViewResult WareHouseIndex()
{
return View(db.WareHouse.ToList());
}
public ViewResult WareHouseDetails(int id)
{
WareHouse wareHouse = db.WareHouse.Single(m => m.ID == id);
return View(wareHouse);
}
public ActionResult WareHouseCreate()
{
return View();
}
[HttpPost]
public ActionResult Create(WareHouse wareHouse)
{
if (ModelState.IsValid)
{
db.WareHouse.AddObject(wareHouse);
db.SaveChanges();
return RedirectToAction("WareHouseIndex");
}
return View(wareHouse);
}
//
// GET: /Admin/Edit/5
public ActionResult WareHouseEdit(int id)
{
WareHouse wareHouse = db.WareHouse.Single(m => m.ID == id);
return View(wareHouse);
}
[HttpPost]
public ActionResult WareHouseEdit(WareHouse wareHouse)
{
if (ModelState.IsValid)
{
db.WareHouse.Attach(wareHouse);
db.ObjectStateManager.ChangeObjectState(wareHouse, EntityState.Modified);
db.SaveChanges();
return RedirectToAction("WareHouseIndex");
}
return View(wareHouse);
}
//
// GET: /Admin/Delete/5
public ActionResult WareHouseDelete(int id)
{
WareHouse wareHouse = db.WareHouse.Single(m => m.ID == id);
return View(wareHouse);
}
[HttpPost, ActionName("WareHouseDelete")]
public ActionResult WareHouseDeleteConfirmed(int id)
{
WareHouse wareHouse = db.WareHouse.Single(m => m.ID == id);
db.WareHouse.DeleteObject(wareHouse);
db.SaveChanges();
return RedirectToAction("WareHouseIndex");
}
}
}
,这是我的表设计..
每当我要运行“管理/ WareHouseIndex”行动有发生一个问题是 “上“的‘ModifiedOn’属性WareHouse'无法设置为'DateTime'值,您必须将此属性设置为'String'类型的非空值。
即使我在modifiedOn字段中没有空条目。请检查并告诉我我做了什么错误。
什么类型的异常这是什么?您的WareHouse.ModifiedOn属性的类型是什么?它是如何归因的?它如何映射到数据库? – 2011-06-14 09:04:20
您可以显示WareHouse类的代码,特别是构造函数吗?我假设你正在使用实体框架? – 37Stars 2011-06-30 04:34:41