我在MVC 5中遇到编辑和详细信息的问题我在我的应用程序中使用ViewModel这是我的ViewModel代码：
public class HeadsViewModel
{
public int h_id { get; set; }
public string h_no { get; set; }
public string titles { get; set; }
public string h_initials { get; set; }
public string fname { get; set; }
public string lname { get; set; }
public string email { get; set; }
public string cell { get; set; }
public string tel_h { get; set; }
public int title_id { get; set; }
public string flatName { get; set; }
public string flatNo { get; set; }
public string strname { get; set; }
public string strNo { get; set; }
public string suburb { get; set; }
public string city { get; set; }
public string tel_w { get; set; }
public string fax { get; set; }
public string cell2 { get; set; }
public bool active { get; set; }
public string province { get; set; }
public string country { get; set; }
public int postalcode { get; set; }
public string zone { get; set; }
public bool isHa { get; set; }
public int addtype { get; set; }
}
控制器：
[HttpGet]
public ActionResult Edit(int? id)
{
var member = (from h in db.Members
join j in db.Contacts on h.m_id equals j.m_id
join x in db.Addresses1 on h.phys_addid equals x.PhysAddID
join f in db.Titles on h.title_id equals f.title_id
where h.m_id == id
select new
{
title_id = h.title_id,
memType_id=h.Memtype_Id,
marital_id = h.maritialid,
m_id = h.m_id,
initials = h.initial,
fname = h.fname,
lname = h.lname,
dob = h.dob,
active= h.Active,
religion = h.religion,
occupation = h.occupation,
company = h.company,
note = h.Note,
employed = h.employed,
reg = h.reg_date,
accnumb = h.AccNumb,
agegroup = h.AgeGrp,
email = j.Email,
cell = j.cell,
cell2 = j.cell2,
tel_w = j.tel_w,
tel_h = j.tel_h,
fax = j.fax,
flatno = x.flatNo,
flatname = x.flatName,
strname = x.strname,
strno = x.strNo,
suburb = x.Suburb,
city = x.City,
province = x.Province,
country = x.Country,
zone = x.zone,
postalCode = x.PostalCode,
}).First();
var viewmodel = new MembersViewModel();
viewmodel.title_id = member.title_id;
viewmodel.maritialid = (int)member.marital_id;
viewmodel.m_id = member.m_id;
viewmodel.Memtype_Id = (int)member.memType_id;
viewmodel.initial = member.initials;
viewmodel.fname = member.fname;
viewmodel.lname = member.lname;
viewmodel.dob = member.dob;
viewmodel.active = (bool)member.active;
viewmodel.religion = member.religion;
viewmodel.occupation = member.occupation;
viewmodel.company = member.company;
viewmodel.note = member.note;
viewmodel.regdate = member.reg;
viewmodel.accNumb = member.accnumb;
viewmodel.agegroup = member.agegroup;
viewmodel.email = member.email;
viewmodel.cell = member.cell;
viewmodel.cell2 = member.cell2;
viewmodel.tel_h = member.tel_h;
viewmodel.tel_w = member.tel_w;
viewmodel.fax = member.fax;
viewmodel.flatName = member.flatname;
viewmodel.flatNo = member.flatno;
viewmodel.strname = member.strname;
viewmodel.strNo = member.strno;
viewmodel.suburb = member.suburb;
viewmodel.city = member.city;
viewmodel.province = member.province;
viewmodel.country = member.country;
try
{
viewmodel.postalcode = (int)member.postalCode;
}
catch (Exception) { }
ViewBag.MaritialType = new SelectList(db.Maritials, "Maritialid", "MaritialType", viewmodel.maritialid);
ViewBag.Type = new SelectList(db.MemberTypes.ToList(), "Memtype_Id", "Type", viewmodel.Memtype_Id);
ViewBag.Titles = new SelectList(db.Titles.ToList(), "title_id", "Titles", viewmodel.title_id);
return View(viewmodel);
}
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Edit(MembersViewModel vm)
{
if (ModelState.IsValid)
{
var member = db.Members.Find(vm.m_id);
var add = db.Addresses1.Find(vm.PhysAddID);
var con = db.Contacts.Find(vm.m_id);
member.title_id = vm.title_id;
member.maritialid = (int)vm.maritialid;
member.m_id = vm.m_id;
member.Memtype_Id = (int)vm.Memtype_Id;
member.initial = vm.initial;
member.fname = vm.fname;
member.lname = vm.lname;
member.dob = vm.dob;
member.Active = (bool)vm.active;
member.religion = vm.religion;
member.occupation = vm.occupation;
member.company = vm.company;
member.Note = vm.note;
member.reg_date = vm.regdate;
member.AccNumb = vm.accNumb;
member.AgeGrp = vm.agegroup;
con.Email = vm.email;
con.cell = vm.cell;
con.cell2 = vm.cell2;
con.tel_h = vm.tel_h;
con.tel_h = vm.tel_w;
con.fax = vm.fax;
add.flatName = vm.flatName;
add.flatNo = vm.flatNo;
add.strname = vm.strname;
add.strNo = vm.strNo;
add.Suburb = vm.suburb;
add.City = vm.city;
add.Province = vm.province;
add.Country = vm.country;
try
{
add.PostalCode = (int)vm.postalcode;
}
catch (Exception) { }
ViewBag.MaritialType = new SelectList(db.Maritials, "Maritialid", "MaritialType", vm.maritialid);
ViewBag.Type = new SelectList(db.MemberTypes.ToList(), "Memtype_Id", "Type", vm.Memtype_Id);
ViewBag.Titles = new SelectList(db.Titles.ToList(), "title_id", "Titles", vm.title_id);
db.Entry(member).State = EntityState.Modified;
db.Entry(add).State = EntityState.Modified;
db.Entry(con).State = EntityState.Modified;
db.SaveChanges();
return RedirectToAction("Index");
}
return View(vm);
}
查看：
@model parishV3.Model.HeadViewModel
我的问题是我想在我的编辑代码上使用视图模型，并详细说明代码而不是表格。请帮助我解决代码问题。
现在获取编辑代码正常工作，但问题是发布编辑代码不起作用，请你帮忙。
答案 0 :(得分：1)
可以帮忙，试试下面的内容。
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Edit(Head head)
{
if (ModelState.IsValid)
{
db.Entry(head).State = EntityState.Modified;
db.SaveChanges();
return RedirectToAction("Index");
}
//Use automapper to map the objects or assign the data as below
HeadViewModel headViewModel = new HeadViewModel {
// Assign the property value from the table object
};
ViewBag.title_id = new SelectList(db.Titles, "title_id", "Titles", head.title_id);
return View(headViewModel);
}
[HttpGet]
public ActionResult Details(int? id)
{
if (id == null)
{
return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
}
Head head = db.Heads.Find(id);
if (head == null)
{
return HttpNotFound();
}
//Use automapper to map the objects or assign the data as below
HeadViewModel headViewModel = new HeadViewModel {
// Assign the property value from the table object
};
return View(headViewModel);
}
要使用三个不同的表，您必须修改viewModel，如
public class HeadViewModel
{
public Table1 Table1 { get; set; }
public Table2 Table2 { get; set; }
public Table3 Table3 { get; set; }
}
public class Table1
{
public int column1 { get; set; }
public string column2 { get; set; }
}
public class Table2
{
public int column1 { get; set; }
public string column2 { get; set; }
}
public class Table3
{
public int column1 { get; set; }
public string column2 { get; set; }
}
在控制器中绑定数据时，请执行以下操作，
HeadViewModel headViewModel = new HeadViewModel
{
Table1 = new Table1
{
column1 = 0, // you data from the DB table object
column2 = ""// you data from the DB table object
},
Table2 = new Table2
{
column1 = 0, // you data from the DB table object
column2 = ""// you data from the DB table object
},
Table3 = new Table3
{
column1 = 0, // you data from the DB table object
column2 = ""// you data from the DB table object
}
};
return View(headViewModel);
更新
看来你在post方法上返回3个视图模型当然不可能，而你必须使用绑定到视图的视图模型。
与视图绑定的视图模型＆＃39;编辑＆＃39;是＆＃39; MembersViewModel＆＃39;所以你的Post动作方法应该是这样的，
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Edit(MembersViewModel members)
{
// From here you may want to again map the data from MembersViewModel to the table objects and do the rest of operation as you have done below
// 1. Get the data table objects
// 2. Assign the data from the MembersViewModel to the respective data tables which is similarly done in [HttpGet] method.
// 3. Then save the changes as below.
db.Entry(member).State = EntityState.Modified;
db.Entry(add).State = EntityState.Modified;
db.Entry(con).State = EntityState.Modified;
db.SaveChanges();
}
10月20日更新 而不是写作，
db.Entry(member).State = EntityState.Modified;
尝试以下，
db.EntityClass.Attach(member);
db.ObjectStateManager.ChangeObjectState(member, EntityState.Modified);
此处EntityClass是为成员自动生成的类。并且对其他表也一样。