I want to use 3 partial views to display my search result(Client name) in 3 different tables. I do not want to show any info from the tables before the search has been completed. As i have understood you can only use one model per view, unless you make some workarounds.
I have tried to make a view model so i can reference the multiple tables from both the index and the partial views. But can't figure it out. Since the methods for the 3 different tables will be the pretty much same i am only going to post the code for the client table. Any help or pointers would be much appreciated
ViewModel:
public class ViewModel
{
public List<Clients> allClients { get; set; }
public List<OrderLines> allOrders { get; set; }
public List<ViewNewOrderSum> allViewNewOrderSum { get; set; }
}
HomeController:
using testForAutofill.Models;
public class HomeController : Controller
{
test_Db_Context db = new test_Db_Context();
// GET: Home
public ActionResult Index()
{
ViewModel vm = new ViewModel();
vm.allClients = GetClients();
return View();
}
private List<Clients> GetClients()
{
List<Clients> clientList = new List<Clients>();
clientList = db.Clients.ToList();
return clientList;
}
[HttpPost]
public ActionResult Index(string searchTerm)
{
Scaleit_Db_Context db = new Scaleit_Db_Context();
List<Clients> orderSums;
if (string.IsNullOrEmpty(searchTerm))//Fix this!
{
orderSums = db.Clients.ToList();
}
else
{
orderSums = db.Clients.Where(x => x.Name.Equals(searchTerm)).ToList();
}
return View(orderSums);
}
IndexView:
#using testForAutofill.Models;
#model testForAutofill.Models.ViewModel
#if (Model.allClients != null && Model.allClients.Count() > 0)
{
#using (Html.BeginForm())
{
<b>Kundenavn:</b>
#Html.TextBox("searchTerm", null, new { id = "txtSearch" })
<input type="submit" value="🔍 Search" class="btn btn-primary" id="btn-search" />
#using (Html.BeginForm())
{
<div class="card-container">
<div class="card border-primary mb-3 card-client" style="max-width: 40rem;">
<div class="card-header">Kunde</div>
<div class="card-body">
<table class="table table-hover">
#foreach (Clients clients in Model.allClients)
{
#Html.Partial("_Client", clients)
}
</table>
</div>
</div>
</div>
}
_Client:
#model testForAutofill.Models.ViewModel
//Tried both DisplayFor and not.
<tr>
<th>Kunde:</th>
<td>#Html.Model.allClients.Name</td>// This is where the error gets
// thrown.
</tr>
<tr>
<th>Org.nr:</th>
<td>#Html.DisplayFor(modelItem => clients.OrgNr)</td>
</tr>
<tr>
<th>Adresse:</th>
<td>#Html.DisplayFor(modelItem => clients.Address1)</td>
#if (clients.Address2 != null)
{
<td>#Html.DisplayFor(modelItem => clients.PostNr)</td>
}
</tr>
The program/webpage doesnt run, and i get the error message:
" CS1061: 'HtmlHelper' does not contain a definition for
'Model' and no extension method 'Model' accepting a first argument of
type 'HtmlHelper' could be found (are you missing a using
directive or an assembly reference?)".
At the commented line in the Partial view.
TRY:
Set object on viewData
inside controller:
ActionResult SomeView(){
ViewData["object"] = theObj;
return View();
}
inside cshtml:
#using objectNamespace
#(((objectType)ViewData["object"]).name)
Related
I am new to MVC and I am trying populate a list of item in the MVC view class, but the model object is null in the .cshtml file during the startup.
#foreach (var element in Model)
Thanks for your help.
My Code:
public class HomeController : Controller
{
List<ModelMath> mathList = new List<ModelMath>();
[HttpPost]
public ActionResult Submit(FormCollection fc)
{
mathList = new List<ModelMath>();
int num = Convert.ToInt32(fc["Num"]);
while(num > 1)
{
ModelMath modelMath = new ModelMath();
modelMath.Number = num;
mathList.Add(modelMath);
num--;
}
return View(mathList);
}
}
Model class:
public class ModelMath
{
public int Number { get; set; }
}
Index.cshtml
#{
ViewBag.Title = "Home Page";
}
<h3><b>HTTPPost Method</b></h3>
#using (Html.BeginForm("Submit", "Index", FormMethod.Post))
{
<table>
<tr>
<td>Enter a Number: </td>
<td>#Html.TextBox("Num")</td>
</tr>
<tr>
<td colspan="2"><input type="submit" value="Submit"></td>
</tr>
</table>
}
<h4 style="color:purple">
<div class="panel-body">
<div class="col-md-12" style="margin-top: 15px;">
<table class="table table-bordered table-responsive table-hover">
<tr>
<th>Input Numbers </th>
</tr>
#foreach (var element in Model)
{
<td>#d.Number</td>
}
</table>
</div>
</div>
</h4>
Could you please let me know what's wrong with my code? Thanks again for your help.
In your Index function, you need to populate the model and pass to the view. Something like
Public ActionResult Index()
{
var myList = new List<example>();
return view(myList)
}
and in your view:
#model List<example>
That is what populates your index view model. It would help if you show us the controller function returning your index view.
you should write the type of Model at first of your View
#model List<ModelMath>
and for showing a view you need [HttpGet] attribute action
[HttpGet]
Public ActionResult Index()
{
//var mathList= new list<ModelMath>();
return view(mathList)
}
I am encountering the following error:
A data source must be bound before this operation can be performed.
I have a text box, the user enters a name, and clicks the submit button. The name is added to a list. I have researched the error but everything I try gives me the same error. Any insight on what I am doing wrong will be appreciated.
Model:
namespace RangeTest.Models
{
public class UserNameModel
{
[Key]
public int Id { get; set; }
[Display(Name = "Names Added List")]
public string FullName { get; set; }
}
}
Controller:
public ActionResult Admin()
{
return View();
}
[HttpPost]
public ActionResult Admin(UserNameModel model, IEnumerable<RangeTest.Models.UserNameModel> t)
{
List<UserNameModel> userList = new List<UserNameModel>();
model.FullName = t.FirstOrDefault().FullName;
userList.Add(model);
return View(userList.ToList());
}
View (Admin.cshtml):
#model IEnumerable<RangeTest.Models.UserNameModel>
#{
ViewBag.Title = "";
}
<div class="container"></div>
<div class="jumbotron">
#using (Html.BeginForm("Admin", "UserNames", FormMethod.Post, new { #id = "WebGridForm" }))
{
#Html.ValidationSummary(true)
WebGrid dataGrid = new WebGrid(Model, canPage: false, canSort: false);
//Func<bool, MvcHtmlString> func =
//(b) => b ? MvcHtmlString.Create("checked=\"checked\"") : MvcHtmlString.Empty;
<div class="table-bordered">
<div class="Title">Admin - Add names to range list</div><br />
<table id="TblAdd"class="table">
<tr>
#{
RangeTest.Models.UserNameModel t = new RangeTest.Models.UserNameModel();
}
#Html.Partial("_AddDynTable", t)
</table>
</div>
<div class="table-responsive">
<div class="Title">Names Added to Range List</div>
<table class="table">
<tr>
<td >
#dataGrid.GetHtml(columns: dataGrid.Columns(dataGrid.Column(format: #<text>#item</text>),
dataGrid.Column("", format: (item) => Html.ActionLink("Delete", "Delete", new { id = item.id }))))
</td>
</tr>
</table>
</div>
}
</div>
Partial View (_addDynTable.cshtml)
#model RangeTest.Models.UserNameModel
<tr>
<td>
Enter Full Name: #Html.TextBoxFor(m => m.FullName)
#*<input type="button" value="Create" id="ClickToAdd" />*#<input class="CreateBtn" type="submit" value="Add to List" /></td>
</tr>
Can you link info about the error please?
One thing I can see is your t object is null when you pass it to the partial view
RangeTest.Models.UserNameModel t = new RangeTest.Models.UserNameModel();
A new UserNameModel with no data in it, if your error is there that might be the problem
I am having difficulty passing an IEnumerable as a model. The data is populating a form on one page - and doing so correctly. Upon submission the model returns as null.
I've seen various posts on this and they mostly reference naming-conventions so I have attempted different methods of naming the parameters to try to avoid any confusion in the model binding.
I have also tried various models and helpers to try and pass the data and all have the same result.
Current implementation:
Models:
public class UserProfileListModel
{
public IEnumerable<UserProfileViewModel> UserProfileViewModels { get; set; }
}
public class UserProfileViewModel
{
public UserProfile UserProfile { get; set; }
public Role UserRole { get; set; }
public Team UserTeam { get; set; }
public Scope UserScope { get; set; }
}
View:
#model Project.WebUI.Models.UserPRofileListModel
SNIP
<fieldset>
<legend>Administrate Users:</legend>
<table class="adminTbl">
<thead>
<tr>
<th>UserName:</th>
<th>Role:</th>
<th>Team:</th>
<th>Scope:</th>
<th>Update:</th>
<th>Delete:</th>
</tr>
</thead>
<tbody>
#{foreach (var user in Model.UserProfileViewModels)
{
<tr>
<td>
<p>#user.UserProfile.UserName
#{if (!user.UserProfile.Membership.IsConfirmed)
{
using (Html.BeginForm("Confirm", "Account", FormMethod.Post, null)){
#Html.AntiForgeryToken()
#Html.Hidden("Token", user.UserProfile.Membership.ConfirmationToken)
#Html.Hidden("Name", user.UserProfile.UserName)
}
<input type="submit" value="Confirm" />}
}
</p>
</td>
#{using (Html.BeginForm("SaveUserChanges", "Account", FormMethod.Post, null))
{
#Html.AntiForgeryToken()
#Html.HiddenFor(u => user.UserProfile)
if (user.UserProfile.UserName != User.Identity.Name && user.UserProfile.Membership.IsConfirmed)
{
<td>
#Html.DropDownListFor(u => user.UserRole, Project.WebUI.Controllers.AccountController.RoleList, new { #class = "formdrop" })
</td>
<td>
#Html.DropDownListFor(u => user.UserTeam, Project.WebUI.Controllers.AccountController.TeamList, new { #class = "formdrop" })
</td>
<td>
#Html.DropDownListFor(u => user.UserScope, Project.WebUI.Controllers.AccountController.ScopeList, new { #class = "formdrop" })
</td>
<td>
<input type="submit" value="Save Changes" onclick="return confirm('Are you sure you wish to update this user? ')" />
</td>
}
else
{
/*If user is self or not yet confirmed these are here to buffer the delete button into the last cell*/
<td></td>
<td></td>
<td></td>
<td></td>
}
}
}
<td>
#Html.ActionLink("Delete", "Delete", new { user.UserProfile.UserId }, new
{
onclick = "return confirm('Warning: Action cannot be undone. Are you sure you wish to permanently delete this entry?')"
})
</td>
</tr>
}
}
</tbody>
</table>
</fieldset>
Controller:
Populate View:
public ActionResult AdministrateUsers()
{
populateLists();
var query = repository.UserProfiles.OrderBy(e => e.UserName);
List<UserProfileViewModel> list = new List<UserProfileViewModel>();
foreach(UserProfile up in query)
{
UserProfileViewModel vm = new UserProfileViewModel() { UserProfile = up };
list.Add(vm);
}
UserProfileListModel models = new UserProfileListModel()
{
UserProfileViewModels = list.OrderBy(up => up.UserProfile.UserName)
};
return View(models);
}
Accept Post:
public ActionResult SaveUserChanges(UserProfileListModel model)
{
foreach (UserProfileViewModel upvm in model.UserProfileViewModels)
{
UserProfile up = new UserProfile()
{
UserId = upvm.UserProfile.UserId,
UserEmail = upvm.UserProfile.UserName,
UserName = upvm.UserProfile.UserName
};
if (ModelState.IsValid)
{
repository.SaveUserProfile(up);
}
else
{
return View(model);
}
}
return RedirectToAction("Index", "Admin");
}
The code does still need a lot of work but I can't get past getting the model back to the controller on post. I have also tried returning the UserProfileViewModel instead of the entire list.
Can anyone tell what I am doing wrong?
Thanks!
You have a lot of invalid html including form elements as child elements of tr elements and duplicate id attributes. If you want to post back UserProfileListModel then you need a single form element and use an EditorTemplate or a for loop (not foreach) to render the controls so they are correctly named with indexers.
You are also trying to bind your dropdown lists to complex objects (for example UserProfile, Role etc.). <select> elements (and all form controls) only post back key/value pairs so you need to bind to a value type (for example UserProfile.UserId).
Your SaveUserChanges() post method is also trying access properties of UserProfile but you don't even have controls for properties of UserProfile in the form that post back to this method (for example UserId = upvm.UserProfile.UserId, UserEmail = upvm.UserProfile.UserName, ...) so they will always be null.
You probalby need to bind properties in POST method like here:
public ActionResult Create([Bind(Include = "Id,Subject,Text,IsImportant")] Announcment announcment) {... }
So it will be:
public ActionResult SaveUserChanges([Bind(Include = "UserProfile,Role,UserTeam,UserScope")]UserProfileListModel model)
Have you specified your action method is for HTTP Post? And change your action method to accept UserProfileViewModels instead.
[HttpPost]
public ActionResult SaveUserChanges(UserProfileViewModels model)
{
You are also only posting back one model: UserProfileViewModels.
You have your form in your foreach loop, so each UserProfileViewModels has its own form. If you want to change it to post back your UserProfileListModel, move
#{using (Html.BeginForm("SaveUserChanges", "Account", FormMethod.Post, null))
outside of your foreach.
I'm trying to add a second model to my index page(contains 2 partial views as a two column page) following the "Passing Multiple Models using ViewModel" section of this page: http://www.codeproject.com/Articles/687061/Using-Multiple-Models-in-a-View-in-ASP-NET-MVC-M
Ive created a model to hold the other 2 called MasterModel which is where i wish to store my other models
public class MasterModel
{
public UserInfo UserInfo { get; set; }
public LogDataServerDBEntities LogDataServerDBEntities { get; set; }
}
In my Index, _NewRequest _ExistingRequest pages i changed the model from
#model IEnumerable<TMTMonitorandCompare.Models.UserInfo>
to
#model IEnumerable<TMTMonitorandCompare.Models.MasterModel>
and changed my data display to be "Model.UserInfo"
#if (Model.UserInfo != null)
{
foreach (var item in Model.UserInfo)
{
<tr>
<td>
<input type="checkbox" class="checks">
</td>
<td class="modal2row" data-toggle="modal" data-id="1" data-target="#basicModal3">
#Html.DisplayFor(modelItem => item.CreationDateTime)
</td>
<td class="modal2row" data-toggle="modal" data-id="1" data-target="#basicModal3">
#Html.DisplayFor(modelItem => item.AppModeId)
</td>
</tr>
}
}
ControllerMethod:
[HttpGet]
public ActionResult Index(string filtername)
{
var filterresults = from m in db.UserInfoes
select m;
filterresults = filterresults.Where(x => x.UserCode.ToString().Contains(filtername)).OrderBy(x => x.UserCode);
CheckDownloaded();
PopulateViewbag();
return View(filterresults);
}
Only now i get the error :
Error 1 'System.Collections.Generic.IEnumerable' does not contain a definition for 'UserInfo' and no extension method 'UserInfo' accepting a first argument of type 'System.Collections.Generic.IEnumerable' could be found (are you missing a using directive or an assembly reference?)
Can anyone Explain to me where /with what I am going wrong ??
UserInfo is an object in MasterModel (not a collection). I suspect what you want is
public class MasterModel
{
public List<UserInfo> UserInfo { get; set; }
....
}
and in the main view
#model TMTMonitorandCompare.Models.MasterModel
then you can use
foreach (var item in Model.UserInfo)
{
....
Edit
Based on additional information from OP, the action method needs to be changed to match the model
[HttpGet]
public ActionResult Index(string filtername)
{
var filterresults = from m in db.UserInfoes select m;
filterresults = filterresults.Where(x => x.UserCode.ToString().Contains(filtername)).OrderBy(x => x.UserCode);
....
MasterModel model = new MasterModel();
model.UserInfo = filterresults;
// set other properties of model as required
return View(model);
}
How to I convert my simple MVC4 todo list application to AJAX?
The ideal answer would give me the steps that would lead to a successful conversion of this example to AJAX.
Note: I don't need an AJAX tutorial so much as an understanding of how the ASP.NET MVC architecture supports it.
Side Question: Why does #Html.EditorFor(model => model.TodoItemToCreate) bring back the value that was typed in even though the view model sets with this.TodoItemToCreate = null?
Model
public class TodosViewModel
{
List<string> todoItems;
public List<string> TodoItems
{
get { return this.todoItems ?? (todoItems = new List<string>()); }
}
[Display(Name="What do you need to do?")]
public string TodoItemToCreate { get; set; }
public bool AcceptTodoItem()
{
bool isThereAnItemToAccept = !string.IsNullOrWhiteSpace(this.TodoItemToCreate);
if (isThereAnItemToAccept)
{
this.TodoItems.Add(this.TodoItemToCreate);
this.TodoItemToCreate = null;
}
return isThereAnItemToAccept;
}
}
Controller
public class TodosController : Controller
{
public ActionResult Index()
{
return View(new TodosViewModel());
}
public ActionResult Create(TodosViewModel todosViewModel)
{
todosViewModel.AcceptTodoItem();
return View("Index", todosViewModel);
}
}
Index View
#model Programming.LearnWeb.Models.TodosViewModel
#{
ViewBag.Title = "Todos";
}
#using (Html.BeginForm("Create", "Todos"))
{
#Html.Partial("List")
#Html.LabelFor(model => model.TodoItemToCreate)
#Html.EditorFor(model => model.TodoItemToCreate)
<input type="submit" value="Create" />
}
#section Scripts {
#Scripts.Render("~/bundles/jqueryval")
}
List View
#model Programming.LearnWeb.Models.TodosViewModel
#{ int i = 0; }
<table>
#foreach (var todoItem in Model.TodoItems)
{
<tr>
<td>
#Html.Hidden("TodoItems[" + i++ + "]", todoItem)
#todoItem
</td>
</tr>
}
</table>
I got this done on my own - the result is at https://github.com/gabrielgreen/Todos.Mvc if anyone is interested or has any comments.
I put a fair amount of effort in and would appreciate any feedback that indicates if I did it right.