I have a view,model and controller in my application. What I need is to pass the textbox value to a view and display on the result page.
Index.cshtml
#model MvcApplication5.Models.Employee
#{
ViewBag.Title = "Dashboard";
}
<script src="https://code.jquery.com/jquery-1.10.2.js"></script>
<h2>Dashboard</h2>
<div>
<h1>Employee </h1>
</div>
#using (Html.BeginForm("DisplayForm", "Dashboard", FormMethod.Post))
{
#Html.EditorFor(model =>model.username)
#Html.TextBoxFor(model => model.Company)
<button type="submit" id="ajax_method">submit </button>
}
Controller
public ActionResult DisplayForm(Employee model)
{
var employeeName = model.username;
var company = model.Company;
return View("Validateresult");
}
Model
public class Employee
{
public string username { get; set; }
public string Company { get; set; }
}
and validateresult.cshtml
#model MvcApplication5.Models.Employee
<h2>Validateresult</h2>
<div>
<div>username:
#Html.DisplayFor(model => model.username)
</div>
</div>
It seems a silly issue but im unable to find the reason why it's not displaying the username that i enter in to the textbox. The value is accessible in the controller but not in the view.
You're not passing the model to the view.
In controller, change return View("Validateresult"); to return View("Validateresult", model);
Related
currently I facing a very tricky problem of passing different list of data from view to controller.
I have created two input box to submit my data to controller so that it can be saved into CreateAccountsDB and further display it in the list of
Selected Subcon when Create button is pressed.
The problem I face here is:
when pressing the Create button with entered data from NewCompanyName textbox and NewEmail textbox, those entered data do pass data from View to Controller and save data into CreateAccountDB (not showing in View), but the entered data is not displaying in the list of Selected Subcon.
Create View
Here is the model.
public class Tender
{
public int ID { get; set; }
public string CompanyName { get; set; }
public List<CreateAccount> FrequentCompanyName { get; set; }
public List<CreateAccount> SuggestCompanyName { get; set; }
public List<CreateAccount> SelectedCompanyName { get; set; }
public string CompanyNameNew { get; set; }
public string EmailNew { get; set; }
public int? TradeID { get; set; }
public virtual Trade Trade { get; set; }
public int? CreateAccountID { get; set; }
public virtual CreateAccount CreateAccount { get; set; }
}
Here is the Get Method of Create function in controller:
[httpGet]
public ActionResult Create(int? id)
{
Tender tender = new Tender();
tender.FrequentCompanyName = db.createaccountDB.Include(tm => tm.Trade).Where(td => td.Frequency == 32).ToList();
tender.SuggestCompanyName = db.createaccountDB.Include(tm => tm.Trade).ToList();
if (tender.SelectedCompanyName == null)
{
tender.SelectedCompanyName = new List<CreateAccount>().ToList();
}
return View(tender);
}
and Here is my Post Method of Create function:
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Create([Bind(Include = "ID,CompanyName,TradeID,FrequentCompanyName,SelectedCompanyName,CreateAccountID")] Tender tender ,string CompanyNameNew, string Emailnew)
{
CreateAccount accnew = new CreateAccount();
accnew.CompanyName = CompanyNameNew;
accnew.Email = Emailnew;
if(ModelState.IsValid)
{
db.createaccountDB.Add(accnew);
db.SaveChanges();
}
if (tender.SelectedCompanyName == null)
{
tender.SelectedCompanyName = new List<CreateAccount>().ToList();
}
tender.FrequentCompanyName = db.createaccountDB.Include(tm => tm.Trade).Where(td => td.Frequency == 32).ToList();
tender.SuggestCompanyName = db.createaccountDB.Include(tm => tm.Trade).ToList();
tender.SelectedCompanyName.ToList().Add(accnew);
return View(tender);
}
and Here is my Create View:
#model Tandelion0.Models.Tender
#{
ViewBag.Title = "Create";
}
#using (Html.BeginForm())
{
#Html.AntiForgeryToken()
<div class="form-group">
#*#Html.LabelFor(model => model.ProjectName, htmlAttributes: new { #class = "control-label col-md-3" })*#
<div class="col-md-3">
<h5>New Company Name</h5>
#Html.EditorFor(model => model.CompanyNameNew, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.CompanyNameNew, "", new { #class = "text-danger" })
</div>
<div class="col-md-3">
<h5>New Email</h5>
#Html.EditorFor(model => model.EmailNew, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.EmailNew, "", new { #class = "text-danger" })
</div>
<div class="container" align="center">
<input type="submit" value="Create" class="btn btn-default" />
</div>
</div>
<div class="container row">
<!--selected subcon column-->
<div class="container row col-sm-4">
<h4>
Selected Subcon
</h4>
<div style="overflow-y: scroll; height:250px;">
<table class="table table-hover">
#foreach (var item in Model.SelectedCompanyName)
{
<tbody>
<tr>
<td>
#Html.DisplayFor(modelItem => item.CompanyName)
</td>
</tr>
</tbody>
}
</table>
</div>
</div>
</div>
}
So far I manage to save data from view into CreateAccountsDB when create button is pressed, but those data just couldn't pass it from Post method Create function to Get method Create function in Controller. The data and the list become null immediate after come out from post method Create function.
Because of data becomes null, the view couldn't receive any data from controller.
May I know how can i solve the the problem of passing data from controller to view? Is the way I pass data totally wrong?
Any advice is truly appreciated.
In your HttpPost Action method :
Instead of :
tender.SelectedCompanyName.ToList().Add(accnew);
You should be doing:
tender.SelectedCompanyName.Add(accnew);
Calling ToList().Add(object) won't actually add to SelectedCompanyName.Instead it will add to the new list object created by calling ToList() method which you are not assigning back to tender.SelectedCompanyName.
A better approach however would be to use Post/Redirect/Get Pattern.
Instead of returning a view from your post method , do a temorary redirect to your [HttpGet]Create action method passing the id of the tender.
I am new to MVC 4 and up to this point I have been retrieving data from one table and saving back to the same table. Now I have data from joined tables and need to save back to the same joined tables. I created a new model and created the get controller but when I try to save I get an error. Any constructive help would be appreciated.
Model
public partial class JoinClass
{
public string Name { get; set; }
public int EEID { get; set; }
public string Category { get; set; }
public int Points { get; set; }
public string Programs { get; set; }
public DateTime EntryDate { get; set; }
public DateTime Quarter { get; set; }
}
Controller
public ActionResult Create()
{
ViewBag.VBQuarter = new SelectList(db.Quarter2, "Id_Quarter2", "Quarter");
ViewBag.VBEEID = new SelectList(db.Users2, "Id_Users2", "EEID");
ViewBag.FK_Programs = new SelectList(db.Programs, "Id_Programs", "Programs");
ViewBag.EntryDate = DateTime.Now;
return View();
}
//
// POST:
[HttpPost]
public ActionResult Create(JoinClass joinclass)
{
if (ModelState.IsValid)
{
db.JoinClass.Add(joinclass);
db.SaveChanges();
return RedirectToAction("Index");
}
return View(joinclass);
}
View
#model 2014_V4.Models.JoinClass
#{
ViewBag.Title = "Create";
}
<h2>Create</h2>
#using (Html.BeginForm()) {
<fieldset>
<legend>Points</legend>
<div class="editor-label">
Quarter
</div>
<div class="editor-field">
#Html.DropDownList("VBQuarter")
</div>
<div class="editor-label">
User
</div>
<div class="editor-field">
#Html.DropDownList("VBEEID")
</div>
<div class="editor-label">
Programs
</div>
<div class="editor-field">
#Html.DropDownList("FK_Programs", String.Empty)
</div>
<div class="editor-label">
Points
</div>
<div class="editor-field">
#Html.EditorFor(model => model.Points)
</div>
<div class="editor-label">
Entery Date
</div>
<div class="editor-field">
#Html.TextBoxFor(model => model.EntryDate, new {#Value = ViewBag.EntryDate, #readonly="readonly" })
</div>
<p>
<input type="submit" value="Create" />
</p>
</fieldset>
}
#section Scripts {
#Scripts.Render("~/bundles/jqueryval")
}
Your problem is in constructor of JoinClass. You should not initialize virtual navigation properties collection with new HashSet<T>. Entity framework use its own collection type - EntityCollection<T>. You should not initialize navigation property collections at all.
PS: It is good practice to use special viewmodels with views and pass data from viewmodels to entity models explicit.
I have a view which contains a dropdown list and on dropdownlist item being selected I load a partial view. And when the form is submitted I want to be able to get both the values from main view and partial view during form submit.
Here is the main view
#model AdminPortal.Areas.Hardware.Models.CreateModule
#{
ViewBag.Title = "Create Module";
Layout = "~/Views/shared/_BootstrapLayout.basic.cshtml";
}
#Html.ValidationSummary(true)
<fieldset class="form-horizontal">
<legend>Add a Module <small>Create</small></legend>
#using (Html.BeginForm("CreateModule", "Module", new{id="AddModuleForm"}))
{
#Html.ValidationSummary(true)
<div class ="controls">
<div class="input-block-level">#Html.TextBoxFor(model => model.ModuleId, new {#placeholder = "ModuleID"})</div>
<br/>
<div class ="input-block-level" id="selectedModuleTypeName">#Html.DropDownListFor(model => model.SelectedModuleTypeName, Model.TypeNames,"Select Moduletype", new{id = "ModuleList"})</div>
<br/>
<div id="partialDiv"></div>
</div>
<div class="form-actions" id="buttons">
<button type="submit" class="btn btn-primary" id="Submit">Save changes</button>
#Html.ActionLink("Cancel", "ModuleList", null, new { #class = "btn " })
</div>
}
</fieldset>
<div>
#Html.ActionLink("Back to List", "ModuleList")
</div>
<script>
$("#buttons").hide();
$("#ModuleList").on("change", function() {
var modId = $(this).val();
$.get('#Url.Action("GetModulePropertyName", "Module")', { moduleTypeValue: modId }, function(result) {
$("#partialDiv").html(result);
});
//uncomment following section to check if the partial view is working properly
/*.done(function() { alert("done"); })
.fail(function() { alert("fail"); })
.always(function() { alert("completed"); });*/
});
$("#buttons").show();
</script>
and here is the partial view
#model IEnumerable<string>
#foreach(var names in Model)
{
<div class="input-block-level">#Html.TextBoxFor(m=>names, new{Value="", placeholder=names})</div>
<br/>
}
Here is my model
public class CreateModule
{
//Empty form to handle form serialization
public CreateModule()
{
}
[Required]
public string ModuleId { get; set; }
[DataType(DataType.DateTime)]
public DateTime DateEntered { get; set; }
[Required]
public string SelectedModuleTypeName { get; set; }
public IEnumerable<SelectListItem> TypeNames { get; set; }
public List<Property> Properties { get; set; }
}
public class Property
{
public string Name { get; set; }
public string Value { get; set; }
}
Here is the method that script in main view forwards to
[HttpGet]
public ActionResult GetModulePropertyName(string moduleTypeValue)
{
var moduleKindId = _repository.GetModuleKindId(moduleTypeValue);
var modulePropertyNames = _repository.GetModuleKindPropertyNames(moduleTypeValue);
return PartialView("GetModulePropertyName",modulePropertyNames);
}
and finally here is httppost method for the main view
[HttpPost]
public ActionResult CreateModule(CreateModule moduleV)
{
var module = new Module
{
ModuleTypeId = Convert.ToInt64(moduleV.SelectedModuleTypeName),
ModuleId = moduleV.ModuleId,
DateEntered = moduleV.DateEntered,
};
if (ModelState.IsValid)
{
_repository.AddModule(module);
Success("Module added successfully!");
return RedirectToAction("ModuleList", "Module", new {area = "Hardware"});
}
Error("Something went wrong!");
return RedirectToAction("CreateModule", "Module", new { area = "Hardware" });
}
Current situation:
When the form is posted, the properties value of the model that is being passed via partial view is null. I get other values, like typename, Module ID.
What I'd want:
I also want to get the value of properties that is being passed via partial view.
You don't have any input field for the Properties property anywhere in your form. So it will always be null. That's normal.
Here's how you could proceed. Start by setting the correct navigational property so that the helper generates correct names of the corresponding input fields.
Also make sure that you are passing an IEnumerable<Property> model to the partial if you want to be able to get them back correctly:
[HttpGet]
public ActionResult GetModulePropertyName(string moduleTypeValue)
{
var moduleKindId = _repository.GetModuleKindId(moduleTypeValue);
IList<Property> model = ...
return PartialView("GetModulePropertyName", model.ToList());
}
and in your partial view use an editor template:
#model IList<Property>
#{
// This indicates the current navigational context to the helpers
ViewData.TemplateInfo.HtmlFieldPrefix = "Properties";
}
#Html.EditorForModel()
and the last step is to define a custom editor template for the Property class: ~/Views/Shared/EditorTemplates/Property.cshtml (note that the name and location of the template is important)
#model Property
<div class="input-block-level">
#Html.HiddenFor(m => m.Name)
#Html.TextBoxFor(m => m.Value, new { placeholder = Model.Name })
</div>
<br />
Try using the
List<Property>
as a model in your partial view and pass the CreateModule.Properties as model from your View
The problem is model binder can not figure out there
#Html.TextBoxFor(m=>names, new{Value="", placeholder=names})
belongs to as the "names" is not a property on your model class. If you need to bind to the CreateModule.Properties you need to change the partial view to emit textboxes with aproprate names, like this one:
#model IEnumerable<string>
#
{
int i=0;
}
#foreach(var names in Model)
{
<div class="input-block-level">#Html.TextBox("Properties[" + i + "].Value")</div>
<br/>
}
I must have something incorrectly setup as I can't get the UpdateModel function to correctly update my model based on information passed in via a FormCollection.
My View looks like:
#model NSLM.Models.Person
#{
ViewBag.Title = "MVC Example";
}
<h2>My MVC Model</h2>
<fieldset>
<legend>Person</legend>
#using(#Html.BeginForm())
{
<p>ID: #Html.TextBox("ID", Model.ID)</p>
<p>Forename: #Html.TextBox("Forename", Model.Forename)</p>
<p>Surname: #Html.TextBox("Surname", Model.Surname)</p>
<input type="submit" value="Submit" />
}
</fieldset>
My model is:
namespace NSLM.Models
{
public class Person
{
public int ID;
public string Forename;
public string Surname;
}
}
and my controller is:
[HttpPost]
public ActionResult Details(FormCollection collection)
{
try
{
// TODO: Add update logic here
Models.Person m = new Models.Person();
// This doesn't work i.e. the model is not updated with the form values
TryUpdateModel(m);
// This does work
int.TryParse(Request.Form["ID"], out m.ID);
m.Forename = Request.Form["Forename"];
m.Surname = Request.Form["Surname"];
return View(m);
}
catch
{
return View();
}
}
as you can see if I manually assign each property it works fine, so what have I not set that would get the model to be updated with the form values?
Thanks,
Mark
Replace fields with properties in your model, i.e.:
namespace NSLM.Models
{
public class Person
{
public int ID {get; set;}
public string Forename {get; set;}
public string Surname {get; set;}
}
}
By the time the call gets to the action method any automatic model binding has already been performed. Try changing the input parameter of your action method to accept a Person instance. In that case the model binder will try to create the instance and populate it from the values passed by your form.
try this :
view :
#model NSLM.Models.Person
#{
ViewBag.Title = "MVC Example";
}
<h2>My MVC Model</h2>
<fieldset>
<legend>Person</legend>
#using(#Html.BeginForm())
{
#Html.HiddenFor(model => model.ID)
<p>Forename: #Html.EditorFor(model => model.Name)
#Html.ValidationMessageFor(model => model.Name)
</p>
<p>Surname: #Html.EditorFor(model => model.Surname)
#Html.ValidationMessageFor(model => model.Surname)
</p>
<input type="submit" value="Submit" />
}
</fieldset>
Controller :
[HttpPost]
public ActionResult Details(Person p)
{
if (ModelState.IsValid)
{
db.Entry(p).State = EntityState.Modified;
db.SaveChanges();
return RedirectToAction("Index");
}
return View(p);
}
I have a model with an object that contains a collection like this:
namespace API.Example.Models
{
public class OrderTest
{
public string UserName { get; set; }
public string Token { get; set; }
public POCO.Order Order { get; set; }
}
}
namespace Supertext.API.POCO
{
public class Order
{
public List<TranslationGroup> Groups = new List<TranslationGroup>();
}
public class TranslationGroup
{
public string GroupId { get; set; }
}
}
The Order object contains a collection called Groups.
In the view I display the collection like this (with the index like explained in several examples)
#Html.LabelFor(m => m.UserName)
#Html.TextBoxFor(m => m.UserName)
#for (int i = 0; i < Model.Order.Groups.Count; i++)
{
#Html.LabelFor(m => Model.Order.Groups[i].GroupId)
#Html.TextBoxFor(m => Model.Order.Groups[i].GroupId)
}
And this is the Controller method that gets called:
[HttpPost]
public ActionResult Index(Models.OrderTest model)
The HTML of the UserName element:
<input id="UserName" name="UserName" style="width:300px;" type="text" value="">
and the GroupId element:
<input id="Order_Groups_0__GroupId" name="Order.Groups[0].GroupId" type="text" value="1">
I can access the UserName, but there is nothing in the collection.
What am I missing?
And whats the difference between using m.UserName and Model.Order.Groups (I mean m and Model). Is that my issue?
Each property of POCO entity use like a property managed by the CLR. Let the CLR manage the create of instance and etc.. or you can generate conflicts that can throw issues like you have.
Change your Order code to this:
public class Order
{
public List<TranslationGroup> Groups { get; set; }
}
--EDIT
I create a new project and add the following class:
public class TranslationGroup
{
public string GroupId { get; set; }
}
public class Order
{
public List<TranslationGroup> Groups { get; set; }
}
public class OrderTest
{
public string UserName { get; set; }
public string Token { get; set; }
public Order Order { get; set; }
}
Here my code behind of the OrderTestController:
public ActionResult Index()
{
var orderTest = new Models.OrderTest()
{
UserName = "Vinicius",
Token = "12as1da58sd558",
Order = new Models.Order()
{
Groups = new List<Models.TranslationGroup>()
{
new Models.TranslationGroup() { GroupId = "a54s"},
new Models.TranslationGroup() { GroupId = "a87d"},
new Models.TranslationGroup() { GroupId = "2gf4"}
}
}
};
return View(orderTest);
}
[HttpPost]
public ActionResult Index(Models.OrderTest model)
{
return View();
}
And Index View:
#model TestCollection.Models.OrderTest
#{
ViewBag.Title = "Index";
}
<h2>
Index</h2>
<script src="#Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script>
<script src="#Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>
#using (Html.BeginForm())
{
#Html.ValidationSummary(true)
<fieldset>
<legend>OrderTest</legend>
<div class="editor-label">
#Html.LabelFor(model => model.UserName)
</div>
<div class="editor-field">
#Html.EditorFor(model => model.UserName)
#Html.ValidationMessageFor(model => model.UserName)
</div>
<div class="editor-label">
#Html.LabelFor(model => model.Token)
</div>
<div class="editor-field">
#Html.EditorFor(model => model.Token)
#Html.ValidationMessageFor(model => model.Token)
</div>
#for (int i = 0; i < Model.Order.Groups.Count; i++)
{
<div class="editor-label">
#Html.LabelFor(m => Model.Order.Groups[i].GroupId)
</div>
<div class="editor-field">
#Html.TextBoxFor(m => Model.Order.Groups[i].GroupId)
</div>
}
<p>
<input type="submit" value="Create" />
</p>
</fieldset>
}
<div>
#Html.ActionLink("Back to List", "Index")
</div>
So, if you run, and go to OrderTest view, you 'll see all attributes filled, and when you click in create, all things will be binded (the collection as well).