I am facing issues with bool? ( Nullable) while rending from MVC3 view.
Model:
[MustBeTrue(ErrorMessageResourceName = "EmailConfirmationRequired", ErrorMessageResourceType = typeof(Site))]
public bool? IsEmailConfirmed { get; set; }
Views:
#Html.LabelFor(x => x.IsEmailConfirmed, string.Format(CultureInfo.CurrentCulture, "{0}", Site.EmailConfirmText))
<div class="inputClass" id="disabled">
<div>
#if (Model.IsEmailConfirmed == null)
{ Model.IsEmailConfirmed = false; }
#Html.CheckBoxFor(x => x.IsEmailConfirmed.Value)
</div>
</div>
#Html.ValidationMessageFor(x => x.IsEmailConfirmed)
After ticking the checkbox from the view,the controller is not loading its object asscociated with it. It displays "null", instead of "true" for IsEmailConfirmed. I am suspecting that the IsEmailConfirmed.Value is internally mismatched with the value IsEmailConfirmed. If not, could someone help me to resolve on this please?
Related
I'm developing an MVC 5 web application. Within a particular View I need to validate a ViewModel, however, I need some of the validation only to occur depending on the users inpupt.
For example, I have a ViewModel
public class TimeEntryViewModel
{
public int proposalID { get; set; }
public int proposalCode { get; set; }
public int nonchargeCode { get; set; }
public SelectList UserProposals { get; set; }
public SelectList TimeEntryClientCodes { get; set; }
public SelectList TimeEntryNonChargeCodes { get; set; }
}
This ViewModel is passed to a View which looks like this
<div class="form-group">
#Html.LabelFor(m => m.proposalID, "Proposal")
#Html.DropDownListFor(m => m.proposalID, Model.UserProposals, "No Proposal", new { #class = "form-control"})
#Html.ValidationMessageFor(m => m.proposalID)
</div>
<div id="ClientCodes" class="form-group" style="display:none">
#Html.LabelFor(m => m.proposalCode, "Client")
#Html.DropDownListFor(m => m.proposalCode, Model.TimeEntryClientCodes, "Select", new { #class = "form-control" })
#Html.ValidationMessageFor(m => m.proposalCode)
</div>
<div id="NonChargeCodes" class="form-group">
#Html.LabelFor(m => m.nonchargeCode, "Non Charge")
#Html.DropDownListFor(m => m.nonchargeCode, Model.TimeEntryNonChargeCodes, "Select", new { #class = "form-control" })
#Html.ValidationMessageFor(m => m.nonchargeCode)
</div>
If the user selects 'No Proposal' from the first drop down list, then the drop down list 'nonchargeCode' appears and I need to validate so that the user selects an option from it.
However, if the user selects another option from the first down drop list, then the drop down list 'nonchargeCode' will disappear and another drop down called 'proposalCode' will appear. I then want to validate to ensure the user selects an option from this drop down, but not the 'nonchargeCode' (which will be hidden).
In an MVC 4 application I previously coded, I used http://fluentvalidation.codeplex.com/ to help with this scenario.
I'm just wondering if anyone else had used anything else to overcome this problem of conditional validation? If so, I'd be keen to hear.
Thanks again.
You can use conditional validation in jQuery and in fluentvalidation.
You can use a jQuery selector on the validation, something like this.
I'm not sure about the HTML element names.
$( "#myform" ).validate({ rules: {
proposalCode: {
required: "#proposalCode:visible"
} }
Check out jQuery Dependency expression for more information.
In FluentValidation validation (Server side only) you can use the 'When' expression.
RuleFor(r => r.proposalCode).NotNull().When(e => // Check selected value);
Check out the documentation here
I think this should get you started.
I am making my first tentative steps into MVC3 and have come across an issue with the translation of navigation properties within a model to a view. It seems that in the view navigational properties do not allow client side validation nor is the "Display" label attribute picked up.
I have the following simple model:
public class Entity
{
[Key,
ScaffoldColumn(false)]
public int Entity_Id { get; set; }
[Display(Name = "Entity Name"),
Required(ErrorMessage = "Please enter the entity name."),
StringLength(150, ErrorMessage = "Please ensure that the entity name is under 150 characters.")]
public string Entity_Nm { get; set; }
[Display(Name = "Entity Type"),
Required(ErrorMessage="Please select the entity type"),
ForeignKey("EntityType")]
public int EntityType_Id { get; set; }
public virtual EntityType EntityType { get; set; }
}
Which references this model:
public class EntityType
{
[Key]
public int EntityType_Id { get; set; }
[Display(Name = "Entity Name"), Required(ErrorMessage="Please enter the entity type name.")]
public string EntityType_Nm { get; set; }
}
When I create a controller with read/write actions and views for this model I get the following create form:
<fieldset>
<legend>Entity</legend>
<div class="editor-label">
#Html.LabelFor(model => model.Entity_Nm)
</div>
<div class="editor-field">
#Html.EditorFor(model => model.Entity_Nm)
#Html.ValidationMessageFor(model => model.Entity_Nm)
</div>
<div class="editor-label">
#Html.LabelFor(model => model.EntityType_Id, "EntityType")
</div>
<div class="editor-field">
#Html.DropDownList("EntityType_Id", String.Empty)
#Html.ValidationMessageFor(model => model.EntityType_Id)
</div>
<p>
<input type="submit" value="Create" />
</p>
</fieldset>
This is fine apart from the label for the Entity Type drop down, for some reason it is not picking up the "Display" attribute of the navigation property within the model (note the lack of a space). Also client side validation is not enabled for the dropdown list (server side validation works without issue) despite decorating the property with a "Required" attribute. Client side validation works on the other fields. Please note that all the required .js script files have been included and I have also added the relevant enable validation keys to the web.config.
Any ideas what I am missing here? Thanks one and all.
for DropDownList Display issue just try below
#Html.LabelFor(model => model.EntityType_Id)
I am using paged list in a search actionresult to page my results. It returns events within a date range or category.The first page returned is fine, but the second never has any results. There are over 7 results that the query returns when I check a breakpoint. Here is my search controller;
public ActionResult Search(DateTime? q, DateTime? e, int? EventCategoryId, Event model)
{
var SearchEvents = db.Events
.OrderByDescending(r => r.start)
.Where(r =>
r.start >= q &&
r.end <= e &&
r.EventCategoryId == EventCategoryId ||
r.start >= q ||
r.EventCategoryId == EventCategoryId);
ViewBag.QValue = model.start;
ViewBag.EValue = model.end;
ViewBag.ListValue = model.EventCategoryId;
ViewBag.EventCategoryId = new SelectList(db.EventsCategories, "Id", "Name", ViewBag.ListValue);
var pageIndex = model.Page ?? 1;
var results = SearchEvents.ToPagedList(pageIndex, 4);
ViewBag.Names = results;
return View(results);
}
}
And here is my view;
#model IPagedList<RealKaac.Models.Event>
#{
ViewBag.Title = "SearchResults";
}
#using PagedList;
#using PagedList.Mvc;
#using System.Linq;
<div id="Content">
<h2>SearchResults</h2>
<div id="EventSearch">
#using (Html.BeginForm("Search", "Event"))
{
<p class="EventPar">Start Date: </p>
<input id ="datepicker" type ="text" name ="q" value="#ViewBag.QValue" />
<p class="EventPar">End Date: </p>
<input id ="datepickerend" type ="text" name ="e" value ="#ViewBag.EValue" />
<p class="EventPar">Category:</p>
#Html.DropDownList("EventCategoryId")
<input id="EventButton" style="padding:1px;" type ="submit" name ="Search" value = "Search" />
}
</div>
<div id="IndexEvents">
#foreach (var item in Model)
{
<div class ="event">
<div class="eventname">
#*<p>#Html.DisplayFor(modelItem => item.Name)</p> *#
</div>
<div class = "etitle">
<p>#Html.DisplayFor(modelItem => item.title)</p>
</div>
<div class="eventsdesc">
<p>#Html.DisplayFor(modelItem => item.EventDescription)</p>
</div>
<ul class ="datelink">
<li style="margin-right:120px;">This event starts on the
#Html.DisplayFor(modelItem => item.start) and ends on the
#Html.DisplayFor(modelItem => item.end)</li>
<li>Click #Html.DisplayFor(modelItem => item.EventWebsite) for more info.</li>
</ul>
</div>
}
</div>
</div>
#Html.PagedListPager((IPagedList)ViewBag.Names, page => Url.Action("Search", new { page }))
I'm fairly new at this so I'm probably missing something small, any advice is greatly appreciated.
Thanks.
The Url.Action has only one parameter to it (the page #), which doesn't match the controller's method. It isn't providing access to any of the other parameters (such as the start/end dates). So, the second "page" query for the next 4 Events likely isn't working. If you created a SearchModel that had the necessary properties on it, you should easily be able to send the values from one page to the next.
public ActionResult Search(SearchModel search) {
//... (your search code)
// ... then, before returning the View,
ViewBag.SearchParameters = search;
return View(results);
where SearchModel has properties like:
public class SearchModel {
public DateTime? StartDate { get; set; }
public DateTime? EndDate { get; set; }
public int Page? { get; set; }
// etc.
}
Then, you could:
#Html.PagedListPager((IPagedList)ViewBag.Names, page => Url.Action("Search", new SearchModel { search = ViewBag.SearchParameters }))
Or you could just use named parameters:
#Html.PagedListPager((IPagedList)ViewBag.Names, page => Url.Action("Search", new { page = page, q = ViewBag.QValue, /* ... etc. */ }))
I have a complex object that I want to use in an edit view. To simplify things I have created a ViewModel and have successfully created the edit view page, and everything renders correctly. When I hit save, everything falls apart.
The ViewModel is as follows:
public class ClosureEditViewModel
{
public Model.Closure Closure { get; set; }
public Model.School School { get; set; }
public Model.ClosureDetail CurrentDetails { get; set; }
}
Some of the View is as follows:
<div class="display-label">School</div>
<div class="display-field">
#Html.DisplayFor(model => model.Closure.School.Name)
</div>
<div class="display-label">Closed</div>
<div class="display-field">
#Html.DisplayFor(model => model.Closure.Logged)
</div>
....
<div class="editor-label">
#Html.LabelFor(model => model.CurrentDetails.DateOpening, "Date Opening (dd/mm/yyyy)")
</div>
<div class="editor-field">
#Html.TextBox("DateOpening", Model.CurrentDetails.DateOpening.ToString("dd/MM/yyyy"))
#Html.ValidationMessageFor(model => model.CurrentDetails.DateOpening)
</div>
....
<tr>
<td>
#Html.CheckBoxFor(model => model.CurrentDetails.Nursery, (Model.School.Nursery ? null : new { #disabled = "disabled" }))
</td>
The important parts of the controller are as follows:
public ActionResult Edit(int id)
{
Data.IClosureReasonRepository reasonRepository = new Data.SqlServer.Repositories.ClosureReasonRepository(UnitOfWork);
IEnumerable<Model.ClosureReason> reasons = reasonRepository.GetAll();
Model.Closure closure = ClosureRepository.GetClosure(id);
Model.ClosureDetail currentDetail = closure.ClosureDetails.Last();
ViewModels.ClosureEditViewModel editClosure = new ViewModels.ClosureEditViewModel() { Closure = closure, School = closure.School, CurrentDetails = closure.ClosureDetails.Last() };
ViewBag.ReasonId = new SelectList(reasons, "Id", "Name", currentDetail.ReasonId);
return View(editClosure);
}
[HttpPost]
public ActionResult Edit(ViewModels.ClosureEditViewModel newDetail)
{
//if (ModelState.IsValid)
//{
//}
Data.IClosureReasonRepository reasonRepository = new Data.SqlServer.Repositories.ClosureReasonRepository(UnitOfWork);
IEnumerable<Model.ClosureReason> reasons = reasonRepository.GetAll();
ViewBag.ReasonId = new SelectList(reasons, "Id", "Name", newDetail.CurrentDetails.ReasonId);
return View(newDetail);
}
When I hit save the following message appears:
Object reference not set to an instance of an object.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
Line 94: </td>
Line 95: <td>
Line 96: #Html.CheckBoxFor(model => model.CurrentDetails.P1, (Model.School.P1 ? null : new { #disabled = "disabled" }))
Line 97: </td>
Line 98: <td>
I just can't figure out why it is having problems with the School property but neither of the other two.
James :-)
It seems that Model.School is null when you render the view once again in the POST action. Make sure that it isn't null because in your view you don't have a single input field bound to the School property => this property will be null inside your POST controller action.
[HttpPost]
public ActionResult Edit(ClosureEditViewModel viewModel)
{
... some operations
// Make sure that viewModel.School is not null
// Remember that the checkbox is bound to CurrentDetails.P1 so
// when you post to this action there is nothing that will initialize
// the School property => you should do whatever you did in your GET
// action in order to initialize this property before returning the view
return View(viewModel);
}
i just wanted to know how to enable client side validations for dropdowns in asp.net mvc 2.
The scenario would be that the dropdown will contain a "Select" item and the list of other items..,The user should select other items... the validation should fire when the user does not select the other items
public class FacilityBulletinModel
{
[DisplayName("Select a Facility")]
public List<SelectListItem> ListFacility { get; set; }
[DisplayName("Facility Bulletin")]
[Required(ErrorMessage = "Please create a Bulletin")]
public string FacilityBulletin { get; set; }
[DisplayName("Active")]
public bool Active { get; set; }
[HiddenInput(DisplayValue = false)]
public int SiteId { get;set;}
}
in my view
Select Facility <span class="err">*</span><br />
<%=Html.DropDownListFor(model => model.ListFacility, null, new {onChange="updateSiteId()" })%>
<span class="err"> <%= Html.ValidationMessageFor(model => model.ListFacility) %></span>
First, if a dropdown is required, add the [Required] attribute to your model property.
Then, enable client side validation somewhere at the top of your view:
<% Html.EnableClientValidation() %>
Then just add a validation message:
<div class="inputField">
<%= Html.LabelFor(model => model.property)%>
<%= Html.DropDownListFor(model => model.property, (SelectList)ViewData["myselelectlist"])%>
<%= Html.ValidationMessageFor(model => model.property)%>
</div>
(this requries MicrosoftMvcValidation.js to be loaded)