How to Programming with Asp.net-mvc-4

asp.net-mvc,asp.net-mvc-4,html-helper

The input buttons have a value. You can detect the value of the input button at the controller. <input type="submit" value="submitbutton"> <input type="submit" value="savebutton"> ...

How to add an Option label on ListBoxFor HTML Helper in ASP.Net MVC

The reason that Html.DropDownListFor() has an "option" parameter is that dropdown lists, when they don't have a selected value, are blank and you can't see their contents without expanding them. Listboxes, typically do display their contents, and thus an option is not necessary. An unselected listbox doesn't need something to...

ApplicationUser ICollection member not being saved in DB

c#,.net,entity-framework,asp.net-mvc-4,asp.net-mvc-5

You need to model your collection items. You could go many to many or one to many. // many to many public class Interest { public int InterestId { get; set; } public string InterestDesc { get; set; } // field can't match class name } // one to many...

Redirect to a different MVC controller when supplying an empty URL parameter?

c#,entity-framework,asp.net-mvc-4

If you pass the parameter in function we need put then or set a initial value. int pageNo = 0 or int? pageNo [HttpGet] public ActionResult FutureEvents(int pageNo = 0) { //code } all others functions without parameters open normally....

startIndex cannot be larger than length of string

You should have code in following way - string newFilenameExtension = Path.GetExtension("Sample".Trim()); string extn = string.Empty; if (!String.IsNullOrWhiteSpace(newFilenameExtension)) { extn = newFilenameExtension.Substring(1); } if(!String.IsNullOrWhiteSpace(extn)) { // Use extn here } ...

How do I set the URL for a new page/view when using ASP.NET MVC

javascript,jquery,asp.net-mvc-4

You'll have a file called RouteConfig.cs in App_Start. This defines the relationship between the url and the controller/action. If no-one has changed this, it will look like: routes.MapRoute( name: "Default", url: "{controller}/{action}/{id}", defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional } http://localhost/Example will match the default...

Redirect to different view when selecting dropdown then click button

Try: $("#Reference").on("change", function() { if($("#Reference option:selected").text() == "SCHEME") window.location.href = '/YOURCONTROLLER/Index/' + YOUR_PARAMETERS; }); ...

Return MVC view while submitting serialized data(MVC, Ajax)

jquery,ajax,asp.net-mvc,asp.net-mvc-4

You don't need json serialization nor AJAX. First create a class to hold your form fields. public class EmailForm { public string Name { get; set; } public string Address { get; set; } public string Message { get; set; } } Then your form will match the EmailForm property...

Using Bootstrap 3 DateTimePicker in ASP.NET MVC Project

jquery,asp.net-mvc,twitter-bootstrap,asp.net-mvc-4,bootstrap-datetimepicker

The easiest way in MVC with bootstrap would be to set the properties in your model with DataAnnotations. Here is a link that should help you. Using Data Annotations for Model Validation [DisplayName("Owners Date of Birth:")] Will display in the @Html.LabelFor and this will be the label for your field....

Display value of a textbox inside another textbox using AngularJs on button click

angularjs,asp.net-mvc-4

in your controller do , $scope.myFunction = function () { $scope.display = $scope.type; } in your html you have to change onclick to ng-click, <input type="button" value="button" ng-click="myFunction()" /> see this plunk for example, http://plnkr.co/edit/c5Ho1jlixwZFx7pLFm9D?p=preview...

MVC Push notification from server to client side

asp.net-mvc-4,push-notification

You can use SignalR : $.connection.hub.start().done(function () { $('#sendmessage').click(function () { // Call the Send method on the hub. chat.server.send($('#displayname').val(), $('#message').val()); // Clear text box and reset focus for next comment. $('#message').val('').focus(); }); }); use more info: tutorial...

How to bind anonymous type to viewModel in ASP.NET-MVC

c#,asp.net-mvc-4,oauth-2.0,openid,identityserver3

Dont leave your select query anonymus, just pass your select with viewModed like var v = (from pd in ge.Costs join od in ge.Services on pd.ServiceId equals od.ServiceId join ct in ge.ServiceTypes on pd.ServiceTypeId equals ct.ServiceTypeId where pd.ServiceTypeId.Equals(2) select new costViewModel() { CostId = pd.CostId, serviceName = od.serviceName, ServiceTypeValue =...

Use Bearer Token Authentication for API and OpenId authentication for MVC on the same application project

Ok, I found some information on the following post https://github.com/IdentityServer/IdentityServer3/issues/487 The github repo that implements the concepts discussed in the link can be found here https://github.com/B3nCr/IdentityServer-Sample/blob/master/B3nCr.Communication/Startup.cs Basically you need to map the api url to a different configuration using app.Map(). In my case, I changed my startup file to look...

Using Bootstrap Modal how to Render

asp.net-mvc,twitter-bootstrap,asp.net-mvc-4,asp.net-mvc-partialview

You need to pass an instance of VacationManagement.VacationRequest to the partial view. Change this @Html.RenderPartial("~/Views/VacationRequests/_CreateVacationRequest.cshtml", VacationManagement.VacationRequest() Vac); to this @{ Html.RenderPartial("_CreateVacationRequest", new VacationManagement.VacationRequest()); } ...

MVC Hidden field via HTML Helper in Form Post issue

c#,asp.net-mvc,entity-framework,asp.net-mvc-4,repository-pattern

Although not obvious and I found it difficult to find many articles on this subject to clarify it for me in the past the default behaviour in ASP.NET MVC is the following: If you are using HTML Helpers and you are rendering the same View in response to a POST...

A specified Include path is not valid. The EntityType '*Propiedad' does not declare a navigation property with the name 'Nombre'

Include is made to eagerly load navigation properties, meaning any property that is, in fact, another related entity. Since Nombre is a string, you do not need to include it: it is part of the entity that is returned from the database call. If Nombre were of a class representing...

get roles attribute of controller in OnActionExecuting in mvc

c#,asp.net-mvc,asp.net-mvc-4,actionfilterattribute

You can use GetFilterAttributes method of ActionDescriptor or ControllerDescriptor: protected override void OnActionExecuting(ActionExecutingContext filterContext) { var filters = new List<FilterAttribute>(); filters.AddRange(filterContext.ActionDescriptor.GetFilterAttributes(false)); filters.AddRange(filterContext.ActionDescriptor.ControllerDescriptor.GetFilterAttributes(false)); var roles = filters.OfType<AuthorizeAttribute>().Select(f => f.Roles); ... } ...

MVC Routing News Pages

asp.net-mvc-4,asp.net-mvc-routing

One way you could do this is to introduce an additional route into the route configuration RouteConfig.cs: routes.MapRoute( name: "News_seo_friendly", url: "{controller}/{id}/{seo}", defaults: new { action = "NewsItem", seo = UrlParameter.Optional } ); *Note the action value in this route. You will need a corresponding action method on that controller....

Exact need of jquery.validate.js

jquery,asp.net-mvc-4,jquery-validate

jQuery Validate is just an addon for jQuery you could use. So you still got to write the validation yourself, even though jQuery Validate makes a lot of things easier. Here is a documentation on the plugin you should check out, to use it for your needs....

MVC best practice for displaying static generated data

c#,asp.net-mvc,asp.net-mvc-4,razor

Based on the principle of not gold plating your code. You don't need the view model (right now) so don't add it. If you want a view model later then it's simple to add one. Your goal should be to create the simplest solution possible. For me that means the...

Bind multiselect selections to list of objects

ajax,asp.net-mvc-4,razor,model-view-controller,model

You have to create an [] or List of IDs in the ViewModel that will store selected values. public class ListingPlanEditorViewModel { public ListingPlan Plan { get; set; } public IEnumerable<Directory> SiteDirectories { get; set; } public int[] DirectoryIDs {get;set;} } The View will change according. The Directories selected will...

How do you send data to controller with ajax.beginform?

To make you understand how AJAX FORM works, I created below code - Lets say our model - public class Sale { public string SaleOwner { get; set; } public virtual Account Account { get; set; } } public class Account { public string Name { get; set; } }...

C# mvc4 - direct URL to controller

c#,asp.net-mvc-4,url,redirect

You might have forgotten to specify name of the controller in Html.ActionLink() parameter. Try Html.ActionLink("actionname","controllername");

Call back from server to client

You have to write an ActionResult that progressively write result to the response. so you can show the user some data in every foreach loop iteration. I have written a simple ActionResult that writes a number every 2 seconds: public class ProgressiveResult : ActionResult { public override void ExecuteResult(ControllerContext context)...

Convert ObjectResult to List

asp.net-mvc,asp.net-mvc-4,asp.net-mvc-partialview,renderpartial

If your ADDRESS_MASTER_Select_Distinct_Gaam method returns a list of strings, you can do this list=obj.Select(s=>new Member { AM_GAM_=x }).ToList(); But if your ADDRESS_MASTER_Select_Distinct_Gaam method is returning a list of some custom object where AM_GAM is a property of that custom class, you can do this list=obj.Select(s=>new Member { AM_GAM_=x.AM_GAM }).ToList(); ...

how to use Html.RenderPartial with ViewModel

There is a difference between RenderAction and RenderPartial. In the first you are calling action, but in second, you are directly calling partial view. So you cannot pass productId in RenderPartial, instead you need to pass List<ProductViewModel>. Also in RenderPartial, you need to give partial view name, not the action...

redirect to actionResult method from an api

c#,asp.net-mvc-4,asp.net-web-api

i tried something i am using the api as a link then do everything in the MVC controller. this way just passes the value i want from the actual api to the mvc. public actionResult WelcomeMessage() { var client = new WebClient(); string url = "http://" + Request.Url.Authority.ToString() + "/api/ReturnName";...

Delete Confirmation Window

jquery,asp.net-mvc,asp.net-mvc-4,telerik

Every time you call the DeleteItem function you are setting up a handler for the #yes button to delete a specific row. Even if you cancel and select a different row, the handler was already set, and will run on a future click of the button. To avoid this, you...

C# Using Bool, how to check a double is truly divisible by another number? [duplicate]

c#,asp.net-mvc-4

You can use the %-operator: bool isDivisible = 1115 % 100 == 0; The % operator computes the remainder after dividing its first operand by its second. All numeric types have predefined remainder operators. ...

MVC - How to render a 'a href' link in a View that's been stored in a database?

asp.net-mvc,asp.net-mvc-4,model-view-controller

Try this: <h4>@Html.Raw(Model.HomePageVM.AboutUsDescOne)</h4> Use this helper with caution though. If a user can edit this block of HTML then you might be making yourself vulnerable to an XSS attack: Text output will generally be HTML encoded. Using Html.Raw allows you to output text containing html elements to the client, and...

Is it possible to access an additional custom model property from viewdata.modelmetadata.properties?

Above, Stephen was able to point me in the right direction. My additional attribute was there the whole time, and I didn't even need the helper class, just the IMetaDataAware. @foreach (var property in ViewData.ModelMetadata.Properties) { <div style="margin:10px"> <strong>@(property.DisplayName)</strong> <br /> @foreach (var addProp in property.AdditionalValues) { if (addProp.Key ==...

How can I bind a list model which contains a complex type in MVC4?

You can use javascript to handle onsubmit event and merge data from those two fields into one that will be parsed as DateTime. Do you need some code to see how it could be done?

Saving child entity is not saving the foreign key with entity framework

c#,asp.net-mvc-4,identityserver3

In the declaration on DataAnnotation Bind at the Create method, you are not including Entidad property, never will be binded, just remove the Bind DataAnnotation or include it.

Setting up IdentityServer wtih Asp.Net MVC Application

You need to request the scopes required by the api when the user logs in. Scope = "openid profile roles baseballStatsApi" Authority = "https://localhost:44301/identity", ClientId = "baseballStats", Scope = "openid profile roles baseballStatsApi", ResponseType = "id_token token", RedirectUri = "https://localhost:44300/", SignInAsAuthenticationType = "Cookies", UseTokenLifetime = false, ...

Why mozilla changes the characters when i use the .net mvc statement redirect?

c#,asp.net-mvc-4,redirect,mozilla

%E2%80%8B is a URL-encoded, UTF-8 encoded ZERO-WIDTH SPACE character. You likely have one hiding in your application setting file for the ProActiveOffice-URL value. It was maybe pasted in that way, if you copied the URL from somewhere.

How Can ignore @ in Pattern in MVC

asp.net-mvc,asp.net-mvc-4

I'd look to create a HTML Helper, like so; public static class ValidationExtensions { public static string EmailRegex(this HtmlHelper helper) { return @"[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?"; } } Then use it in your view; <input requiredPattern="@Html.EmailRegex()" /> This will be re-useable between views and separate a complex regex (a programmer artefact) from html...

Need to Close the div in if condition MVC View

I think you need something like this, run two loops one for total and one for two items. so this condition of loose close elements will not occur. @for (int count = 0; count <= ViewBag.modal.Count; count++) { <div class="Class1"> @for (int counter = 0; counter < 2 && (count...

Why is my View not displaying value of ViewBag?

ViewBag is used when returning a view, not when redirecting to another action. Basically it doesn't persist across separate requests. Try using TempData instead: TempData["Tag"] = post.SelectedTag.ToString(); and in the view: <p><strong>Tag: @TempData["Tag"]</strong></p> ...

Form Post Not working While Submission

You have to fix your connection. But incorrect connection string may have different causes. Try to connect to your database with Server Explorer in Visual Studio then select your database and press F4 (Properties). You can see the correct connection string there. Put it in connection string in your web.config.

Conflicted with the REFERENCE constraint. How to solve this?

asp.net-mvc-4,nhibernate

Judging by that error, your repository is trying to delete the a user from its table but that user is referenced in another table (dbo.Invoices). So you are seeing a foreign key constraint error where you are trying to delete a record who's primary key is referenced in another table...

Partial View's checkbox state not returned to controller

jquery,json,asp.net-mvc-4,asp.net-ajax

asp.net MVC model binding can only bind to one model. To solve your issue you would simply need to create a base class that all your models, that may use a FacilityList , would derive from. Like so: public class FacilityViewModel { public Dictionary<string, bool> FacilityList { get; set; }...

How to download a file through ajax request in asp.net MVC 4

Please, try this in ajax success success: function () { window.location = '@Url.Action("DownloadAttachment", "PostDetail")'; } Updated answer: public ActionResult DownloadAttachment(int studentId) { // Find user by passed id // Student student = db.Students.FirstOrDefault(s => s.Id == studentId); var file = db.EmailAttachmentReceived.FirstOrDefault(x => x.LisaId == studentId); byte[] fileBytes = System.IO.File.ReadAllBytes(file.Filepath); return...

A property of model becomes null while posting

In MVC if you want to get some value back from view you have to have that value in the view first. It seems you have not inputted the Id in the view. Change your view code like this, for (var i = 0; i < Model.Count; i++) { <tr>...

ASP .Net MVC get decorated roles for unathorized request

The AuthorizeAttribute has a property called Roles that you should be able to check to get the information you want. As mentioned by @EricFunkenbusch you can assume that the user is not in any of those roles. https://msdn.microsoft.com/en-us/library/dd460323(v=vs.118).aspx...

Binding my view model to a view causes all check boxes to be checked

asp.net-mvc,asp.net-mvc-4,razor

In your view, remove <input type="checkbox" value="" checked="checked"/> Allow Access Because of checked="checked", this will always print out a checked checkbox....

MVC View trying to parse 2 strings in Details view

You can use the ternary operator along with an explicit code nugget (wrap the code in ()) <h1>@(Model.unittype == "PRP" && Model.name =="TTO" ? "CISCO" : "---")</h1> ...

mvc - Html.BeginForm postbacks to wrong controller

asp.net-mvc-4,html.beginform

I managed to solve this issue by moving partial view to Shared folder.

@Html.RadioButtonFor in mvc

c#,asp.net-mvc-4,razor

You need to change you model to represent what you want to edit. It needs to include a property for the selected User.Id and a collection of users to select from public class SelectUserVM { public int SelectedUser { get; set; } // assumes User.Id is typeof int public IEnumerable<User>...

Custom Data Annotation and MVC Helper

c#,asp.net-mvc,asp.net-mvc-4,razor

You're gonna need to extend the HtmlHelper class with the following: public static MvcHtmlString HelpTextFor<TModel, TValue>(this HtmlHelper<TModel> helper, Expression<Func<TModel, TValue>> expr) { var memberExpr = expr.Body as MemberExpression; if (memberExpr != null) { var helpAttr = memberExpr.Member.GetCustomAttributes(false).OfType<HelpTextAttribute>().SingleOrDefault(); if (helpAttr != null) return new MvcHtmlString(@"<span class=""help"">" + helpAttr.Text + "</span>"); }...

Why does my MVC binding stop working when I assign a nested model to a variable?

If you inspect the html you are generating you will see that they are not the same. Your first code block generates html like <input name="NestedModel[0].Id" id="NestedModel_0__Id" .../> <input name="NestedModel[1].Id" id="NestedModel_1__Id" .../> The second one will generate html like <input name="nestedModel.Id" id="nestedModel_Id" .../> <input name="nestedModel.Id" id="nestedModel_Id" .../> The second generates...

How to Upload file onclick of button of type=button not type=submit in mvc4 using html begin form

file,asp.net-mvc-4,button,upload,submit

@using(Html.BeginForm("Upload","Home",new {@id="frm"})) { <input type="file" id="upld" /> <input type="button" value="upload" id="btn" /> } <script> $('#btn').click(function(){ var has_selected_file = $('#upld').filter(function(){ return $.trim(this.value) != '' }).length > 0 ; if(has_selected_file){ $('#frm').submit(); } else{ alert('No file selected'); } }); I hope this is your requirement ...

Mvc Remote Attribute is sending “undefined” in query string

javascript,jquery,asp.net-mvc,asp.net-mvc-4,razor

You need to add @Html.HiddenFor(m=>m.UserId) at the view so that the binder will bind it to the remote validation controller or otherwise there is no value to bind ...

jQuery: How to traverse / Iterate over a list of object

Assign your collection to a javascript variable using var users = JSON.parse('@Html.Raw(Json.Encode(Model.AllUsers))'); which you can then iterate over $.each(users, function(index, item) { // access the properties of each user var id = item.Id; var name = item.Name; .... }); ...

MVC HandlerError attribute isn't redirecting to error View on Exception

asp.net-mvc,validation,asp.net-mvc-4

You cannot redirect via an AJAX post. You can send back the URL to the frontend to which you want to redirect the browser to and then use JS to navigate there. Backend - Home Controller [HttpPost] public ActionResult GoToMethodName() { return Json(Url.Action("Index", "MethodName")); } Views JS - This is...

mvc 4 custom format validator does not show error and allows the form to submit

In order to get client side validation, your attribute must implement IClientValidatable and you must include a client side script that adds a method to the client side $.validator object. This article THE COMPLETE GUIDE TO VALIDATION IN ASP.NET MVC 3 gives some good examples of how to implement it....

Angularjs ng-show doesn't work with Viewbag

angularjs,asp.net-mvc-4

Try this: <div ng-show="'@(ViewBag.AllowExport)'"> <a href="JavaScript:void(0);">Export</a> </div> ...

.Net MVC 4 using Windows Authentication - redirect unauthorized user

For this you will need a Custom Authorization to handle the unauthorized situations yourself. You will need a method like this: [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, Inherited = true, AllowMultiple = true)] public class AuthorizeAttribute : System.Web.Mvc.AuthorizeAttribute { protected override void HandleUnauthorizedRequest(System.Web.Mvc.AuthorizationContext filterContext) { if (filterContext.HttpContext.Request.IsAuthenticated) { filterContext.Result = new...

Setting up routing when RemoteAttribute specifies AdditionalFields

c#,asp.net,asp.net-mvc,angularjs,asp.net-mvc-4

When it receives a query such as /Validation/IsUserNameAvailable?userName=BOB&UserID=, MVC's model binder is confused because it does not know how to handle null/empty string params. Just change the param to an int and cast as necessary for your helper method: public JsonResult IsUserNameAvailable(string userName, int UserId) { var users = new...

Error while trying populate DropDownListFor from Database

c#,mysql,asp.net-mvc-4

In your GET method, your assign the SelectList used by @Html.DropDownList() using repository.ListData = repository.GetData(); however in the when you POST and return the view, you do not reassign the SelectList, hence Model.ListData is null. Your need to repeat the above line of code immediately before your call return View(inven);...

404 when converting asp.net mvc app to angularjs

MVC pattern means the controller takes requests and renders views. You are trying to bypass that and the Views/web.config prevents that. You can either render your view via the Controller (MVC-style), or configure a section of your app to serve static files ...

How to check if two entity entries of a collection are the same

c#,entity-framework,asp.net-mvc-4

I did it, comparing the key property from my collection, as Magnus suggested, like this: public TEntity UpdateCollection<TEntity, TChildren>(myappContext dbContext, TEntity parentObject, Expression<Func<TEntity, ICollection<TChildren>>> propertyExpression, ICollection<TChildren> objectChilren) where TEntity : class where TChildren : class { var parentEntityObject = dbContext.Entry<TEntity>(parentObject); List<TChildren> originalChildrenData =...

select random data from database in mvc4 C#

c#,asp.net-mvc-4

Do this: (from p in products orderby Guid.NewGuid() select p).Take(10).ToList() ...

check for value null on razor syntax

c#,asp.net-mvc,asp.net-mvc-3,asp.net-mvc-4,razor

try this: @{ if (propiedadesFormularioDetalle != null) { <div class="panel panel-default"> <div class="panel-heading">Propiedades adicionales</div> <div class="panel-body"> <dl class="dl-horizontal"> foreach (KeyValuePair<string, string> propiedad in propiedadesFormularioDetalle) { <dt> Html.DisplayName(propiedad.Key) </dt> <dd> Html.DisplayFor(prop => propiedad.Value) </dd> } </dl> </div> } </div> } ...

MVC 5 OWIN login with claims and AntiforgeryToken. Do I miss a ClaimsIdentity provider?

asp.net-mvc,asp.net-mvc-4,razor,asp.net-mvc-5,claims-based-identity

Your claim identity does not have ClaimTypes.NameIdentifier, you should add more into claim array: var claims = new List<Claim> { new Claim(ClaimTypes.Name, "Brock"), new Claim(ClaimTypes.Email, "[email protected]"), new Claim(ClaimTypes.NameIdentifier, "userId"), //should be userid }; To map the information to Claim for more corrective: ClaimTypes.Name => map to username ClaimTypes.NameIdentifier => map...

Use “Contains” to match part of string in lambda expression

c#,jquery,asp.net-mvc-4,lambda

I would search your initial items (before you made the into a list of TextValuePair) then you could do something like IEnumerable<Item> items = originalItemsList; switch (source) { case "1": // or whatever this should be items = items.Where(x => x.ItemNumber.IndexOf(data, StringComparison.InvariantCultureIgnoreCase) > -1); break; case "2": // or whatever...

How to get started with Visual studio 2012

c#,asp.net-mvc,asp.net-mvc-3,asp.net-mvc-4,visual-studio-2012

Download this book "Microsoft ASP.NET 4 Step By Step" by George Shepherd.I found it very helpful.It will address all the issues you raised here.Thank you.

Prevent page refresh on submit button click