asp.net-mvc - w3toppers.com

pass enum to html.radiobuttonfor MVC3

using System; using System.Collections.Generic; using System.Linq; using System.Linq.Expressions; using System.Text; using System.Web; using System.Web.Mvc; using System.Web.Mvc.Html; namespace YourNamespace { public static class HtmlExtensions { public static MvcHtmlString RadioButtonForEnum<TModel, TProperty>( this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression ) { var metaData = ModelMetadata.FromLambdaExpression(expression, htmlHelper.ViewData); var names = Enum.GetNames(metaData.ModelType); var sb = new StringBuilder(); foreach (var name in … Read more

Unobtrusive validation not working on dynamically-added partial view

Ok, I am going to start over with a new answer here. Before you call $.validator.unobtrusive.parse, remove the original validator and unobtrusive validation from the form like so: var form = $(“#main_div”).closest(“form”); form.removeData(‘validator’); form.removeData(‘unobtrusiveValidation’); $.validator.unobtrusive.parse(form); This same answer is documented here.

MVC Html.Partial or Html.Action

Here are what I consider my guidelines on using Html.Action or Html.Partial Html.Partial Use Html.Partial when you are rendering static content or, If you are going to pass data from the ViewModel that is being sent to the main view Html.Action Use Html.Action when you actually need to retrieve additional data from the server to … Read more

How do I set the request timeout for one controller action in an asp.net mvc application

You can set this programmatically in the controller:- HttpContext.Current.Server.ScriptTimeout = 300; Sets the timeout to 5 minutes instead of the default 110 seconds (what an odd default?)

Is it possible to create a generic @helper method with Razor?

This is possible to achieve inside a helper file with the @functions syntax but if you want the razor-style readability you are referring to you will also need to call a regular helper to do the HTML fit and finish. Note that functions in a Helper file are static so you would still need to … Read more

asp.net mvc decorate [Authorize()] with multiple enums

Here is a simple and elegant solution which allows you to simply use the following syntax: [AuthorizeRoles(MyEnum.Admin, MyEnum.Moderator)] When creating your own attribute, use the params keyword in your constructor: public class AuthorizeRoles : AuthorizeAttribute { public AuthorizeRoles(params MyEnum[] roles) { … } protected override bool AuthorizeCore(HttpContextBase httpContext) { … } } This will allow … Read more

Defining multiple Foreign Key for the Same table in Entity Framework Code First

To achieve what you want you need to provide some aditional configuration.Code First convention can identify bidirectional relationships, but not when there are multiple bidirectional relationships between two entities.You can add configuration (using Data Annotations or the Fluent API) to present this information to the model builder. With Data Annotations, you’ll use an annotation called … Read more

The ViewData item that has the key ‘MY KEY’ is of type ‘System.String’ but must be of type ‘IEnumerable’

I had same problem, and finally I got the answer… The problem is that in the POST action, after submitting the form, the ModelState is not valid, or it’s catching an error in try/catch, so the View is returned. But this time the View has not the ViewData[“basetype”] correctly set. You need to populate it … Read more

Fill drop down list on selection of another drop down list [closed]

Model: namespace MvcApplicationrazor.Models { public class CountryModel { public List<State> StateModel { get; set; } public SelectList FilteredCity { get; set; } } public class State { public int Id { get; set; } public string StateName { get; set; } } public class City { public int Id { get; set; } public int … Read more

ASP.NET MVC3 and Windows Auth on IIS keeps redirecting to /Account/Login

Check whether you have WebMatrix.Data.dll and/or WebMatrix.WebData.dll deployed in the bin directory of your application. If they are there (and you know you don’t use them) then try removing them and accessing a page that requires authentication.