You could subscribe to the .change() event of the dropdown and then trigger an AJAX request: <script type=”text/javascript”> $(function() { $(‘#meters’).change(function() { var meterId = $(this).val(); if (meterId && meterId != ”) { $.ajax({ url: ‘@Url.Action(“MeterInfoPartial”)’, type: ‘GET’, cache: false, data: { meter_id: meterId } }).done(function(result) { $(‘#container’).html(result); }); } }); }); </script> and then … Read more
The last argument of the SelectList constructor (in which you hope to be able to pass the selected value id) is ignored because the DropDownListFor helper uses the lambda expression you passed as first argument and uses the value of the specific property. So here’s the ugly way to do that: Model: public class MyModel … Read more
If you don’t want jquery then you can do it with javascript :- @Html.DropDownList(“Sortby”, new SelectListItem[] { new SelectListItem() { Text = “Newest to Oldest”, Value = “0” }, new SelectListItem() { Text = “Oldest to Newest”, Value = “1” }}, new { @onchange=”callChangefunc(this.value)” }); <script> function callChangefunc(val){ window.location.href = “https://stackoverflow.com/Controller/ActionMethod?value=” + val; } </script>
jQuery Chosen updates the html by making the original select hidden (style=”Display:none”). By default jquery.validate (1.9.0) ignores hidden elements. You can override the default using $.validator.setDefaults({ ignore: [] }); or $(‘form’).validate({ ignore: [] });
The strongly typed view model approach which does not use dynamic stuff like ViewBag You can add a new property to your view model for the SELECT options of type IEnumrable<SelectListItem>. view model is a simple POCO class used to transfer data between view to action method and vice versa. They are specific to the … Read more
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
Don’t pass db models directly to your views. You’re lucky enough to be using MVC, so encapsulate using view models. Create a view model class like this: public class EmployeeAddViewModel { public Employee employee { get; set; } public Dictionary<int, string> staffTypes { get; set; } // really? a 1-to-many for genders public Dictionary<int, string> … Read more
You should do like this: @Html.DropDownListFor(m => m.ContribType, new SelectList(Model.ContribTypeOptions, “ContribId”, “Value”)) Where: m => m.ContribType is a property where the result value will be.
You can separate out your business logic into a viewmodel, so your view has cleaner separation. First create a viewmodel to store the Id the user will select along with a list of items that will appear in the DropDown. ViewModel: public class UserRoleViewModel { // Display Attribute will appear in the Html.LabelFor [Display(Name = … Read more
See this MSDN article and an example usage here on Stack Overflow. Let’s say that you have the following Linq/POCO class: public class Color { public int ColorId { get; set; } public string Name { get; set; } } And let’s say that you have the following model: public class PageModel { public int … Read more