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PONot able to display error message in Dropdownlist In MVC
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  1. PONot able to display error message in Dropdownlist In MVC
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    copied!<p>I am really stuck here for a long time and I don't know why its not working. I followed this <a href="https://stackoverflow.com/questions/4729440/validate-a-dropdownlist-in-asp-net-mvc">post</a> where it explained how to implement validation in MVC. But not working for me. </p> <p>My problem is I am able to display list in drop down but it is not showing any error message when I am in default option which was supposed to display error message.</p> <p><strong>My code is show below :</strong></p> <p><strong>Model class :</strong></p> <pre><code>public class ValidationModel { public IEnumerable&lt;SelectListItem&gt; options { get; set; } [Required(ErrorMessage = "Please select atleast one mode")] public int optionselected { get; set; } } </code></pre> <p><strong>Controller :</strong></p> <pre><code>public ActionResult validation() { var validation = new ValidationModel(); validation.options = new List&lt;SelectListItem&gt;() { new SelectListItem() {Text = "Add or Update Customer", Value = "1" }, new SelectListItem() { Text = "Update Customer Credit", Value = "2"} }; return View(validation); </code></pre> <p><strong>View :</strong></p> <pre><code>@using (Html.BeginForm("Validation", "home",FormMethod.Post)) { @Html.DropDownListFor( m =&gt; m.optionselected, Model.options, "Select List") @Html.ValidationMessageFor(m =&gt; m.optionselected) &lt;input type="submit" value="OK" /&gt; } </code></pre> <p>Here by default <strong>select list</strong> option will be displayed in my drop downlist. But here I want my error message to be displayed. But it is not displaying. When user select value 1 or 2 then this error message should not display. </p> <p>I tried using Modelstate also in my controller but not working :</p> <pre><code>[HttpPost] public ActionResult Validation() { var validation = new ValidationModel(); validation.options = new List&lt;SelectListItem&gt;() { new SelectListItem() {Text = "Add or Update", Value="1"}, new SelectListItem() {Text = "Update Customer", Value="2"} }; if (!ModelState.IsValid) { return View(model); } return RedirectToAction("bill"); } </code></pre>
 

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