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jqueryasp.net-mvc-3jquery-chosenclient-side-validation

How to implement client side validation in MVC with chosen.js

I am using chosen.js for multiple selection, implemented with asp.net mvc3. Client side validation is not working this multi select control.

The way I implement is, using Html.Dropdownlist helper and once the dom loaded from JavaScript $("#dropdown1").chosen().

It is replacing the Select with div's.

Below is the code

callback code

function (data) {
            $("#divnewdata").html(data);

            $("#ddlcode1").chosen({
                disable_search_threshold: 10,
                no_results_text: "Oops, nothing found!",
                disable_search: false,
            });

            $("#ddlCode1_chosen").find('.chosen-choices').removeClass('form-control').addClass('form-control');

            $("#ddlcode2").chosen({
                disable_search_threshold: 10,
                no_results_text: "Oops, nothing found!",
                disable_search: false,
            });

            $("#ddlcode2_chosen").find('.chosen-choices').removeClass('form-control').addClass('form-control');

            $.validator.setDefaults({
                ignore: []
            });

        }

Loading java scripts from layout page

<head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>@ViewBag.Title - My ASP.NET Application</title>
    @Styles.Render("~/Content/css")
    @Scripts.Render("~/bundles/modernizr")
    @Scripts.Render("~/bundles/jquery")
    @Scripts.Render("~/bundles/bootstrap")
    <script src="~/Scripts/jquery.unobtrusive-ajax.js"></script>
    <script>

            $('form').validate({
                ignore: []
            });
    </script>
    <script src="~/Scripts/Common/Common.js"></script>
</head>

partial view am trying to download

<script>
    $(document).ready(function () {
        $.validator.unobtrusive.parse("#formAddcodes");

        $.validator.setDefaults({
            ignore: []
        });
    });
</script>

<link href="~/Content/chosen.css" rel="stylesheet" />
<script src="~/Scripts/chosen.jquery.min.js"></script>
<script src="~/Scripts/Codes/Codes.js"></script>


@using (Html.BeginForm("AddCodes", "Codes", FormMethod.Post, new { id = "formAddcodes" }))
{
    @Html.AntiForgeryToken()

    <div class="form-horizontal">
        @Html.ValidationSummary(true, "", new { @class = "text-danger" })
                <div class="form-group">
            @Html.LabelFor(model => model.code1, htmlAttributes: new { @class = "col-md-2" })
            <div class="col-md-10">
                @Html.DropDownListFor(model => model.code1, Model.Code1List as SelectList, new { @class = "form-control", id = "ddlcode1", multiple = "multiple" })
                @Html.ValidationMessageFor(model => model.code1, "", new { @class = "text-danger" })
            </div>
        </div>

        <div class="form-group">
            @Html.LabelFor(model => model.code2, htmlAttributes: new { @class = "col-md-2" })
            <div class="col-md-10">
                @Html.DropDownListFor(m => m.code2, Model.code2List as SelectList, new { @class = "form-control", id = "ddlcode2", multiple = "multiple" })
                @Html.ValidationMessageFor(model => model.code2, "", new { @class = "text-danger" })
            </div>
        </div>


        <div class="form-group">
            <div class="col-md-offset-2 col-md-10">
                <input type="submit" value="Add" class="btn btn-primary" />
            </div>
        </div>
    </div>
}
Solution

  • chosen updates the html by making the original <select> element hidden and hidden elements are ignored by default. You can modify this behavior using either the following scripts

    $.validator.setDefaults({ 
    ignore: []
});

    or

    $('form').validate({
    ignore: []
});