使用 Chosen jquery 后，不会收到 @Html.DropDownListFor() 的验证消息 [英] Not getting validation message for @Html.DropDownListFor() once Chosen jquery is used

问题描述

代码如下:
如果我没有在组合框中选择任何值并按提交，则不会询问验证消息.

Code is given below:
If i do not select any value in the combobox and press submit, no validation message is asked.

<tr>
            <td>Department </td>
            <td> : </td>
            <td class="@*@Model.NoEdit*@">    
                @Html.DropDownListFor(m => m.DepartmentId, new SelectList(Model.Departments, "SelectedDepartmentId", "DepartmentCode"), "-- Select Department--", new {@class = "chosen-select", id = "cboDeptartment" })
                @Html.ValidationMessageFor(model => model.DepartmentId)
            </td>

推荐答案

重申我的简短评论作为答案.:-)

Restating my brief comment as an answer. :-)

为了获取验证消息，我使用了 Joseph 提到的相同方法，但我对那些与 Chosen 一起使用的选择使用了 HTML 类.例如:

To get the validation messages, I use the same approach Joseph mentions, though I use an HTML class for those selects that I am using with Chosen. For example:

validator.settings.ignore = ":hidden:not(.select-chosen)";

要在选择值时清除验证消息，您需要为更改"事件附加一个事件侦听器，并明确强制重新验证选择.例如，假设您有一个引用选择框的变量 select:

To clear the validation message when a value is selected, you need to attach an event listener for "change" events and explicitly force revalidation of the select. So for example, assuming you have a variable select that references the select box:

select.on("change", function(evt, params) {
    $(evt.target).valid();
});

Chosen 的值发生变化时会触发这些更改"事件.

Chosen triggers those "change" events whenever it's value changes.

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