如何使用html.ValidationMessageFor [英] How to use html.ValidationMessageFor

问题描述

我试图让我的看法，如果用户输入无效的东西（比如它的预期数字的字符串）给我的错误信息旁边的文本框。相反，我得到一个丑陋的错误页面，指出验证失败当用户presses提交。

I'm trying to get my view to give me the error message next to the text box if a user enters something invalid (like a string where it's expecting a number). Instead, I'm getting an ugly error page saying validation failed when the user presses submit.

下面是我的看法的一部分：

Here is a portion of my view:

@model MembershipTest.ViewModels.AddDriverViewModel

<script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>

@{
Layout = "~/Views/Shared/_Layout.cshtml";
ViewBag.Title = "Add Drivers";
}

@using (Html.BeginForm("AddDriver", "Driver"))
{
@Html.AntiForgeryToken()
@Html.ValidationSummary(true)

<fieldset>
<legend>Customer Information</legend>
 <table>
     <tr>
         <td>
             @Html.Label("First Name:")
             @Html.TextBoxFor(m => m.Driver.F_Name)
             @Html.ValidationMessageFor(m => m.Driver.F_Name)
         </td>
         <td>
             @Html.Label("Gender:")

             @Html.RadioButtonFor(m => m.isMaleChecked, "true") Male
             @Html.RadioButtonFor(m => m.isMaleChecked, "false")Female
         </td>
     </tr>
     <tr>
         <td>
             @Html.Label("Last Name:")
             @Html.TextBoxFor(m => m.Driver.L_Name)
             @Html.ValidationMessageFor(m => m.Driver.L_Name)
         </td>

和这里是我的模型的相关部分：

And here is the relevant portion of my model:

[Required]
[StringLength(30)]
public string F_Name { get; set; }

[Required]
[StringLength(30)]
public string L_Name { get; set; }

在我的控制器的方法后，我一定要使用

In the post method of my controller, I make sure to use

if (ModelState.IsValid)

如果用户发生在名字文本框输入像长50个字符，我想用Html.ValidationMessageFor（显示错误），权当他们标签指出，文本框，这样他们就可以看到它他们之前$ $ p PSS提交。我缺少一些jQuery做到这一点？也许有些using语句我需要包括哪些内容？

If the user happened to enter something like 50 characters long in the first name text box, I want an error to be displayed using the Html.ValidationMessageFor() right when they tab out of that text box, so they can see it before they press submit. Am I missing some jquery to make this happen? Maybe some using statement I need to include?

推荐答案

这是愚蠢的简单.....我只是没了的ErrorMessage字段添加为[必填]装饰的一部分。例如：

It was silly simple.....I just didn't add the ErrorMessage field as part of the [Required] decorator. For example:

[Required(ErrorMessage = "First name is required")]
[StringLength(30, ErrorMessage = "Name can be no larger than 30 characters")]
public string F_Name { get; set; }

[Required(ErrorMessage = "Last name is required")]
[StringLength(30, ErrorMessage = "Name can be no larger than 30 characters")]
public string L_Name { get; set; }

现在，如果用户要么不中的名称字段输入任何内容，或者进入一些超过30个字符，邮政法没有得到执行，用户变得有点消息，告诉他们什么是错的。

Now, if a user either doesn't enter anything in the name fields, or enters something over 30 characters, the Post method doesn't get executed and the user gets a little message telling them what's wrong.

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