c# - 必需的属性在 asp.net mvc 中不起作用

Question

我有一个简单的强类型 View 。

@model GoldForGold.Models.LogonModel
@{
    ViewBag.Title = "Logins";
    Layout = "~/Views/Shared/_Layout.cshtml";
}

Logins
@using (Html.BeginForm()) {

Account Information
@Html.LabelFor(m => m.UserName)
@Html.TextBoxFor(m => m.UserName, new { id = "txtUserName" })
@Html.ValidationMessageFor(m => m.UserName)
@Html.LabelFor(m => m.Password)
@Html.PasswordFor(m => m.Password, new { id = "txtPassword" })
@Html.ValidationMessageFor(m => m.Password)
@Html.CheckBoxFor(m => m.RememberMe)
@Html.LabelFor(m => m.RememberMe)

<input type="submit" value="Log On" onclick="getcredentials()" />
}

模型代码在这里。

public class LogonModel
{
    [Required(ErrorMessage="please enter username")]
    [Display(Name = "User name")]
    public string UserName { get; set; }

    [Required]
    [DataType(DataType.Password)]
    [Display(Name = "Password")]
    public string Password { get; set; }

    [Display(Name = "Remember me?")]
    public bool RememberMe { get; set; }
}

即使我不输入用户名和密码，我也看不到任何事情发生。

Answer 1

这是完整的解决方案:

1. 将以下脚本添加到您的 View 中:

   <script src='@Url.Content("~/Scripts/jquery-1.8.2.js")' type='text/javascript'></script>    
   <script src='@Url.Content("~/Scripts/jquery.validate.js")' type='text/javascript'>         </script>
   <script src='@Url.Content("~/Scripts/jquery.validate.unobtrusive.js")' type='text/javascript'></script>
   

2. 在 Web.Config 中启用验证:

   <appSettings>
   <add key="ClientValidationEnabled" value="true" />
   <add key="UnobtrusiveJavaScriptEnabled" value="true" />
   </appSettings>
   

3. 在 View 中添加验证元素:

   @Html.ValidationMessageFor(model => model.UserName)
   

4. 向模型元素添加必需的属性。

   [Required(ErrorMessage="please enter username")]
   public string UserName { get; set; }