c# - MVC ValidationMessageFor无法正常工作

我认为以下内容:

     <fieldset>
        <legend>User Registration</legend>
        <div class="editor-label">
            @Html.LabelFor(m => m.UsrName)
        </div>
        <div class="editor-field">
            @Html.TextBoxFor(m => m.UsrName)
            @Html.ValidationMessageFor(m => m.UsrName)
        </div>
        <div class="editor-label">
            @Html.LabelFor(m => m.Pwd)
        </div>
        <div class="editor-field">
            @Html.PasswordFor(m => m.Pwd)
            @Html.ValidationMessageFor(m => m.Pwd)
        </div>
        <div class="editor-label">
            @Html.LabelFor(m => m.ReEnterPwd)
        </div>
        <div class="editor-field">
            @Html.PasswordFor(m => m.ReEnterPwd)
            @Html.ValidationMessageFor(m => m.ReEnterPwd)
        </div>
       <fieldset>
         <legend>Location</legend>
           <span id="locationDiv">
           @Html.RadioButtonFor(m => m.Location, "Loc1")  @Html.Label("Loc1")
           &nbsp;&nbsp;
           </span>
           @Html.RadioButtonFor(m => m.Location, "Loc2") @Html.Label("Loc2")
           @Html.ValidationMessageFor(m => m.Location)
        </fieldset>

         <fieldset>
         <legend>Role</legend>
            @Html.RadioButtonFor(m => m.Role, "User") @Html.Label("User")
           &nbsp;&nbsp; @Html.RadioButtonFor(m => m.Role, "Admin") @Html.Label("Admin")
            @Html.ValidationMessageFor(m => m.Role)
         </fieldset>

        <p>
            <input type="submit" value="Register User" />
        </p>
    </fieldset>

即使我没有填写所有字段，即使它们都是必需的，它仍将交给 Controller 。我想

    @Html.ValidationMessageFor

本来可以防止这种情况的发生。

    [Required]
    public string Location { get; set; }

    [Required]
    public string Role { get; set; }

    [Required]
    [Display(Name = "User Name")]
    public string UsrName { get; set; }

    [Required]
    [StringLength(50, MinimumLength = 5, ErrorMessage = "Must have a minimum length of 5.")]
    public string Pwd { get; set; }

    [Required]
    [Display(Name = "Re-enter Password")]
    [StringLength(50, MinimumLength = 5, ErrorMessage = "Must have a minimum length of 5.")]
    [Compare("Pwd", ErrorMessage = "The password and re-entered password do not match.")]
    public string ReEnterPwd { get; set; }

最佳答案

您必须在 View 中包括以下脚本:

<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>

关于c# - MVC ValidationMessageFor无法正常工作，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/14488737/