标签：future 不能 off put append href .data sheet esc
上图先看下效果
样式先不说,先了解下数据验证是怎么实现的
一 必须是强类型的视图
二 这些显示提示的话语,都在强类型的实体中
三 必须使用Html.BeginForm或者Html.AjaxBeginForm
四 提交方式必须是form的submit
上代码
@model FuturesContest.ViewModel.User.UserViewModel @{ Layout = null; } <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <!-- Meta, title, CSS, favicons, etc. --> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>期货大赛管理后台登录! | </title> <!-- Bootstrap --> <link href="~/Content/bootstrap.min.css" rel="stylesheet" /> <!-- Font Awesome --> <link href="~/Content/vendors/font-awesome/css/font-awesome.min.css" rel="stylesheet" /> <!-- NProgress --> <link href="~/Content/vendors/nprogress/nprogress.css" rel="stylesheet"> <!-- Animate.css --> <link href="~/Content/vendors/animate.css/animate.min.css" rel="stylesheet"> <!--poshytip.css--> <link href="~/Content/vendors/poshytip-1.2/src/tip-yellow/tip-yellow.css" rel="stylesheet" /> <!-- Custom Theme Style --> <link href="~/Content/Gentelella/custom.min.css" rel="stylesheet" /> </head> <body class="login"> <div> <a class="hiddenanchor" id="signup"></a> <a class="hiddenanchor" id="signin"></a> <div class="login_wrapper"> <div class="animate login_form"> <section class="login_content"> @{ Html.EnableClientValidation(); } @using (Html.BeginForm("Index", "Login", FormMethod.Post)) { <h1>期货大赛管理后台</h1> <div> @Html.TextBoxFor(m => m.Account, new {@class = "form-control", placeholder = "用户名", autocomplete="off"}) @Html.ValidationMessageFor(m => m.Account) </div> <div> @Html.PasswordFor(m => m.Password, new {@class = "form-control", placeholder = "密码", autocomplete = "off" }) @Html.ValidationMessageFor(m => m.Password) </div> <div> <a id="sub_login" class="btn btn-default submit">登 录</a> </div> <div class="clearfix"></div> } </section> </div> </div> </div> </body> </html> <script src="~/Scripts/jquery-1.9.1.min.js"></script> <script src="~/Scripts/bootstrap.min.js"></script> <script src="~/Content/vendors/poshytip-1.2/src/jquery.poshytip.min.js"></script> <script src="~/Scripts/jquery.validate.min.js"></script> <script src="~/Scripts/jquery.validate.unobtrusive.js"></script> <script src="~/Scripts/common.js"></script> <script type="text/javascript"> $("#sub_login").click(function() { $("form").submit(); }); document.onkeydown = function() { if (event.keyCode === 13) { $("form").submit(); } } </script>
@{
Html.EnableClientValidation();
}
启动客户端验证
@using (Html.BeginForm("Index", "Login", FormMethod.Post))
benginForm提交
@Html.TextBoxFor(m => m.Account, new {@class = "form-control", placeholder = "用户名", autocomplete="off"}) @Html.ValidationMessageFor(m => m.Account)
ValidationMessageFor错误信息会显示在这里
<script src="~/Scripts/jquery-1.9.1.min.js"></script> <script src="~/Scripts/bootstrap.min.js"></script> <script src="~/Content/vendors/poshytip-1.2/src/jquery.poshytip.min.js"></script> <script src="~/Scripts/jquery.validate.min.js"></script> <script src="~/Scripts/jquery.validate.unobtrusive.js"></script> <script src="~/Scripts/common.js"></script>
千万不要忘记unobtrusive.js
后台
[HttpPost] public ActionResult Index(UserViewModel user) { var model = user.ToEntity(); if (!_bll.IsRightPassword(model)) ModelState.AddModelError("Password", "密码错误或该用户被禁用"); if (!ModelState.IsValid) return View(user); //登录成功,将登录信息存入session var loginInfo = _bll.GetUserByAccount(model.Account); Session["LoginInfo"] = loginInfo; //将登录信息存储到cookies _bll.SaveCookie(loginInfo); return RedirectToAction("Index", "Back"); }
ModelState.AddModelError 可以添加一个错误信息
ModelState.IsValid 表示所有数据通过验证
在看看viewModel验证的几种类型
using System; using System.ComponentModel; using System.ComponentModel.DataAnnotations; using System.Web.Mvc; namespace FuturesContest.ViewModel.User { public class UserAddViewModel { public int Id { get; set; } [DisplayName("用户名")] [Required(ErrorMessage = "{0}不能为空")] [Remote("CheckAccount", "Back", ErrorMessage = "{0}已存在")] public string Account { get; set; } [DisplayName("密码")] [Required(ErrorMessage = "{0}不能为空")] [RegularExpression(@"^[0-9A-Za-z]{6,20}$",ErrorMessage = "{0}格式为6-20位字母或数字")] public string Password { get; set; } [DisplayName("昵称")] [Required(ErrorMessage = "{0}不能为空")] [Remote("CheckNickName", "Back", ErrorMessage = "{0}已存在")] public string NickName { get; set; } [DisplayName("有效状态")] public int IsEnabled { get; set; } [DisplayName("创建时间")] public DateTime AddTime { get; set; } [DisplayName("最后登录时间")] public DateTime LastTime { get; set; } [DisplayName("头像")] public string HeadThumb { get; set; } [DisplayName("排序")] [Required(ErrorMessage = "{0}不能为空")] [Range(0, 99, ErrorMessage="{0}取值范围为0-99")] public int OrderId { get; set; } } }
DisplayName-------------- 在用labelFor的时候,会显示后面的名称
[Required(ErrorMessage = "{0}不能为空")] ------------非空验证
[Remote("CheckAccount", "Back", ErrorMessage = "{0}已存在")] ---------Ajax验证,需要后台有一个CheckAccount的方法
[RegularExpression(@"^[0-9A-Za-z]{6,20}$",ErrorMessage = "{0}格式为6-20位字母或数字")]----------正则验证
[Range(0, 99, ErrorMessage="{0}取值范围为0-99")]------------范围验证
ajax验证的案例
//Ajax验证用户名是否存在 public JsonResult CheckAccount(string account) { var result = _bll.ExistAccount(account); return Json(result, JsonRequestBehavior.AllowGet); }
返回的一定是一个布尔值,才能知道是否通过
好啦!现在应该已经可以正常的显示数据验证的错误信息了!但样式不好看,所以我们要修改样式
我用的是poshytip插件,类似于tips的插件
引入对应的css和js
修改源码
找到jquery.validate.unobtrusive.js
找到function onError(error, inputElement)函数,稍微改改就可以 我贴个全的
function onError(error, inputElement) { // ‘this‘ is the form element var container = $(this).find("[data-valmsg-for=‘" + escapeAttributeValue(inputElement[0].name) + "‘]"), replaceAttrValue = container.attr("data-valmsg-replace"), replace = replaceAttrValue ? $.parseJSON(replaceAttrValue) !== false : null; //------为container添加tips样式 start-------- var $customErrorTip = container.attr("data-forerrortip"); //------为container添加tips样式 end---------- container.removeClass("field-validation-valid").addClass("field-validation-error"); error.data("unobtrusiveContainer", container); //-----添加提示消息 start ------- var elem = $("#" + inputElement[0].name.replace(".", "_")); //-----添加提示消息 end --------- if (replace) { container.empty(); //add start if (error.html() != "") { if ($customErrorTip) { $("#" + $customErrorTip).poshytip("destroy"); } else { elem.poshytip("destroy"); } var direction = "right"; //左边+元素宽+提示的文字+提示两边的空白 if ((elem[0].offsetLeft + elem.width() + error.length * 10 + 20) > $(document).width()) { direction = "left"; } var errorConfig = { content: error, alignTo: ‘target‘, alignX: direction, alignY: ‘center‘, showOn: ‘none‘, bgImageFrameSize: 7, offsetX: 5 }; if ($customErrorTip) { $("#" + $customErrorTip).poshytip(errorConfig).poshytip(‘show‘); } else { elem.filter(‘:not(.valid)‘).poshytip(errorConfig).poshytip(‘show‘); } } else { if ($customErrorTip) { $("#" + $customErrorTip).poshytip("destroy"); } else { elem.poshytip("destroy"); } } //add end //error.removeClass("input-validation-error").appendTo(container); } else { error.hide(); } }
这样我们就解决了通过微软的这个js进行前端验证的样式修改
注意:这种验证没有到服务器验证,只是JS拦截
但!!!!还是不够,Ajax方法的后台验证样式并不通过这个js,它是后端验证,直接返回到前端的
所以我封装了一个js,捕获返回的数据进行修改
common,js
$(function () { $(".field-validation-error").each(function () { var $this = $(this); var thisid = $this.attr("data-valmsg-for").replace(".", "_"); var direction = "right"; // 左边+元素宽+提示的文字+提示两边的空白 if (($this[0].offsetLeft + $this.width() + $this.text().length * 10 + 20) > $(document).width()) { direction = "left"; } $this.hide(); setTimeout(function () { $("#" + thisid).poshytip({ content: $this.text(), alignTo: ‘target‘, alignX: direction, alignY: ‘center‘, showOn: ‘none‘, offsetX: 5 }).poshytip(‘show‘); }, 100); }); });
到这时,我们才完成了MVC的数据验证!!!
标签：future 不能 off put append href .data sheet esc
原文地址：https://www.cnblogs.com/tanfuchao/p/9209342.html
