当ASP.NET MVC模型验证遇上CKEditor
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Part 1 使用ValidationAttribute进行验证
模型字段的属性设置就不说了,所有字段均不为空,测试Company代码如下:
public class Company
{
public Guid CompanyID { get; set; }
[Display(Name = "公司名")]
[Required(ErrorMessage = "公司名称不能为空")]
public string CompanyName { get; set; }
[Display(Name = "公司地址")]
[Required(ErrorMessage = "公司地址不能为空")]
public string CompanyAddress { get; set; }
[Display(Name = "公司简介")]
[Required(ErrorMessage = "公司简介不能为空")]
public string CompanyProfile { get; set; }
public static List<Company> Companies = new List<Company>() {
new Company{CompanyID=new Guid("{CC1088BC-EF53-45C0-8D95-54F7665834C0}") ,CompanyName="百度",CompanyAddress="北京市海淀区上地十街10号",CompanyProfile="百度"},
new Company{CompanyID=new Guid("{6DC7545F-CA7C-49E8-B88E-447F43CBA7AE}") ,CompanyName="腾讯",CompanyAddress="中国广东省深圳市南山区深南大道10000号腾讯大厦",CompanyProfile="腾讯"},
new Company{CompanyID=new Guid("{EFA27D91-44CE-477E-8B19-BB6A1A785EC1}"), CompanyName="阿里巴巴",CompanyAddress="杭州市滨江区网商路699号",CompanyProfile="阿里"}
};
}
Add.cshtml代码如下:
@model Laibxw.Models.Company
@{
ViewBag.Title = "CompanyAdd";
Layout = null;
}
<h4></h4>
@using (Html.BeginForm("Add", "Test", FormMethod.Post, new { @class = "form-horizontal", role = "form", id = "add" }))
{
@Html.AntiForgeryToken()
<p class="form-horizontal">
@*@Html.ValidationSummary(true)*@
<p class="form-group">
@Html.LabelFor(model => model.CompanyName, new { @class = "control-label col-md-2" })
<p class="col-md-10" style="margin-top:5px;">
@Html.TextBoxFor(model => model.CompanyName)
@Html.ValidationMessageFor(model => model.CompanyName)
</p>
</p>
<p class="form-group">
@Html.LabelFor(model => model.CompanyAddress, new { @class = "control-label col-md-2" })
<p class="col-md-10" style="margin-top:5px;">
@Html.TextBoxFor(model => model.CompanyAddress)
@Html.ValidationMessageFor(model => model.CompanyAddress)
</p>
</p>
<p class="form-group">
@Html.LabelFor(model => model.CompanyProfile, new { @class = "control-label col-md-2" })
<p class="col-md-10" style="margin-top:5px;">
@Html.TextAreaFor(model => model.CompanyProfile, new { @class = "ckeditor" })
@Html.ValidationMessageFor(model => model.CompanyProfile)
</p>
</p>
<p class="form-group">
<p class="col-md-offset-2 col-md-10">
<input type="submit" value="提交" class="btn btn-default" />
</p>
</p>
</p>
}
<style>
.error {
color: #b94a48;
font-weight: inherit;
}
</style>
<script src="~/Scripts/jquery.validate.js"></script>
<script type="text/javascript">
$(document).ready(function () {
$("#add").submit(function () {
var _this = $(this);
$.post(_this.attr('action'), _this.serialize(), function (data) {
if (data.error == "0") {
location.href = "/Test/Index";
} else {
$('#tab2').html(data) //3.出来样式改变了
}
});
return false;
});
});
</script>
后台Controller如下:
public class TestController : Controller
{
//
// GET: /Test/
public ActionResult Index()
{
return View();
}
public ActionResult Companies()
{
var companies = Company.Companies;
return View(companies);
}
public ActionResult Add()
{
return View();
}
[HttpPost]
public ActionResult Add(Company model)
{
if (!ModelState.IsValid) return PartialView(model);
model.CompanyID = new Guid("{F419EC35-F070-491C-B38D-73FC4A24F253}");
Company.Companies.Add(model);
return Json(new { error = 0 });
}
}
运行示例添加一个Company:
发现果真无法验证,而且由于使用了部分视图,CKEditor被还原成了默认的textarea。有点糟糕!
Part 2 使用ValidationAttribute进行验证
那么使用jQuery Validate呢?于是添加了jq脚本:
<script src="~/Scripts/jquery.validate.js"></script>
<script type="text/javascript">
$(document).ready(function () {
$("#add").submit(function () {
var _this = $(this);
if (validater.form()) { //验证成功
$.post(_this.attr('action'), _this.serialize(), function (data) {
if (data.error == "0") {
location.href = "/Test/Index";
} else {
$('#tab2').html(data) //3.出来样式改变了
}
});
}
return false;
});
//验证
var validater = $("#add").validate({ //1.解决所谓的jquery.validate.js失效的说法
rules: {
CompanyName: {
required: true,
},
CompanyAddress: {
required: true,
},
CompanyProfile: {
required: true,
}
},
messages: {
CompanyName: {
required: "公司名称不能为空",
},
CompanyAddress: {
required: "公司地址不能为空",
},
CompanyProfile: {
required: "公司简介不能为空",
}
}
});
});
</script>
复制代码
运行效果和上面的是一样的。
那么之所以出现这个状况,其实是由于CKEditor没有及时将用户输入更新到相应的textarea。如果你测试会发现,当你第二次提交表单的时候,是可以获取获取到值的。那么解决这个问题的办法是这个样子的,当提交表单之前的时候及时更新textarea的值:
//先更新textarea值
for (instance in CKEDITOR.instances)
CKEDITOR.instances[instance].updateElement();
但是上面的代码只是解决了,后端验证的问题,使用jQuery.validate任然没有效果(网上看了很多解决办法,貌似只看到一个回到是对的),解决办法是在客户端验证的时候加上ignore: '':
另外,当使用纯后端验证的时候,CKEditor会被“打回原形”。解决的办法是在验证不通过返回部分视图之后加上这么一句:
$('textarea.ckeditor').each(function () {
var $textarea = $(this);
CKEDITOR.replace($textarea.attr("id"))
});
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