MVC遇上bootstrap後的ajax表單驗證
使用bootstrap後他由他自帶的樣式has-error,想要使用它就會比較麻煩,往常使用jqueyr.validate的話隻有使用他自己的樣式了,而且有模型在使用模型驗證更友善點。怎麼解決呢?
當然你可以專門寫一個針對此的jquery插件,我覺得蠻麻煩的,喜歡寫插件的研究下吧。
首先Nuget擷取一個 MVC EditorTemplates for Bootstrap 3 的元件,有了他以後就有了一些模版,比如比較簡單的一個Text:
@model object
<div class="form-group@(Html.ValidationErrorFor(m => m, " has-error"))">
@Html.LabelFor(m => m, new { @class = "control-label" })
<div class="controls">
@Html.TextBox(
"",
ViewData.TemplateInfo.FormattedModelValue,
ViewBag.ClearTextField == true ? new { @class = "form-control clear-text-field input-block-level" } : new { @class = "form-control input-block-level" } )
@Html.ValidationMessageFor(m => m, null, new { @class = "help-block" })
</div>
</div>
這樣子以後在使用EditorFor後就會直接輸出bootstrap需要的html,比較友善。
我們看到裡面已經有了驗證失敗的has-error的處理,第二個問題來了,我們需要前端驗證,ajax驗證也行啊,還有自定義驗證呢?
于是乎繼續利用MVC自帶的模型驗證,剛才擷取的元件中有個Validation類,我們先在裡面添加一個擴充方法用于非強類型
public static MvcHtmlString ValidationError(this HtmlHelper htmlHelper, string field, string error)
{
if (HasError(htmlHelper, ModelMetadata.FromStringExpression(field, htmlHelper.ViewData), field))
return new MvcHtmlString(error);
else
return null;
}
View中即可添加:
<div class="form-group@(Html.ValidationError("Department", " has-error"))">
<label class="control-label" for="DepartmentId">所在部門</label>
<div class="controls">
<span id="deptname"> </span><a id="btnSelectDepartment">選擇部門</a>
<input class="form-control" data-val="true" data-val-required="部門是必需的。" id="DepartmentId" name="DepartmentId" type="hidden" value="">
@Html.ValidationMessage("Department", null, new { @class = "help-block" })
</div>
</div>
最後在腳本中處理ajax送出和回發的處理,不知道用MVC的Ajax.BeginForm能不能更友善點,不過個人覺得這東西不是很靈活,是以繼續用ajaxSubmit及jquery.ajax:
//ready
var $divuserform = $("#divuserform");
$divuserform.dialog({
title: '建立使用者',//.....
});
$("#btnCreateUser").click(function () {
var nodes = zTreeObjleft.getSelectedNodes();
if (nodes.length > 0) {
CreateUserForm($divuserform);
}
})
function CreateUserForm(form) {
var $divuserform = form;
$.ajax({
url: "CreateUser",
success: function (html) {
CreateUserFormSuccessCallback(html, $divuserform);
function InitSelectDepartmentWhenCreateUser() {
$("#btnSelectDepartment").departmentSelection({
onSelected: function (name, id) {
$("#deptname").text(name);
$("#DepartmentId").val(id);
function CreateUserFormSuccessCallback(html, form) {
$divuserform.children().children().html(html);
$("#divuserform").dialog("open");
var $form = $divuserform.find("form")
InitSelectDepartmentWhenCreateUser();
$form.submit(function () {
$form.ajaxSubmit(function (data) {
if (data == "success") {
$("#divuserform").dialog("close");
$("#divuserform").clearForm();
}
else {
CreateUserFormSuccessCallback(data, form);
});
event.preventDefault();
背景Action方法中我們便可為其補充自定義驗證:
if (!DepartmentId.HasValue)
{
ModelState.AddModelError("Department", "必須選擇部門");
}
if (ModelState.IsValid)
user.Id = Guid.NewGuid();
user.CreateTime = DateTime.Now;
if (DepartmentId.HasValue)
{
var dept = new DeptUserRole();
dept.DepartmentId = DepartmentId.Value;
dept.IsMain = true;
dept.RoleId = RoleId.Value;
user.DeptUserRoles.Add(dept);
db.Users.Add(user);
await db.SaveChangesAsync();
return Content("success");
return View(user);
大緻效果: