使用bootstrap后他由他自带的样式has-error,想要使用它就会比较麻烦,往常使用jquery.validate的话只有使用他自己的样式了,而且有模型在使用模型验证更方便点。怎么解决呢?
当然你可以专门写一个针对此的jquery插件,我觉得蛮麻烦的,喜欢写插件的研究下吧。
首先Nuget获取一个 MVC EditorTemplates for Bootstrap 3 的组件,有了他以后就有了一些模版,比如比较简单的一个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>
这样子以后在使用EditorFor后就会直接输出bootstrap需要的html,比较方便。
我们看到里面已经有了验证失败的has-error的处理,第二个问题来了,我们需要前端验证,ajax验证也行啊,还有自定义验证呢?
于是乎继续利用MVC自带的模型验证,刚才获取的组件中有个Validation类,我们先在里面添加一个扩展方法用于非强类型
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">所在部门</label> <div class="controls"> <span id="deptname"> </span><a id="btnSelectDepartment">选择部门</a> <input class="form-control" data-val="true" data-val-required="部门是必需的。" id="DepartmentId" name="DepartmentId" type="hidden" value=""> @Html.ValidationMessage("Department", null, new { @class = "help-block" }) </div> </div>
最后在脚本中处理ajax提交和回发的处理,不知道用MVC的Ajax.BeginForm能不能更方便点,不过个人觉得这东西不是很灵活,所以继续用ajaxSubmit及jquery.ajax:
//ready var $divuserform = $("#divuserform"); $divuserform.dialog({ title: '新建用户',//..... }); $("#btnCreateUser").click(function () { var nodes = zTreeObjleft.getSelectedNodes(); if (nodes.length > 0) { CreateUserForm($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) { var $divuserform = 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(); }); }
后台Action方法中我们便可为其补充自定义验证:
if (!DepartmentId.HasValue) { ModelState.AddModelError("Department", "必须选择部门"); } 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);
大致效果:
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