我有一个Razor视图,使用HTML帮助器和其他人使用jQuery DataTable,
呈现一些下降<div class="form-group">
@Html.LabelFor(model => model.CarTyres, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-2">
@Html.ListBoxFor(model => model.SelectedCarTyres, Model.CarTyres, htmlAttributes: new { @class = "selectpicker form-control", @multiple = "", @data_actions_box = "true" })
@Html.ValidationMessageFor(model => model.SelectedCarTyres, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Drivers, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-2">
@Html.ListBoxFor(model => model.SelectedDrivers, Model.Drivers, htmlAttributes: new { @class = "selectpicker form-control", @multiple = "", @data_actions_box = "true" })
@Html.ValidationMessageFor(model => model.SelectedDrivers, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.CarJacks, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-5">
<table id="filtersTable">
<thead>
<tr>
<th>Select</th>
<th>Name</th>
</tr>
</thead>
</table>
</div>
@Html.ValidationMessageFor(model => model.CarJacksCheckBox, "", new { @class = "text-danger" })
</div>
在我的模型中,我将required设置为true,这样当我检查时Model.IsValid()
将返回false,如果没有设置任何这些项,那就可以了。
public class ReportViewModel
{
public DateTime StartTime { get; set; }
public DateTime EndTime { get; set; }
[Required]
public ICollection<int> SelectedCarTyres { get; set; }
public IEnumerable<SelectListItem> CarTyres { get; set; }
[Required]
public ICollection<int> SelectedDrivers { get; set; }
public IEnumerable<SelectListItem> Drivers { get; set; }
public IEnumerable<CarJackViewModel> CarJacks { get; set; }
[Required]
public string SelectedSampleTime { get; set; }
public IEnumerable<SelectListItem> SampleTimes { get; set; }
[Required]
public IEnumerable<int> CarJacksCheckBox { get; set; }
}
为了使javascrip数据表成为必需,我在复选框上复制了vallidation属性,如下所示:
$('#filtersTable').DataTable(
{
"iDisplayLength": 25,
"ajax": {
"url": "/CarJacks/Loaddata",
"type": "GET",
"datatype": "json"
},
"columns": [
{
"data": "IsSelected",
"render": function (data, type, row) {
if (type === 'display') {
return '<input type="checkbox" name="CarJacksCheckBox" class="editor-active" data-val="true" data-val-required="The CarJacks field is required.">';
}
return data;
}
],
"rowCallback": function (row, data) {
//Removed for Brevity
}
}
);
但是,当没有选择任何CarJackCheckBox时,我没有得到任何客户端验证。
虽然(ModelState.IsValid)
返回false,但$(form).valid()
返回true,因此客户端没有错误。
我错过了哪一件?
答案 0 :(得分:2)
您不能使用MVC的客户端验证,因为验证规则应用于表单控件,而您不能(也不能)为IEnumerable<int> CarJacksCheckBox
属性创建表单控件。您需要编写自己的脚本来验证是否至少需要一个复选框。
从复选框中删除data-val-*
属性(因为它们毫无意义)并添加一个额外的类名,比如说carjacks
在脚本中用作jQuery选择器。
然后包括以下脚本(注意这些模仿'懒惰'验证 - 它首先在提交时验证,然后在单击复选框时验证)
var validateOnClick = false; // for lazy validation
var requiredCarJacks = 1;
var carJacks= $('.carjacks');
var errorMessage = 'Select at least 1 car jack';
var errorElement = $('span[data-valmsg-for="CarJacksCheckBox"]');
function validateCarJacks() {
var selectedCarJacks = carJacks.filter(':checked').length;
var isValid = selectedCarJacks > requiredCarJacks ;
if (!isValid) {
errorElement.addClass('field-validation-error').removeClass('field-validation-valid').text(errorMessage);
} else {
errorElement.addClass('field-validation-valid').removeClass('field-validation-error').text('');
}
return (isValid);
}
$('form').submit(function () {
if (!validateCarJacks()) {
validateOnClick = true; // signal that we should now validate the .click() event
return false; // prevent submit
}
});
carJacks.click(function() {
if (validateOnClick) {
validateCarJacks();
}
})
答案 1 :(得分:0)
初始化jQuery DataTable后必须添加一行。
$.validator.unobtrusive.parse('form')
此外,您可以使用jQuery Selector
$.validator.unobtrusive.parse('#formTable')