I know what the jQuery Validation plugin is. I know the jQuery Unobtrusive Validation library was made by Microsoft and is included in the ASP.NET MVC framework. But I cannot find a single online source that explains what it is. What is the difference between the standard jQuery Validation library and the "unobtrusive" version?
Brad Wilson has a couple great articles on unobtrusive validation and unobtrusive ajax.
It is also shown very nicely in this Pluralsight video in the section on " AJAX and JavaScript".
Basically, it is simply Javascript validation that doesn't pollute your source code with its own validation code. This is done by making use of data-
attributes in HTML.
用不显眼的方式:
- 您不必调用validate()方法。
- 您可以使用数据属性(data-val,data-val-required等)指定需求
jQuery验证示例:
<input type="text" name="email" class="required">
<script>
$(function () {
$("form").validate();
});
</script>
jQuery验证不干扰示例:
<input type="text" name="email" data-val="true"
data-val-required="This field is required.">
<div class="validation-summary-valid" data-valmsg-summary="true">
<ul><li style="display:none"></li></ul>
</div>
为了澄清起见,这是一个更详细的示例,演示使用jQuery Validation Unobtrusive进行表单验证。
两者都将以下JavaScript与jQuery结合使用:
$("#commentForm").validate({
submitHandler: function(form) {
// some other code
// maybe disabling submit button
// then:
alert("This is a valid form!");
// form.submit();
}
});
两个插件之间的主要区别是每种方法使用的属性。
jQuery验证
只需使用以下属性:
- 必要时设定
- 设置类型以正确格式化(电子邮件等)
- 设置其他属性,例如大小(最小长度等)
这是表格...
<form id="commentForm">
<label for="form-name">Name (required, at least 2 characters)</label>
<input id="form-name" type="text" name="form-name" class="form-control" minlength="2" required>
<input type="submit" value="Submit">
</form>
jQuery验证不引人注目
需要以下数据属性:
- data-msg-required =“这是必需的。”
- data-rule-required =“ true / false”
这是表格...
<form id="commentForm">
<label for="form-x-name">Name (required, at least 2 characters)</label>
<input id="form-x-name" type="text" name="name" minlength="2" class="form-control" data-msg-required="Name is required." data-rule-required="true">
<input type="submit" value="Submit">
</form>
根据这些示例中的任何一个,如果已填写所需的表单字段,并且它们满足其他属性条件,则将弹出一条消息,通知所有表单字段均已验证。否则,在令人讨厌的表单字段附近将出现表明错误的文本。
参考:-jQuery验证:https://jqueryvalidation.org/documentation/
jQuery Validation Unobtrusive Native is a collection of ASP.Net MVC HTML helper extensions.
These make use of jQuery Validation's native support for validation driven by HTML 5 data attributes.
Microsoft shipped jquery.validate.unobtrusive.js back with MVC 3.
It provided a way to apply data model validations to the client side using a combination of jQuery Validation and HTML 5 data attributes
(that's the "unobtrusive" part).
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