="Password"> </div> <div class="form-group form-check"> <input type="checkbox" class="form-check-input" id="exampleCheck1"> <label class="form-check-label" for="exampleCheck1">Check me out</label> </div> <button type="submit" class="btn btn-primary">Submit</button> </form>...
You can also add a .valid-feedback or .invalid-feedback message to tell the user explicitly what's missing, or needs to be done before submitting the form.Example In this example, we use .was-validated to indicate what's missing before submitting the form: <form action="/action_page....
Provide valuable, actionable feedback to your users with HTML5 form validation, via browser default behaviors or custom styles and JavaScript.
Password1"> </div> <div class="form-group form-check"> <input type="checkbox" class="form-check-input" id="exampleCheck1"> <label class="form-check-label" for="exampleCheck1">Check me out</label> </div> <button type="submit" class="btn btn-primary">Submit</button> </form>...
<div class="mb-3"> <label for="validationTextarea" class="form-label">Textarea</label> <textarea class="form-control is-invalid" id="validationTextarea" placeholder="Required example textarea" required></textarea> <div class="invalid-feedback"> Please enter a message in the textarea. ...
Example In this example, we use.needs-validation, which will add the validation effect AFTER the form has been submitting (if there's anything missing). Note that you will also have to add some jQuery code for this example to work properly: ...
<inputtype="email"class="form-control"id="exampleInputEmail1" placeholder="Enter email" data-bv-notemptydata-bv-notempty-message="验证码不能为空" > </div> 上面这个例子中,第一个表单元素添加了name属性,第二个表单元素没有name属性,而这两个表单元素都使用了非空验证,最终效果如下: ...
Field Validation If a field is invalid, you can clearly communicate this to your user by making the entire field (border and text) red. To do this: Add the class.has-errorto the.form-groupdiv Optional: Create a<p>with the class.help-textto explain the problem ...
一、表单校验 二、代码实例 1、自定义样式(Custom styles) <form class="row g-3 needs-validation" novalidate> <div class="col-md-4"> <lab
Example bb.7 What is your name? Cancel OK Requires Bootstrap 3.1.0 or newer. Please note: Prompt requires the title option (when using the options object). You may use the message option, but the prompt result will not include any form values from your message. Prompt Dialog Opti...