<form class="user" action="code_user.php" method="POST">
<div class="form-group">
<label>Enter Full Name</label>
<input class="form-control" pattern="^[a-zA-Z]+(( )+[a-zA-z]+)*$" oninvalid="setCustomValidity('Please enter in alphabets only. ')" type="text" name="name" autocomplete="off" required />
</div>
<button type="submit" id="submit"name="signup_btn"class="btn btn-primary btn-user btn-block"> Sign Up </button>
</form>
在HTML输入验证中,我仅设置了字母拼写的模式。使用数字输入进行测试时,显示
我必须再次刷新页面以输入正确的格式,只是它不会显示 无效。这正常吗? 这是我的代码:
<div class="form-group">
<label>Enter Full Name</label>
<input class="form-control" pattern="^[a-zA-Z]+(( )+[a-zA-z]+)*$" oninvalid="setCustomValidity('Please enter in alphabets only. ')" type="text" name="name" autocomplete="off" required />
</div>
答案 0 :(得分:1)
您不会清除setCustomValidity()
。如果使用setCustomValidity()
设置值,则该字段无效。只需将此类属性添加到您的输入标签即可:
oninput="setCustomValidity('')"
已修正您的代码:
<form class="user" action="code_user.php" method="POST">
<div class="form-group">
<label>Enter Full Name</label>
<input class="form-control" pattern="^[a-zA-Z]+(( )+[a-zA-z]+)*$" oninvalid="setCustomValidity('Please enter in alphabets only. ')" oninput="setCustomValidity('')" type="text" name="name" autocomplete="off" required />
</div>
<button type="submit" id="submit"name="signup_btn"class="btn btn-primary btn-user btn-block"> Sign Up </button>
</form>