我正在尝试在bootstrap 4模态打开时自动对焦输入元素。我尝试过http://getbootstrap.com/docs/4.0/components/modal/以下的代码,但这不起作用。
有人可以帮助我提供工作演示
$('#myModal').on('shown.bs.modal', function () {
$('#myInput').trigger('focus')
})
答案 0 :(得分:7)
尝试下面的代码段。也许你需要$(document).ready()
$(document).ready(function() {
$('#myModal').on('shown.bs.modal', function() {
$('#myInput').trigger('focus');
});
});

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet" />
<!-- Button trigger modal -->
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#myModal">
Launch demo modal
</button>
<!-- Modal -->
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
<input type="text" class="form-control" id="myInput">
</div>
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>
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