我有一个模态，最初里面有两个<div>个元素。但用户也可以动态添加其他<div>元素。
我想要做的是每次关闭并重新打开模态时，只显示默认的两个<div>。
我尝试了以下内容：
$('#modal').on('show.bs.modal', function () {
$(this).removeData('bs.modal');
});
没有用。
我该怎么做？
初始模态正文：
<div class="modal-body">
<div class="row" id="leg-1">
<div class="col-md-5" id="pickup-info-1">
<div class="row">
<div class="col-md-1">
<p class="split-location__leg-number">1</p>
</div>
<div class="col-md-11">
<p><span id="pickup-name-1"></span> <br/> <span id="pickup-address-1"></span> <br/> <strong><span id="pickup-city-1"></span>, <span id="pickup-state-1"></span> <span id="pickup-zip-1"></span></strong> <br/> Contact: <span id="pickup-contact-1"></span><br/> Phone: <span id="pickup-phone-1"></span></p>
<p id="pickup-date-1"></p>
</div>
</div>
</div>
<div class="col-md-7" id="delivery-info-1">
<div class="row">
<div class="col-md-10">
<form class="split-location-form">
<div class="form-group">
<input type="text" class="form-control" id="delivery-name-1" placeholder="Name" value="BusinessName">
</div>
<div class="form-group">
<input type="text" class="form-control" id="delivery-contact-1" placeholder="Contact" value="ContactName">
</div>
<div class="form-group">
<input type="text" class="form-control" id="delivery-phone-1" placeholder="Phone" value="+99893497989">
</div>
<div class="form-group">
<input type="text" class="form-control" id="delivery-address-1" placeholder="Address" value="ContactAddress">
</div>
<div class="row">
<div class="col-md-6">
<div class="form-group">
<input type="text" class="form-control" id="delivery-city-1" placeholder="City" value="ContactCity">
</div>
</div>
<div class="col-md-3">
<div class="form-group">
<select class="form-control split-location__state" id="delivery-state-1">
<option value="AL">Alabama</option>
<option value="AK">Alaska</option>
<option value="AS">American Samoa</option>
<option value="AZ">Arizona</option>
<option value="AR">Arkansas</option>
<option value="CA">California</option>
<option value="CO">Colorado</option>
<option value="CT">Connecticut</option>
<option value="DE">Delaware</option>
<option value="DC">District Of Columbia</option>
<option value="FM">Federated States Of Micronesia</option>
<option value="FL">Florida</option>
<option value="GA">Georgia</option>
<option value="GU">Guam</option>
<option value="HI">Hawaii</option>
<option value="ID">Idaho</option>
<option value="IL">Illinois</option>
<option value="IN">Indiana</option>
<option value="IA">Iowa</option>
<option value="KS">Kansas</option>
<option value="KY">Kentucky</option>
<option value="LA">Louisiana</option>
<option value="ME">Maine</option>
<option value="MH">Marshall Islands</option>
<option value="MD">Maryland</option>
<option value="MA">Massachusetts</option>
<option value="MI">Michigan</option>
<option value="MN">Minnesota</option>
<option value="MS">Mississippi</option>
<option value="MO">Missouri</option>
<option value="MT">Montana</option>
<option value="NE">Nebraska</option>
<option value="NV'">Nevada</option>
<option value="NH">New Hampshire</option>
<option value="NJ">New Jersey</option>
<option value="NM">New Mexico</option>
<option value="NY">New York</option>
<option value="NC'">North Carolina</option>
<option value="ND">North Dakota</option>
<option value="MP">Northern Mariana Islands</option>
<option value="OH">Ohio</option>
<option value="OK">Oklahoma</option>
<option value="OR">Oregon</option>
<option value="PW">Palau</option>
<option value="PA">Pennsylvania</option>
<option value="PR">Puerto Rico</option>
<option value="RI">Rhode Island</option>
<option value="SC">South Carolina</option>
<option value="SD">South Dakota</option>
<option value="TN">Tennessee</option>
<option value="TX">Texas</option>
<option value="UT">Utah</option>
<option value="VT">Vermont</option>
<option value="VI">Virgin Islands</option>
<option value="VA">Virginia</option>
<option value="WA">Washington</option>
<option value="WV">West Virginia</option>
<option value="WI">Wisconsin</option>
<option value="WY">Wyoming</option>
</select>
</div>
</div>
<div class="col-md-3">
<div class="form-group">
<input type="number" class="form-control split-location__zip" id="delivery-zip-1" placeholder="ZIP" value="100189">
</div>
</div>
</div>
<div class="row">
<div class="col-md-6">
<div class="form-group">
<input type="date" class="form-control" id="delivery-date-1" placeholder="Delivery date" value="2016-10-10">
</div>
</div>
<div class="col-md-6">
<div class="form-group">
<label for="split-location-form__price">Price:</label>
<input type="number" id="delivery-price-1" class="form-control split-location-form__price" value="600">
</div>
</div>
</div>
</form>
</div>
<div class="col-md-2">
<button type="button" class="btn btn-default btn-sm split-location__delete-leg-btn" title="Delete this leg" data-id="1" id="delete-btn-1">Delete</button>
</div>
</div>
</div>
</div>
<hr/>
<div class="row" id="leg-2">
<div class="col-md-5" id="pickup-info-2">
<div class="row">
<div class="col-md-1">
<p class="split-location__leg-number">2</p>
</div>
<div class="col-md-11" id="pickup-info-exists-2">
<p><span id="pickup-name-2"></span> <br/> <span id="pickup-address-2"></span> <br/> <strong><span id="pickup-city-2"></span>, <span id="pickup-state-2"></span> <span id="pickup-zip-2"></span></strong> <br/> Contact: <span id="pickup-contact-2"></span><br/> Phone: <span id="pickup-phone-2"></span></p>
<div class="form-group">
<input type="date" id="pickup-date-2" class="form-control split-location__pickup-date">
</div>
</div>
<div class="col-md-11" id="no-pickup-info-2">
<p class="text-muted">Pickup information is <br/> not available yet</p>
<div class="form-group">
<input type="date" id="pickup-date-2" class="form-control split-location__pickup-date">
</div>
</div>
</div>
</div>
<div class="col-md-7" id="delivery-info-2">
<div class="row">
<div class="col-md-10">
<p><span id="delivery-name-2"></span><br/><span id="delivery-address-2"></span> <br/> <span id="delivery-city-2"></span>, <span id="delivery-state-2"></span> <span id="delivery-zip-2"></span><br/> Contact: <span id="delivery-contact-2"></span><br/> Phone: <span id="delivery-phone-2"></span></p>
<div class="form-group">
<p>
<span style="margin-right: 30px" id="delivery-date-2"></span> Price:
<input type="number" class="form-control split-location-form__price" id="delivery-price-2">
</p>
</div>
</div>
</div>
</div>
</div>
<hr/>
<div class="row">
<div class="col-md-12">
<button type="button" id="add-leg-btn" class="btn btn-success split-location__add-leg-btn">Add New Leg</button>
</div>
</div>
</div>
基本上，它有三个主要部分：
<div class="row" id="leg-1">
....
</div>
<hr>
<div class="row" id="leg-2">
....
</div>
<button>Add Leg</button>
前两个div是初始默认值。当用户按下Add Leg按钮时，另一个ID为leg-3的div（依此类推。）将插入到模板中。
答案 0 :(得分：3)
为添加的<div>添加一个类，即。 ” .addedDivClass'，
然后在显示模态时使用jQuery .remove()删除元素。
$('#modal').on('show.bs.modal', function () {
// Get the added divs within the modal and remove them
$('.addedDivClass', this).remove();
});
详细了解remove() here。
答案 1 :(得分：1)
尝试以下方法：
$('#modal').on('show.bs.modal', function () {
// Get the added divs within the modal and remove all except the first 2
$('div[id^="leg"]').not('#leg-1,#leg-2').remove();
});