Question

如何在从select2中删除标签之前显示确认框？我有一个文本框，我在删除其中任何一个时选择了两个选项我想显示一条警告信息。任何人都可以帮助我吗？在HTML中我有元素

    <div class="form-group">
    <label for="name" class="col-lg-3 control-label required">Select Type</label>
    <div class="col-lg-9">
        <select id="typeselect" class="form-control" name="crm" required>
            <option value='0'>Select Type</option>
            <option value='1'>Type1</option>
            <option value='2'>Type2</option>
        </select>
    </div>
  </div>

在js文件中

$("#typeselect").select2({
        placeholder: 'Select Type'
    });

Answer 1

＆＃13;

function deleteItem() {
   if (confirm("Are you sure?")) {
     $("#type option:selected").remove();
   }
   return false;
}

＆＃13;

<script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select id='type'>
<option value='1'>Type1</option>
<option value='2'>Type2</option>
</select>
<button onclick='deleteItem()'>Remove</button>

＆＃13;

在onClick标记上添加option个事件，如：

<select id='type'>
    <option value='1'>Type1</option>
    <option value='2'>Type2</option>
</select>
<button onclick='deleteItem()'>Remove</button>

然后您需要将confirm()添加到deleteItem();，如下所示：

function deleteItem() {
   if (confirm("Are you sure?")) {
     $("#type option:selected").remove();
   }
   return false;
}

请试试这个并告诉我这是否解决了您的问题!!

Answer 2

以下是两种方法：

使用简单的Confirm，例如if (confirm("Are you sure?")) {// your deletion code}
使用Jquery-UI - Dialog，请参阅下面的示例

＆＃13;

$("#typeselect").select2({
  placeholder: 'Select Type'
});

$("#remove").click(function() {
  var selectedval = $("#typeselect option:selected").val();
  if (selectedval > 0) {
    $("#dialog-confirm").dialog({
      resizable: false,
      height: "auto",
      width: 400,
      modal: true,
      buttons: {
        "Delete all items": function() {
          $("#typeselect option:selected").remove();
          $(this).dialog("close");
        },
        Cancel: function() {
          $(this).dialog("close");
        }
      }
    });
  }
})

＆＃13;

#dialog-confirm {
  display: none
}

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/css/select2.min.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/js/select2.min.js"></script>
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<div class="form-group">
  <label for="name" class="col-lg-3 control-label required">Select Type</label>
  <div class="col-lg-9">
    <select id="typeselect" class="form-control" name="crm" required>
            <option value='0'>Select Type</option>
            <option value='1'>Type1</option>
            <option value='2'>Type2</option>
        </select>
    <button id="remove">Remove selected value</button>
    <div id="dialog-confirm" title="Delete option">
      <p><span class="ui-icon ui-icon-alert" style="float:left; margin:12px 12px 20px 0;"></span>Do you wish to delete this option?</p>
    </div>
  </div>
</div>

＆＃13;

如何在从select2中删除标记之前显示确认框

2 个答案: