javascript - 使用 JQuery 动态禁用多选选项

Question

我有两个多选下拉菜单，它们都包含相同的一组值。

如果您在第一个下拉菜单中选择了一个选项，那么在第二个下拉菜单中应该会禁用该选项。

我可以为第一个选项执行此操作，但不能为后续选项执行此操作。

请帮忙

<h4>Subject to </h4> <br>
                    <div class="form-group">
                        <label for="carrier">Charges * </label>
                        <select placeholder="Choose " class="form-control chosen-select" tabindex="2" name="subject_to[]" id="subject_to_id" width="40%"multiple>
                        <!-- chosen-select -->
                            <option value=""></option>  
                            <option value="CURRENCY" id="sub_opt1">CURRENCY</option>
                            <option value="BUNKER" id="sub_opt2">BUNKER</option>
                            <option value="LOW SULFUR" id="sub_opt3">LOW SULFUR</option>
                            <option value="CANAL" id="sub_opt4">CANAL</option>
                            <option value="GULF" id="sub_opt5">GULF</option>
                            <option value="PIRACY" id="sub_opt6">PIRACY</option>
                            <option value="WAR RISK" id="sub_opt7">WAR RISK</option>
                            <option value="CONGESTION" id="sub_opt8">CONGESTION</option>
                            <option value="PEAK SEASON" id="sub_opt9">PEAK SEASON</option>
                            <option value="RATE INCREASE" id="sub_opt10">RATE INCREASE</option>
                            <option value="EMERGENCY" id="sub_opt11">EMERGENCY</option>
                            <option value="WINTER" id="sub_opt1">WINTER</option>
                            <option value="DRAFT LIMITATION" id="sub_opt12">DRAFT LIMITATION</option>
                            <option value="OTHER" id="sub_opt13">OTHER</option>
                            <option value="TERMINAL HANDLING" id="sub_opt14">TERMINAL HANDLING</option>
                            <option value="BOOKING" id="sub_opt15">BOOKING</option>
                            <option value="DOCUMENTATION" id="sub_opt16">DOCUMENTATION</option>
                            <option value="TELEX" id="sub_opt17">TELEX</option>
                            <option value="EXPORT DECLARATION (ENS, AMS, etc.)" id="sub_opt18">EXPORT DECLARATION (ENS, AMS, etc.)</option>
                            <option value="PORT CHARGE" id="sub_opt19">PORT CHARGE</option>
                            <option value="SECURITY" id="sub_opt20">SECURITY</option>
                            <option value="SEAL" id="sub_opt21">SEAL</option>
                            <option value="CONTAINER INSPECTION" id="sub_opt22">CONTAINER INSPECTION</option>
                            <option value="CONTAINER WEIGHTING" id="sub_opt23">CONTAINER WEIGHTING</option>
                            <option value="CIC/EBS" id="sub_opt24">CIC/EBS</option>
                        </select>
                    </div>

                </div>
                <div class="col-md-4">
                <h4> Inclusive </h4> <br>
                    <div class="form-group">
                        <label for="inclusive"> Charges * </label>
                        <select placeholder="" class="form-control" tabindex="2" id="inclusive_id" name="inclusive[]" multiple>
                            <!-- chosen-select -->
                            <option value=""></option>  
                            <option value="CURRENCY" id="inc_opt1">CURRENCY</option>
                            <option value="BUNKER" id="inc_opt2">BUNKER</option>
                            <option value="LOW SULFUR" id="inc_opt3">LOW SULFUR</option>
                            <option value="CANAL" id="inc_opt4">CANAL</option>
                            <option value="GULF" id="inc_opt5">GULF</option>
                            <option value="PIRACY" id="inc_opt6">PIRACY</option>
                            <option value="WAR RISK" id="inc_opt7">WAR RISK</option>
                            <option value="CONGESTION" id="inc_opt8">CONGESTION</option>
                            <option value="PEAK SEASON" id="inc_opt9">PEAK SEASON</option>
                            <option value="RATE INCREASE" id="inc_opt10">RATE INCREASE</option>
                            <option value="EMERGENCY" id="inc_opt11">EMERGENCY</option>
                            <option value="WINTER" id="inc_opt1">WINTER</option>
                            <option value="DRAFT LIMITATION" id="inc_opt12">DRAFT LIMITATION</option>
                            <option value="OTHER" id="inc_opt13">OTHER</option>
                            <option value="TERMINAL HANDLING" id="inc_opt14">TERMINAL HANDLING</option>
                            <option value="BOOKING" id="inc_opt15">BOOKING</option>
                            <option value="DOCUMENTATION" id="inc_opt16">DOCUMENTATION</option>
                            <option value="TELEX" id="inc_opt17">TELEX</option>
                            <option value="EXPORT DECLARATION (ENS, AMS, etc.)" id="inc_opt18">EXPORT DECLARATION (ENS, AMS, etc.)</option>
                            <option value="PORT CHARGE" id="inc_opt19">PORT CHARGE</option>
                            <option value="SECURITY" id="inc_opt20">SECURITY</option>
                            <option value="SEAL" id="inc_opt21">SEAL</option>
                            <option value="CONTAINER INSPECTION" id="inc_opt22">CONTAINER INSPECTION</option>
                            <option value="CONTAINER WEIGHTING" id="inc_opt23">CONTAINER WEIGHTING</option>
                            <option value="CIC/EBS" id="inc_opt24">CIC/EBS</option>
                        </select>
                    </div>



    $('#subject_to_id').on('change', function (e) {
        var optionSelected = $("option:selected", this);
        var idSelected = this.value;

        var idSelected = $(this).children(":selected").attr("id");
        var str = idSelected;

        //alert(str + " "+str.length)

        var inc_id = "#inc_"+str.substring(4, str.length);

        //alert(inc_id);
        $(inc_id).attr("disabled","disabled");

});

Answer 1

这可以通过相对选择器来完成。为此，我使用了一个 option 点击事件。然后我抓取另一个表单组并对其进行修改。它双向工作，这意味着如果您从选择 A 中选择，则选择 B 将被修改，反之亦然。

$("option").click(function () {
    $otherFormGroup = $(".form-group").not(
         $(this)
            .parents(".form-group:first")
    ); //grabs the other form group
    $otherFormGroup.find("option").attr("disabled", false); //resets all other banned items
    $otherFormGroup.find("option[value='"+$(this).attr("value")+"']")
        .attr("disabled",true); //disabled selected item in the other select area
});

<!-- Modified HTML to only demostrate content better in snippet, you can leave your HTML as is. -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
Subject To:
<br><br>
<div class="form-group  form-group0">
   <label for="carrier">Charges * </label>
   <select placeholder="Choose " class="form-control chosen-select" tabindex="2" name="subject_to[]" id="subject_to_id" width="40%"multiple>
      <!-- chosen-select -->
      <option value=""></option>
      <option value="CURRENCY" id="sub_opt1">CURRENCY</option>
      <option value="BUNKER" id="sub_opt2">BUNKER</option>
      <option value="LOW SULFUR" id="sub_opt3">LOW SULFUR</option>
      <option value="CANAL" id="sub_opt4">CANAL</option>
      <option value="GULF" id="sub_opt5">GULF</option>
      <option value="PIRACY" id="sub_opt6">PIRACY</option>
      <option value="WAR RISK" id="sub_opt7">WAR RISK</option>
      <option value="CONGESTION" id="sub_opt8">CONGESTION</option>
      <option value="PEAK SEASON" id="sub_opt9">PEAK SEASON</option>
      <option value="RATE INCREASE" id="sub_opt10">RATE INCREASE</option>
      <option value="EMERGENCY" id="sub_opt11">EMERGENCY</option>
      <option value="WINTER" id="sub_opt1">WINTER</option>
      <option value="DRAFT LIMITATION" id="sub_opt12">DRAFT LIMITATION</option>
      <option value="OTHER" id="sub_opt13">OTHER</option>
      <option value="TERMINAL HANDLING" id="sub_opt14">TERMINAL HANDLING</option>
      <option value="BOOKING" id="sub_opt15">BOOKING</option>
      <option value="DOCUMENTATION" id="sub_opt16">DOCUMENTATION</option>
      <option value="TELEX" id="sub_opt17">TELEX</option>
      <option value="EXPORT DECLARATION (ENS, AMS, etc.)" id="sub_opt18">EXPORT DECLARATION (ENS, AMS, etc.)</option>
      <option value="PORT CHARGE" id="sub_opt19">PORT CHARGE</option>
      <option value="SECURITY" id="sub_opt20">SECURITY</option>
      <option value="SEAL" id="sub_opt21">SEAL</option>
      <option value="CONTAINER INSPECTION" id="sub_opt22">CONTAINER INSPECTION</option>
      <option value="CONTAINER WEIGHTING" id="sub_opt23">CONTAINER WEIGHTING</option>
      <option value="CIC/EBS" id="sub_opt24">CIC/EBS</option>
   </select>
</div>

From:
<br><br>
<div class="form-group form-group1">
   <label for="carrier">Charges * </label>
   <select placeholder="Choose " class="form-control chosen-select" tabindex="2" name="subject_to[]" id="subject_to_id" width="40%"multiple>
      <!-- chosen-select -->
      <option value=""></option>
      <option value="CURRENCY" id="sub_opt1">CURRENCY</option>
      <option value="BUNKER" id="sub_opt2">BUNKER</option>
      <option value="LOW SULFUR" id="sub_opt3">LOW SULFUR</option>
      <option value="CANAL" id="sub_opt4">CANAL</option>
      <option value="GULF" id="sub_opt5">GULF</option>
      <option value="PIRACY" id="sub_opt6">PIRACY</option>
      <option value="WAR RISK" id="sub_opt7">WAR RISK</option>
      <option value="CONGESTION" id="sub_opt8">CONGESTION</option>
      <option value="PEAK SEASON" id="sub_opt9">PEAK SEASON</option>
      <option value="RATE INCREASE" id="sub_opt10">RATE INCREASE</option>
      <option value="EMERGENCY" id="sub_opt11">EMERGENCY</option>
      <option value="WINTER" id="sub_opt1">WINTER</option>
      <option value="DRAFT LIMITATION" id="sub_opt12">DRAFT LIMITATION</option>
      <option value="OTHER" id="sub_opt13">OTHER</option>
      <option value="TERMINAL HANDLING" id="sub_opt14">TERMINAL HANDLING</option>
      <option value="BOOKING" id="sub_opt15">BOOKING</option>
      <option value="DOCUMENTATION" id="sub_opt16">DOCUMENTATION</option>
      <option value="TELEX" id="sub_opt17">TELEX</option>
      <option value="EXPORT DECLARATION (ENS, AMS, etc.)" id="sub_opt18">EXPORT DECLARATION (ENS, AMS, etc.)</option>
      <option value="PORT CHARGE" id="sub_opt19">PORT CHARGE</option>
      <option value="SECURITY" id="sub_opt20">SECURITY</option>
      <option value="SEAL" id="sub_opt21">SEAL</option>
      <option value="CONTAINER INSPECTION" id="sub_opt22">CONTAINER INSPECTION</option>
      <option value="CONTAINER WEIGHTING" id="sub_opt23">CONTAINER WEIGHTING</option>
      <option value="CIC/EBS" id="sub_opt24">CIC/EBS</option>
   </select>
</div>

请注意，hardik prajapati 的帖子在您尝试几次后没有正确重置选项。