javascript - 如何使用 jquery 禁用或隐藏轮播下一个/上一个图标

标签 javascript jquery html css

我正在使用 bootstrap4 轮播，我在表内使用轮播。我只是使用轮播下一个/上一个图标创建表分页。现在，当我们位于轮播的第一页并仅显示下一个图标时，我很难创建隐藏上一个图标，然后当我们转到第二页时，上一个图标要显示。

当我们转到最后一页时，下一个图标也想隐藏并仅显示上一个图标。

任何新的方法或建议请告诉我..

这是我尝试过的代码..

$(document).ready(function() {
  $("#myCarousel").carousel({
    interval: false
  });
});

pageSize = 3
incremSlide = 4
startPage = 0;
numberPage = 0;

var pageCount = $(".line-content").length / pageSize;
var totalSlidepPage = Math.floor(pageCount / incremSlide);

for (var i = 0; i < pageCount; i++) {
  $("#pagin").append('<li><a href="#">' + (i + 1) + '</a></li> ');
  if (i > pageSize) {
    $("#pagin li").eq(i).hide();
  }
}

var prev = $("<li/>").addClass("<").html(">").click(function() {
  startPage -= 3
  incremSlide -= 3
  slide();
});

prev.hide();

var next = $("<li/>").addClass("<").html(">").click(function() {
  startPage += 3;
  incremSlide += 3;
  slide();
});

$("#pagin").prepend(prev).append(next);

$("#pagin li").first().find("a").addClass("current");

slide = function(sens) {
  $("#pagin li").hide();

  for (t = startPage; t < incremSlide; t++) {
    $("#pagin li").eq(t + 1).show();
  }
  if (startPage == 0) {
    next.show();
    prev.hide();
  } else if (numberPage == totalSlidepPage) {
    next.hide();
    prev.show();
  } else {
    next.show();
    prev.show();
  }
}

showPage = function(page) {
  $(".line-content").hide();
  $(".line-content").each(function(n) {
    if (n >= pageSize * (page - 1) && n < pageSize * page)
      $(this).show();
  });
}

showPage(1);
$("#pagin li a").eq(0).addClass("current");

$("#pagin li a").click(function() {
  $("#pagin li a").removeClass("current");
  $(this).addClass("current");
  showPage(parseInt($(this).text()));
});
$('.carousel-control-prev').click(function(e) {
  var currentPage = parseInt($("#pagin li a.current").text());
  var prevPage = currentPage - 1;
  if (prevPage < pageSize) {
    showPage(prevPage);
    var currentObj = $("#pagin li a.current");
    $("#pagin li a.current").parent().prev().find('a').addClass('current');
    currentObj[0].className = "";

  } else {
    e.preventDefault();
  }
});
$('.carousel-control-next').click(function(e) {
  var currentPage = parseInt($("#pagin li a.current").text());
  var nextPage = currentPage + 1;
  if (nextPage < pageSize) {
    showPage(nextPage);
    $("#pagin li a.current").parent().next().find('a').addClass('current');
    var currentObj = $("#pagin li a.current");
    currentObj[0].className = "";
  } else {
    e.preventDefault();
  }
});

// tried another way

function carouselPage() {
  var checkitem = function() {
    var $this;
    $this = $("#myCarousel");
    if ($("#myCarousel .carousel-inner .item:first").hasClass("active")) {
      $this.children(".left").hide();
      $this.children(".right").show();
    } else if ($("#myCarousel .carousel-inner .item:last").hasClass("active")) {
      $this.children(".right").hide();
      $this.children(".left").show();
    } else {
      $this.children(".carousel-control").show();
    }
  };

  checkitem();

  $("#myCarousel").on("slid.bs.carousel", "", checkitem);
};
#preModal .viewing {
  -webkit-transform: translate(0, -50%);
  -o-transform: translate(0, -50%);
  transform: translate(0, -50%);
  top: 50%;
  margin: 0 auto;
}

input[type=checkbox] {
  /* left: 23px; */
  width: 15px;
}

.carousel-control-prev {
  height: fit-content;
  width: fit-content;
  top: 40%;
  left: 10px;
}

.carousel-control-next {
  right: 10px;
  height: fit-content;
  width: fit-content;
  top: 40%;
}

.contd {
  /* width: 160%;
            right: 30%; */
  width: 132%;
  right: 16%;
}

.predefineModal {
  padding-bottom: 0px;
  padding-top: 0px;
}

.current,
.carousel_li,
.carousel_a {
  display: none;
}


/* .contd:hover .carousel-control-next-icon {
        display: block;
    }
    
    .contd:hover .carousel-control-prev-icon {
        display: block;
    } */

.second {
  position: relative;
  right: 6%;
}

.modal-footer {
  max-width: 86%;
}

.indexBtn {
  color: #fff;
  background-color: #680f79;
  border-color: #680f79;
  box-shadow: none;
  display: inline-block;
  font-weight: 400;
  border: 1px solid transparent;
  padding: 3px .75rem;
  font-size: 1rem;
  border-radius: .25rem;
}

.indexBtn:hover {
  background-color: #c178cf;
}

.diss {
  color: #5f5e5e;
  background-color: #cecece;
  border-color: #cecece;
}

.btn {
  padding: 3px .75rem !important;
}

.periodTime {
  padding: 15px;
  padding-bottom: 0px;
}

.carousel {
  /* background: #2f4357; */
  margin-top: 20px;
}

.carousel-control-prev-icon {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23680f79' viewBox='0 0 8 8'%3E%3Cpath d='M5.25 0l-4 4 4 4 1.5-1.5-2.5-2.5 2.5-2.5-1.5-1.5z'/%3E%3C/svg%3E") !important;
  position: relative;
  right: 37px;
}

.carousel-control-next-icon {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23680f79' viewBox='0 0 8 8'%3E%3Cpath d='M2.75 0l-1.5 1.5 2.5 2.5-2.5 2.5 1.5 1.5 4-4-4-4z'/%3E%3C/svg%3E") !important;
  position: relative;
  left: 37px;
}

ul#pagin {
  display: none;
}


/* .carousel-control-next,
    .carousel-control-prev {
        filter: invert(100%);
    } */


/* .carousel-control-prev-icon,
    .carousel-control-next-icon {
        position: relative;
        right: 2%;
        height: fit-content;
        width: fit-content;
        outline: black;
        background-size: 100%, 100%;
        border-radius: 50%;
        border: 1px solid black;
        background-image: none;
    }
    
    .carousel-control-next-icon:after {
        content: '>';
        font-size: 35px;
        color: #680f79;
        font-weight: 800;
    }
    
    .carousel-control-prev-icon:after {
        content: '<';
        font-size: 35px;
        color: #680f79;
        font-weight: 800;
    } */

.carousel-item {
  min-height: 180px;
  filter: blur(.0px) !important;
  /* transform: translateZ(0) !important; */
  backface-visibility: hidden !important;
  /* Prevent carousel from being distorted if for some reason image doesn't load */
}

.bs-example {
  margin: 20px;
  margin-bottom: 0px;
  margin-top: 0px;
}

.carousel-indicators li {
  background-color: #9C27B0 !important;
}

.ui-widget.ui-widget-content {
  right: 0px !important;
  width: 100%;
  padding: 17px;
}
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script>



<div class="modal-body predefineModal">
  <div class="bs-example">
    <div id="myCarousel" class="carousel slide">
      <!-- Wrapper for carousel items -->
      <div class="carousel-inner">
        <div class="carousel-item active">
          <div class="table-responsive">
            <table class="table table-bordered">
              <thead class="party_head">
                <tr>
                  <th>#</th>
                  <th>S.No</th>
                  <th>Trans.Type</th>
                  <th>Voucher Date</th>
                  <th>To A/c Name</th>
                  <th>Narration</th>
                  <th>Debit</th>
                  <th>Credit</th>
                </tr>
              </thead>
              <tbody>
                <tr class="line-content">
                  <td><input id="indeterminate-checkbox" type="checkbox" /></td>
                  <td>1</td>
                  <td>CP</td>
                  <td>DD-MM-YYYY</td>
                  <td>JOE</td>
                  <td>Narration</td>
                  <td>Debit</td>
                  <td>Credit</td>
                </tr>
                <tr class="line-content">
                  <td>
                    <input type="checkbox" id="indeterminate-checkbox" />
                  </td>
                  <td>2</td>
                  <td>BP</td>
                  <td>DD-MM-YYYY</td>
                  <td>PLUMZ</td>
                  <td>Narration</td>
                  <td>Debit</td>
                  <td>Credit</td>
                </tr>
                <tr class="line-content">
                  <td><input id="indeterminate-checkbox" type="checkbox" /></td>
                  <td>3</td>
                  <td>CR</td>
                  <td>DD-MM-YYYY</td>
                  <td>text</td>
                  <td>Narration</td>
                  <td>Debit</td>
                  <td>Credit</td>
                </tr>
                <tr class="line-content">
                  <td><input id="indeterminate-checkbox" type="checkbox" /></td>
                  <td>4</td>
                  <td>CR</td>
                  <td>DD-MM-YYYY</td>
                  <td>text</td>
                  <td>Narration</td>
                  <td>Debit</td>
                  <td>Credit</td>
                </tr>
                <tr class="line-content">
                  <td><input type="checkbox" id="indeterminate-checkbox" /></td>
                  <td>5</td>
                  <td>CR</td>
                  <td>DD-MM-YYYY</td>
                  <td>text</td>
                  <td>Narration</td>
                  <td>Debit</td>
                  <td>Credit</td>
                </tr>
              </tbody>
            </table>
          </div>
        </div>
      </div>

    </div>
    <!-- Carousel controls -->
    <ul id="pagin"></ul>
    <a class="left carousel-control-prev" href="#" role="button" data-slide="prev" onload="carouselPage()">
      <span class="carousel-control-prev-icon" aria-hidden="true"></span>
      <!-- <span class="sr-only">Previous</span> -->
    </a>
    <a class="right carousel-control-next" href="#" role="button" data-slide="next" onload="carouselPage()">
      <span class="carousel-control-next-icon" aria-hidden="true"></span>
      <!-- <span class="sr-only">Next</span> -->
    </a>
  </div>
</div>

fiddle : tried code fiddle

最佳答案


这是我的另一个答案，因为您需要通过 jQuery 完全自定义，并且您可以定义 data-showperpage="4" 中显示的每页记录。

我希望下面的代码片段对您有很大帮助。

$( document ).ready(function(){
  var counting = 0;
  var slideCounter = 0;
  var slidePerpage = Number($("#records").attr("data-showperpage"));
  var countSlides = $('#records tbody tr').length;
  var totalSlideCount = Math.ceil(countSlides/slidePerpage);
  if (countSlides>1) {
    $('.carousel-control-prev').hide();
    for (var i = 1; slidePerpage>=i; i++) {
  		$('#records tbody tr:nth-child('+i+')').addClass('active');
  	}
  }
  else if (countSlides==1) {
    $('.carousel-control-prev,.carousel-control-next').hide();
  }
  

  //Prev Functionality
  $('.carousel-control-prev').on('click', function(){
  	slideCounter = slideCounter-slidePerpage; 
  	$('#records tbody tr').removeClass('active');
  	for(i = slideCounter+1; (slideCounter+slidePerpage)>=i; i++){
  		//console.log(i); // (4,5,6) // (7,8,9) //....
  		$('#records tbody tr:nth-child('+i+')').addClass('active');
  	}
  	counting = counting-1;
  	if (counting==0) {
      $('.carousel-control-prev').hide();
    }
    else{
      $('.carousel-control-prev,.carousel-control-next').show();
    }
  });


  //Next Functionality
  $('.carousel-control-next').on('click', function(){
  	slideCounter = slideCounter+slidePerpage;  //3,6,9,12....
  	$('#records tbody tr').removeClass('active');
  	for(i = slideCounter+1; (slideCounter+slidePerpage)>=i; i++){
  		// console.log(i); // (4,5,6) // (7,8,9) //....
  		$('#records tbody tr:nth-child('+i+')').addClass('active');
  	}
  	counting = counting+1;
  	if (totalSlideCount==counting+1) {
      $('.carousel-control-next').hide();
    }
    else{
      $('.carousel-control-prev,.carousel-control-next').show();
    }
  });
  
});
.carousel-control-prev,.carousel-control-next{
  width: 40px!important;
  height: 40px!important;
  position: absolute;
  top: 0%;
  margin-top: 5px;
  border: 2px solid #888;
  border-radius: 50px;
  background: rgba(255,255,255,0.95);
  opacity: 1;
  cursor: pointer;
}
.carousel-control-prev-icon {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23680f79' viewBox='0 0 8 8'%3E%3Cpath d='M5.25 0l-4 4 4 4 1.5-1.5-2.5-2.5 2.5-2.5-1.5-1.5z'/%3E%3C/svg%3E") !important;
}
.carousel-control-next-icon {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23680f79' viewBox='0 0 8 8'%3E%3Cpath d='M2.75 0l-1.5 1.5 2.5 2.5-2.5 2.5 1.5 1.5 4-4-4-4z'/%3E%3C/svg%3E") !important;
}
.table-pagination tbody tr{
	display: none;
}
.table-pagination tbody tr.active{
	display: table-row;
}	
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script>

<div class="container p-3 my-1">
  <div class="row">
    <div class="col-sm-12 position-relative">
      <div class="table-responsive">
        <table class="table table-bordered table-pagination" id="records" data-showperpage="4">
          <thead>
            <tr>
              <th>#</th>
              <th>S.No</th>
              <th>Table #1</th>
            </tr>
          </thead>
          <tbody>
            <tr>
              <td><input id="indeterminate-checkbox" type="checkbox" /></td>
              <td>1</td>
              <td>CP</td>
            </tr>
            <tr>
              <td>
                <input type="checkbox" id="indeterminate-checkbox" />
              </td>
              <td>2</td>
              <td>BP</td>
            </tr>
            <tr>
              <td><input id="indeterminate-checkbox" type="checkbox" /></td>
              <td>3</td>
              <td>CR</td>
            </tr>
            <tr>
              <td><input id="indeterminate-checkbox" type="checkbox" /></td>
              <td>4</td>
              <td>CR</td>
            </tr>
            <tr>
              <td><input type="checkbox" id="indeterminate-checkbox" /></td>
              <td>5</td>
              <td>CR</td>
            </tr>
            <tr>
              <td><input id="indeterminate-checkbox" type="checkbox" /></td>
              <td>6</td>
              <td>CP</td>
            </tr>
            <tr>
              <td>
                <input type="checkbox" id="indeterminate-checkbox" />
              </td>
              <td>7</td>
              <td>BP</td>
            </tr>
            <tr>
              <td><input id="indeterminate-checkbox" type="checkbox" /></td>
              <td>8</td>
              <td>CR</td>
            </tr>
            <tr>
              <td><input id="indeterminate-checkbox" type="checkbox" /></td>
              <td>9</td>
              <td>CR</td>
            </tr>
            <tr>
              <td><input type="checkbox" id="indeterminate-checkbox" /></td>
              <td>10</td>
              <td>CR</td>
            </tr>
            <tr>
              <td><input id="indeterminate-checkbox" type="checkbox" /></td>
              <td>11</td>
              <td>CP</td>
            </tr>
            <tr>
              <td>
                <input type="checkbox" id="indeterminate-checkbox" />
              </td>
              <td>12</td>
              <td>BP</td>
            </tr>
            <tr>
              <td><input id="indeterminate-checkbox" type="checkbox" /></td>
              <td>13</td>
              <td>CR</td>
            </tr>
            <tr>
              <td><input id="indeterminate-checkbox" type="checkbox" /></td>
              <td>14</td>
              <td>CR</td>
            </tr>
            <tr>
              <td><input type="checkbox" id="indeterminate-checkbox" /></td>
              <td>15</td>
              <td>CR</td>
            </tr>
            <tr>
              <td><input type="checkbox" id="indeterminate-checkbox" /></td>
              <td>16</td>
              <td>CR</td>
            </tr>
            <tr>
              <td><input type="checkbox" id="indeterminate-checkbox" /></td>
              <td>17</td>
              <td>CR</td>
            </tr>
            <tr>
              <td><input type="checkbox" id="indeterminate-checkbox" /></td>
              <td>18</td>
              <td>CR</td>
            </tr>
            <tr>
              <td><input type="checkbox" id="indeterminate-checkbox" /></td>
              <td>19</td>
              <td>CR</td>
            </tr>
          </tbody>
        </table>
      </div>
      <div class="left carousel-control-prev">
        <span class="carousel-control-prev-icon" aria-hidden="true"></span>
      </div>
      <div class="right carousel-control-next">
        <span class="carousel-control-next-icon" aria-hidden="true"></span>
      </div>
    </div>
  </div>
</div>

关于javascript - 如何使用 jquery 禁用或隐藏轮播下一个/上一个图标，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/59588070/

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