Jquery动态列功能完整实例

时间:2021-04-02 人气:0

本文实例讲述了Jquery动态列功能。分享给大家供大家参考，具体如下：

看到有人写的一个JQUERY动态列，值得参考，特转发下来

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<style>
body {
  margin: 50px 100px;
}
#dataTable tr td{
  width: 100px;
  display: none;
}
.theader {
  background:#A4D4FC;
}
</style>
<script src="http://libs.baidu.com/jquery/1.8.1/jquery.min.js"></script>
<script type="text/javascript">
$(function(){
//init page
var columns = ['Column A', 'Column B', 'Column C', 'Column D', 'Column E', 'Column F', 'Column G'];
for(var i=0; i < columns.length; i++){
  //generate dropdown list
  $('#ColSelect').append('<option>' + columns[i] + '</option>');
  //generate header
  $('#dataTable tr[class="theader"]').append('<td id="head_' + (i+1) +'"></td>');
  //generate table body
  $('#dataTable tr[class="tbody"]').append('<td name="col_' + (i+1) + '"></td>');
}
//JSON format data
var data = {
  'Column A': ['A1', 'A2', 'A3', 'A4', 'A5'],
  'Column B': ['B1', 'B2', 'B3', 'B4', 'B5'],
  'Column C': ['C1', 'C2', 'C3', 'C4', 'C5'],
  'Column D': ['D1', 'D2', 'D3', 'D4', 'D5'],
  'Column E': ['E1', 'E2', 'E3', 'E4', 'E5'],
  'Column F': ['F1', 'F2', 'F3', 'F4', 'F5'],
  'Column G': ['G1', 'G2', 'G3', 'G4', 'G5']
};
//Generate tr as per data size
for(var i=0; ++i < data['Column A'].length; ){
  $('#dataTable').append($('#dataTable tr:last').clone()); 
}
//after tr generate, add stripe style on tr
$("#dataTable tr:even[class!='theader']").css("background","#EFEFEF");
//register event on dropdown list.
var colIndex = 0;
$('#ColSelect').change(function(e){
  $("#ColSelect option:selected").each(function () {
    var val = $(this).val();
    if(val){
      colIndex++;
      $(this).remove();//remove selected from dropdown
      $('#head_'+colIndex).text(val).show();//css('display', 'block');//display header, Note:css('display', 'block') have compatibility issue on FF
      var idx = 0;
      $('td[name="col_'+colIndex+'"]').each(function(){
        $(this).text(data[val][idx++]).show();//loop to put value in each tr for one column
      });
    }
   });
});
});
</script>
<title>JQuery</title>
</head>
<body>
  <select id="ColSelect">
    <option value="">--Select--</option>
  </select>
  <table id="dataTable">
    <tr class="theader"></tr>
    <tr class="tbody"></tr>
  </table>
</body>
</html>

希望本文所述对大家jQuery程序设计有所帮助。

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