使用datatables.js对格式为#,###,###.##的数字进行排序

Question

在我的国家,表达数字的惯例是使用.作为千位分隔符和小数分隔符.一个例子是:25.367,212我无法使datatables.js对使用此格式的任何列进行排序.

我使用以下扩展名:

//formatted number sort
jQuery.extend(jQuery.fn.dataTableExt.oSort, {
  "formatted-num-pre": function (a) {
    a = (a === "-" || a === "") ? 0 : a.replace(/[^\d\-\.]/g, "");
    return parseFloat(a);
  },

  "formatted-num-asc": function (a, b) {
    return a - b;
  },

  "formatted-num-desc": function (a, b) {
    return b - a;
  }
});

//formatted number autodetection
jQuery.fn.dataTableExt.aTypes.unshift(
    function (sData) {
      var deformatted = sData.replace(/[^\d\-\.\/a-zA-Z]/g, '');
      if ($.isNumeric(deformatted) || deformatted === "-") {
        return 'formatted-num';
      }
      return null;
    }
);

我搜索了数据表文档和论坛,但没有找到解决方案.有什么建议？我使用的是jquery 1.9.1和datatables 1.9.4

Answer 1

我最终通过以下方式解决了这个问题:

jQuery.fn.dataTableExt.oSort['numeric-comma-asc'] = function (a, b) {
    //remove the dots (.) from the string and then replaces the comma with a dot
  var x = (a == "-") ? 0 : a.replace(/\./g, "").replace(/,/, ".");
  var y = (b == "-") ? 0 : b.replace(/\./g, "").replace(/,/, ".");
  x = parseFloat(x);
  y = parseFloat(y);
  return ((x < y) ? -1 : ((x > y) ? 1 : 0));
};

jQuery.fn.dataTableExt.oSort['numeric-comma-desc'] = function (a, b) {
  var x = (a == "-") ? 0 : a.replace(/\./g, "").replace(/,/, ".");
  var y = (b == "-") ? 0 : b.replace(/\./g, "").replace(/,/, ".");
  x = parseFloat(x);
  y = parseFloat(y);
  return ((x < y) ? 1 : ((x > y) ? -1 : 0));
};

//numeric comma autodetect
jQuery.fn.dataTableExt.aTypes.unshift(
            function (sData) {
   //include the dot in the sValidChars string (don't place it in the last position)
              var sValidChars = "0123456789-.,";
              var Char;
              var bDecimal = false;

              /* Check the numeric part */
              for (i = 0 ; i < sData.length ; i++) {
                Char = sData.charAt(i);
                if (sValidChars.indexOf(Char) == -1) {
                  return null;
                }

                /* Only allowed one decimal place... */
                if (Char == ",") {
                  if (bDecimal) {
                    return null;
                  }
                  bDecimal = true;
                }
              }

              return 'numeric-comma';
            }
        );