使用Jquery的固定列（带有表头的问题）

Question

I have an HTML table and I need the first column of the table to be fixed so I can scroll all the way the the right and see the information related to any record of the first column, when I try to scroll the first column is ok, but it also put as fixed the next two headers of my table.

This is my jquery:

(function($) {

$.fn.tableHeadFixer = function(param) {
    var defaults = {
        head: true,
        foot: false,
        left: 0,
        right: 0
    };

    var settings = $.extend({}, defaults, param);

    return this.each(function() {
        settings.table = this;
        settings.parent = $("<div></div>");
        setParent();

        if(settings.head == true)
            fixHead();

        if(settings.left > 0)
            fixLeft();

        // self.setCorner();

        $(settings.parent).trigger("scroll");

        $(window).resize(function() {
            $(settings.parent).trigger("scroll");
        });
    });

    function setTable(table) {

    }


    function setParent() {
        var container = $(settings.table).parent();
        var parent = $(settings.parent);
        var table = $(settings.table);

        table.before(parent);
        parent.append(table);
        parent
            .css({
                'width' : '100%',
                'height' : container.css("height"),
                'overflow' : 'scroll',
                'max-height' : container.css("max-height"),
                'min-height' : container.css("min-height"),
                'max-width' : container.css('max-width'),
                'min-width' : container.css('min-width')
            });

        parent.scroll(function() {
            var scrollWidth = parent[0].scrollWidth;
            var clientWidth = parent[0].clientWidth;
            var scrollHeight = parent[0].scrollHeight;
            var clientHeight = parent[0].clientHeight;
            var top = parent.scrollTop();
            var left = parent.scrollLeft();

            if(settings.head)
                this.find("thead tr > *").css("top", top);

            if(settings.left > 0)
                settings.leftColumns.css("left", left);

        }.bind(table));
    }

    function fixHead () {
        var thead = $(settings.table).find("thead");
        var tr = thead.find("tr");
        var cells = thead.find("tr > *");

        setBackground(cells);
        cells.css({
            'position' : 'relative'
        });
    }


    function fixLeft () {
        var table = $(settings.table);

        var fixColumn = settings.left;

        settings.leftColumns = $();

        for(var i = 1; i <= fixColumn; i++) {
            settings.leftColumns = settings.leftColumns
                .add(table.find("tr > *:nth-child(" + i + ")"));
        }

        var column = settings.leftColumns;

        column.each(function(k, cell) {
            var cell = $(cell);

            setBackground(cell);
            cell.css({
                'position' : 'relative'
            });
        });
    }


    function setBackground(elements) {
        elements.each(function(k, element) {
            var element = $(element);
            var parent = $(element).parent();

            var elementBackground = element.css("background-color");
            elementBackground = (elementBackground == "transparent" || elementBackground == "rgba(0, 0, 0, 0)") ? null : elementBackground;

            var parentBackground = parent.css("background-color");
            parentBackground = (parentBackground == "transparent" || parentBackground == "rgba(0, 0, 0, 0)") ? null : parentBackground;

            var background = parentBackground ? parentBackground : "white";
            background = elementBackground ? elementBackground : background;

            element.css("background-color", background);
        });
    }
};
})(jQuery);

And I also put the example in this Fiddle on it the window dont let the example to scroll so if you load it locally and make the window small you'll be able so scroll and see the issue I mentioned before with the headers of the table

Hope someone help me on this!

Answer 1

If you're interested, this is possible simply with just a HTML and CSS solution, no JS. Much easier to implement, and also works cross browser will no bugs like what your above JS may produce.

CSS:

section {
  position: relative;
  border: 1px solid #000;
  padding-top: 37px;
  background: #500;
}
section.positioned {
  position: absolute;
  top:100px;
  left:100px;
  width:800px;
  box-shadow: 0 0 15px #333;
}
.container {
  overflow-y: auto;
  height: 200px;
}
table {
  border-spacing: 0;
  width:100%;
}
td + td {
  border-left:1px solid #eee;
}
td, th {
  border-bottom:1px solid #eee;
  background: #ddd;
  color: #000;
  padding: 10px 25px;
}
th {
  height: 0;
  line-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  color: transparent;
  border: none;
  white-space: nowrap;
}
th div{
  position: absolute;
  background: transparent;
  color: #fff;
  padding: 9px 25px;
  top: 0;
  margin-left: -25px;
  line-height: normal;
  border-left: 1px solid #800;
}
th:first-child div{
  border: none;
}

HTML:

<section class="">
  <div class="container">
    <table>
      <thead>
        <tr class="header">
          <th>
            Table attribute name
            <div>Table attribute name</div>
          </th>
          <th>
            Value
            <div>Value</div>
          </th>
          <th>
            Description
            <div>Description</div>
          </th>
        </tr>
      </thead>
      <tbody>
        <tr>
          <td>align</td>
          <td>left, center, right</td>
          <td>Not supported in HTML5. Deprecated in HTML 4.01. Specifies the alignment of a table according to surrounding text</td>
        </tr>
        <tr>
          <td>bgcolor</td>
          <td>rgb(x,x,x), #xxxxxx, colorname</td>
          <td>Not supported in HTML5. Deprecated in HTML 4.01. Specifies the background color for a table</td>
        </tr>
        <tr>
          <td>border</td>
          <td>1,""</td>
          <td>Specifies whether the table cells should have borders or not</td>
        </tr>
      </tbody>
    </table>
  </div>
</section>

WORKING EXAMPLE