Question

我正在尝试创建一个表，当有超过10行时，我想创建一个超链接，告诉用户进入下一页。这个概念称为分页，但我如何通过jQuery / JavaScript实现这一目标？

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
        <title>Table</title>
        <style type="text/css">
            th {
                background-color: #ddd;
            }
            th td {
                 border: 1px solid black;
            }
        </style>
    </head>
    <body>
        <table>
            <th>Heading1</th>
            <th>Heading2</th>
            <tbody>
                <tr><td>This is td</td><td>This is td</td></tr>
                <tr><td>This is td</td><td>This is td</td></tr>
                <tr><td>This is td</td><td>This is td</td></tr>
                <tr><td>This is td</td><td>This is td</td></tr>
                <tr><td>This is td</td><td>This is td</td></tr>
                <tr><td>This is td</td><td>This is td</td></tr>
                <tr><td>This is td</td><td>This is td</td></tr>
                <tr><td>This is td</td><td>This is td</td></tr>
                <tr><td>This is td</td><td>This is td</td></tr>
                <tr></tr>
            </tbody>
        </table>
    </body>
</html>

Answer 1

除了插件之外，如果你想查看简化的代码，这样你就可以自己了解分页的工作原理，看看这个小提琴我为你敲了。

http://jsfiddle.net/29W9Q/

代码只是绑定两个按钮，上一个和下一个按钮，以更改您指定的表的行的可见性。每次单击按钮时，步骤为：查看是否可以向后或向前移动，隐藏当前行，查找应该可见的行，向上或向下10行，然后使它们可见。其余代码用于说明示例。

真正的jQuery工作由less-than和greater-than选择器完成：:lt()和:gt()，用于选择要隐藏/显示的行。

var maxRows = 10;
$('.paginated-table').each(function() {
    var cTable = $(this);
    var cRows = cTable.find('tr:gt(0)');
    var cRowCount = cRows.size();

    if (cRowCount < maxRows) {
        return;
    }

    /* add numbers to the rows for visuals on the demo */
    cRows.each(function(i) {
        $(this).find('td:first').text(function(j, val) {
           return (i + 1) + " - " + val;
        }); 
    });

    /* hide all rows above the max initially */
    cRows.filter(':gt(' + (maxRows - 1) + ')').hide();

    var cPrev = cTable.siblings('.prev');
    var cNext = cTable.siblings('.next');

    /* start with previous disabled */
    cPrev.addClass('disabled');

    cPrev.click(function() {
        var cFirstVisible = cRows.index(cRows.filter(':visible'));

        if (cPrev.hasClass('disabled')) {
            return false;
        }

        cRows.hide();
        if (cFirstVisible - maxRows - 1 > 0) {
            cRows.filter(':lt(' + cFirstVisible + '):gt(' + (cFirstVisible - maxRows - 1) + ')').show();
        } else {
            cRows.filter(':lt(' + cFirstVisible + ')').show();
        }

        if (cFirstVisible - maxRows <= 0) {
            cPrev.addClass('disabled');
        }

        cNext.removeClass('disabled');

        return false;
    });

    cNext.click(function() {
        var cFirstVisible = cRows.index(cRows.filter(':visible'));

        if (cNext.hasClass('disabled')) {
            return false;
        }

        cRows.hide();
        cRows.filter(':lt(' + (cFirstVisible +2 * maxRows) + '):gt(' + (cFirstVisible + maxRows - 1) + ')').show();

        if (cFirstVisible + 2 * maxRows >= cRows.size()) {
            cNext.addClass('disabled');
        }

        cPrev.removeClass('disabled');

        return false;
    });

});

带有jQuery分页的HTML表

1 个答案: