从外部div滚动div

时间:2012-11-30 21:17:47

标签: javascript html css

查看下面的小html结构示例以获取上下文。查看此fiddle以查找问题的示例。

小提琴用户的简短说明:

  1. 向左滚动 - 不可见垂直滚动条
  2. 向右滚动 - 垂直可见
  3. 我希望垂直滚动条始终可见
  4. 要求 - 标题必须保持固定(滚动时可见)
  5. 冗长的解释:

    我有一个带有固定标题和可滚动主体的表。复杂性需要两个表。这一切都很好。在我的事业中,我也有可调整大小的列。 table-layout: fixed为此工作。这是出现问题。

    为了使滚动体工作,我有一个包裹.rows表格的div用于滚动。这很有效,直到网格(特别是.rows表)在x方向溢出。在这种情况下,只有当网格一直向右滚动时,垂直滚动条才可见。因为滚动条位于.row-wrapper div上。这个溢出被.grid div隐藏了。我希望滚动条位于.grid-canvas div上,以便即使滚动到左侧也能看到它。

    <div class=grid>
        <div class=grid-canvas>
            <table class=header></table>
            <div class=row-wrapper>
                <table class=rows></table>
            </div>
        </div>
    </div>
    

    旁注:如果你将表格显示设置为阻止,那么除非你想支持我做的IE8,否则不需要包装div。也许有一种解决方法可以解决另一个问题。

3 个答案:

答案 0 :(得分:2)

经过几个小时的黑客攻击,没有运气,我决定将一些现有的文库分开,看看他们是如何实现这一目标的。不幸的是,我非常失望。所有人都在使用javascript。

这方面的好处是它只需要一小部分代码而不是那意味着它会表现良好。为了使其尽可能好地执行,我在x方向需要时更新标题。因为在我的情况下这通常是一个小区域,它应该足够好。

魅力的第一百倍!

fiddle

这是基本的:

HTML

<div class=grid>
    <div class=grid-canvas>
        <div class=header-wrapper>
            <table class=header></table>
        </div>
        <div class=row-wrapper>
          <table class=rows></table>
        </div>
    </div>
</div>

的Javascript

$headerDiv = $('.header-wrapper');
$rowDiv = $('.row-wrapper');
$rowDiv.scroll(function(e) {
    $headerDiv.css({
        left: -$rowDiv[0].scrollLeft + 'px'
    });
});​

CSS

.grid {
  height: 500px;
  width: 350px;
}

.grid-canvas {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.header-wrapper {
  position: absolute;
  top: 0;
  width: auto;
  background-color: white;
  z-index: 1;
}

.row-wrapper {
  position: absolute;
  top: 0;
  height: 100%;
  width: 100%;
  box-sizing: border-box;
  -moz-box-sizing: border-box;
  overflow: auto;
  padding-top: 18px;
  background-color: lightgreen;
}

th, td {
  width: 80px;
  min-width: 80px;
  max-width: 80px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

答案 1 :(得分:1)

这个怎么样,如果你想使用javascript / jQuery?

$(function(){
    $("table").stickyTableHeaders();
});

/*! Copyright (c) 2011 by Jonas Mosbech - https://github.com/jmosbech/StickyTableHeaders
    MIT license info: https://github.com/jmosbech/StickyTableHeaders/blob/master/license.txt */

;(function ($, window, undefined) {
    'use strict';

    var pluginName = 'stickyTableHeaders';
    var defaults = {
            fixedOffset: 0
        };

    function Plugin (el, options) {
        // To avoid scope issues, use 'base' instead of 'this'
        // to reference this class from internal events and functions.
        var base = this;

        // Access to jQuery and DOM versions of element
        base.$el = $(el);
        base.el = el;

        // Cache DOM refs for performance reasons
        base.$window = $(window);
        base.$clonedHeader = null;
        base.$originalHeader = null;

        // Keep track of state
        base.isCloneVisible = false;
        base.leftOffset = null;
        base.topOffset = null;

        base.init = function () {
            base.options = $.extend({}, defaults, options);

            base.$el.each(function () {
                var $this = $(this);

                // remove padding on <table> to fix issue #7
                $this.css('padding', 0);

                $this.wrap('<div class="divTableWithFloatingHeader"></div>');

                base.$originalHeader = $('thead:first', this);
                base.$clonedHeader = base.$originalHeader.clone();

                base.$clonedHeader.addClass('tableFloatingHeader');
                base.$clonedHeader.css({
                    'position': 'fixed',
                    'top': 0,
                    'z-index': 1, // #18: opacity bug
                    'display': 'none'
                });

                base.$originalHeader.addClass('tableFloatingHeaderOriginal');

                base.$originalHeader.after(base.$clonedHeader);

                // enabling support for jquery.tablesorter plugin
                // forward clicks on clone to original
                $('th', base.$clonedHeader).click(function (e) {
                    var index = $('th', base.$clonedHeader).index(this);
                    $('th', base.$originalHeader).eq(index).click();
                });
                $this.bind('sortEnd', base.updateWidth);
            });

            base.updateWidth();
            base.toggleHeaders();

            base.$window.scroll(base.toggleHeaders);
            base.$window.resize(base.toggleHeaders);
            base.$window.resize(base.updateWidth);
        };

        base.toggleHeaders = function () {
            base.$el.each(function () {
                var $this = $(this);

                var newTopOffset = isNaN(base.options.fixedOffset) ?
                    base.options.fixedOffset.height() : base.options.fixedOffset;

                var offset = $this.offset();
                var scrollTop = base.$window.scrollTop() + newTopOffset;
                var scrollLeft = base.$window.scrollLeft();

                if ((scrollTop > offset.top) && (scrollTop < offset.top + $this.height())) {
                    var newLeft = offset.left - scrollLeft;
                    if (base.isCloneVisible && (newLeft === base.leftOffset) && (newTopOffset === base.topOffset)) {
                        return;
                    }

                    base.$clonedHeader.css({
                        'top': newTopOffset,
                        'margin-top': 0,
                        'left': newLeft,
                        'display': 'block'
                    });
                    base.$originalHeader.css('visibility', 'hidden');
                    base.isCloneVisible = true;
                    base.leftOffset = newLeft;
                    base.topOffset = newTopOffset;
                }
                else if (base.isCloneVisible) {
                    base.$clonedHeader.css('display', 'none');
                    base.$originalHeader.css('visibility', 'visible');
                    base.isCloneVisible = false;
                }
            });
        };

        base.updateWidth = function () {
            // Copy cell widths and classes from original header
            $('th', base.$clonedHeader).each(function (index) {
                var $this = $(this);
                var $origCell = $('th', base.$originalHeader).eq(index);
                this.className = $origCell.attr('class') || '';
                $this.css('width', $origCell.width());
            });

            // Copy row width from whole table
            base.$clonedHeader.css('width', base.$originalHeader.width());
        };

        // Run initializer
        base.init();
    }

    // A really lightweight plugin wrapper around the constructor,
    // preventing against multiple instantiations
    $.fn[pluginName] = function ( options ) {
        return this.each(function () {
            if (!$.data(this, 'plugin_' + pluginName)) {
                $.data(this, 'plugin_' + pluginName, new Plugin( this, options ));
            }
        });
    };

})(jQuery, window);

live demo

抱歉,我忘记了从哪里得到它。但特别感谢他/她。还有作者乔纳斯莫斯比奇。 希望,它会帮助你。谢谢。 !!

答案 2 :(得分:-1)

我编辑了你的CSS并猜测这是你想要的:

table {
  table-layout: fixed;
}

th, td {
  width: 80px;
  min-width: 80px;
  max-width: 80px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.grid {
  height: 500px;
  width: 350px;

  overflow-x: auto;
  overflow-y: scroll;
}

.grid-canvas {
  position: relative;
  width: 100%;
  height: 100%;
}

.header {
  position: absolute;
  top: 0;
  background-color: white;
  z-index: 10;
}

.row-wrapper {
  position: absolute;
  top: 0;
  width: auto;
  height: auto;
  /* assumed height of the header */
  padding-top: 18px;
  box-sizing: border-box;
  -moz-box-sizing: border-box;
  background-color: lightgreen;
}