用一个滚动条滚动两个 div (javascript)

Question

假设我们在一个页面上有两个 div，在 aspx 页面中预先创建。两者都应该水平滚动。但是只有其中一个可以有滚动条，第二个div不应该有滚动条。

当您使用滚动条滚动 div1 时，一些 javascript 函数应该同样滚动 div2，即设置 div2 的滚动位置等于滚动位置div1 个。它应该完全同时完成，这样用户就不会在两次 div 滚动之间看到任何延迟。

怎么办？

Answer 1

/*jQuery(function ($) {
    $(".container").on("scroll", function () {
        $(".container").scrollTop($(this).scrollTop());
    });
});*/


var elems = document.getElementsByClassName("container");


function foo() {
    var top = this.scrollTop;

    for (i = 0; i < elems.length; i++) {
        elems[i].scrollTop=top;
    }
}

for (i = 0; i < elems.length; i++) {
    elems[i].addEventListener("scroll", foo);
}

.container {

    height:400px;

    overflow-y:scroll;

    width:200px;

    background:Red;

    float:left;

}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="parent">
    <div class="container">Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of "de Finibus Bonorum et Malorum" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, "Lorem ipsum dolor sit amet..", comes from a line in section 1.10.32. The standard chunk of Lorem Ipsum used since the 1500s is reproduced below for those interested. Sections 1.10.32 and 1.10.33 from "de Finibus Bonorum et Malorum" by Cicero are also reproduced in their exact original form, accompanied by English versions from the 1914 translation by H. Rackham.</div>
    <div class="container">Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of "de Finibus Bonorum et Malorum" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, "Lorem ipsum dolor sit amet..", comes from a line in section 1.10.32. The standard chunk of Lorem Ipsum used since the 1500s is reproduced below for those interested. Sections 1.10.32 and 1.10.33 from "de Finibus Bonorum et Malorum" by Cicero are also reproduced in their exact original form, accompanied by English versions from the 1914 translation by H. Rackham.</div>
</div>

试试这个：- http://jsfiddle.net/pLyrqxfj/

JS:-

jQuery(function ($) {
    $(".container").on("scroll", function () {
        $(".container").scrollTop($(this).scrollTop());
    });
});

HTML:-

<div class="parent">
    <div class="container">Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of "de Finibus Bonorum et Malorum" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, "Lorem ipsum dolor sit amet..", comes from a line in section 1.10.32. The standard chunk of Lorem Ipsum used since the 1500s is reproduced below for those interested. Sections 1.10.32 and 1.10.33 from "de Finibus Bonorum et Malorum" by Cicero are also reproduced in their exact original form, accompanied by English versions from the 1914 translation by H. Rackham.</div>
    <div class="container">Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of "de Finibus Bonorum et Malorum" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, "Lorem ipsum dolor sit amet..", comes from a line in section 1.10.32. The standard chunk of Lorem Ipsum used since the 1500s is reproduced below for those interested. Sections 1.10.32 and 1.10.33 from "de Finibus Bonorum et Malorum" by Cicero are also reproduced in their exact original form, accompanied by English versions from the 1914 translation by H. Rackham.</div>
</div>

CSS:-

.container {

    height:400px;

    overflow-y:scroll;

    width:200px;

    background:Red;

    float:left;

}

编辑：-

纯JavaScript:-

var elems = document.getElementsByClassName("container");


function foo() {
    var top = this.scrollTop;

    for (i = 0; i < elems.length; i++) {
        elems[i].scrollTop=top;
    }
}

for (i = 0; i < elems.length; i++) {
    elems[i].addEventListener("scroll", foo);
}

JSFiddle

用一个滚动条滚动两个 div (javascript)

Scroll two divs with one srollbar (javascript)

javascript

asp.net

scroll

position

试试这个：- http://jsfiddle.net/pLyrqxfj/

编辑：-