Ajax计时器滚动条 [英] ajax timer scrollbar

问题描述

你好
我有一个带有水平滚动条的多行文本框.
并且有一个计时器，它每3秒就会从数据库中获取数据，我的问题是:每次计时器从数据库中获取数据时，滚动条的位置都会移动，该怎么办?，
我将很感激地回答我

Hello
I have a multiline textbox with horizontal scroll bar.
And have a timer that will get data from database every 3 seconds, my problem is: every time the timer get data from database the position of the scrollbar will be moved, What Can I Do?,
I would be gratitude answer me

推荐答案

尝试以声明方式将页面上的MaintenanceScrollPositionOnPostBack属性设置为:

Try the declaratively setting MaintainScrollPositionOnPostBack property on your page as:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="test.aspx.cs"     Inherits="test" MaintainScrollPositionOnPostback="true" %>

或者，将以下脚本放在页面上的ScriptManager之后.而且由于PageRequestManager的_endRequest事件是在呈现页面之前发生的，所以您甚至都不会看到您的项目移动.

As an alternative, place the following script after the ScriptManager on your page. And since the _endRequest event of the PageRequestManager happens before the page is rendered, you’ll never even see your item move.

<script type="text/javascript">
    var xPos, yPos;
    var prm = Sys.WebForms.PageRequestManager.getInstance();
    prm.add_beginRequest(BeginRequestHandler);
    prm.add_endRequest(EndRequestHandler);
    function BeginRequestHandler(sender, args) {
        xPos =

get('scrollDiv').scrollLeft; yPos =

get('scrollDiv').scrollLeft; yPos =

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