How to maintain scroll bar in a div contains treeview control

Question

0.00/5 (No votes)

See more:

Hi All,
I have a requirement based on word document load in a div along with load separated (Table of contents) in another div. Here Table of contents are binded to Treeview, then we click treeview node the div scroll top. Actual action i want wherever we click treeview node the scroll maintain there position.

please help

What I have tried:

My Code:

<div class="row">
        <div class="col-lg-3 sidenav">    
            <asp:linkbutton id="lbhome" visible="false" runat="server" text="Home" onclick="lbhome_Click">
           <asp:treeview id="TVcontents" runat="server" onselectednodechanged="TVcontents_SelectedNodeChanged" font-size="Small">
                         
           </div>
        <div class="col-lg-9 contentnav">          
             <asp:label id="marketname" runat="server" font-bold="true" font-size="XX-Large">
            <div id="pagecontent" class="pagestyle" style="height: 475px"></div>             
        </div>
    </div>

I tried MaintainScrollPositionOnPostback=true,
I tried
$(function () {
//recover the scroll postion
$("#tvDiv").scrollTop($("#HiddenScrollTop").val());
$("#tvDiv").scrollLeft($("#HiddenScrollLeft").val());
})
$(function () {
//save the scroll position
$("#tvDiv").scroll(function () {
$("#HiddenScrollLeft").val($(this).scrollLeft());
$("#HiddenScrollTop").val($(this).scrollTop());
});
})

and so many but they didn't work

Posted 15-May-19 4:28am

Member 14370202

Updated 15-May-19 17:28pm

v3

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Member 14370202 · Answer 1 · 2019-05-15T17:29:00

var IsPostBack= '<%=IsPostBack.ToString() %>';
        window.onload = function () {
            debugger;
            var strCook = document.cookie;
            if(strCook.indexOf("!~")!=0){
                var intS = strCook.indexOf("!~");
                var intE = strCook.indexOf("~!");
                var strPos = strCook.substring(intS+2,intE);
                if (IsPostBack=='True')
                {
                    document.getElementById("<%=pnlTree.ClientID %>").scrollTop = strPos;
                }
                else
                {
                    document.cookie = "yPos=!~0~!";
                }
            }
        }
        function SetDivPosition(){
            var intY = document.getElementById("<%=pnlTree.ClientID %>").scrollTop;
            document.title = intY;
            document.cookie = "yPos=!~" + intY + "~!";
        }

<asp:panel id="pnlTree" runat="server" height="462px" width="307px" scrollbars="Auto" onscroll="SetDivPosition()">
            <asp:treeview id="TVcontents" runat="server" onselectednodechanged="TVcontents_SelectedNodeChanged" font-size="Small">
            </asp:treeview>         
            </asp:panel>