Solved

JavaScript GetElementsByClassName inside nested table or nested DIV not working

Posted on 2014-11-06
10
627 Views
Last Modified: 2014-11-12
I'm using the following code to populate a text box inside an APS.NET repeater using text on user input from other textboxes in the same repeater

<script type="text/javascript">
    window.populate_it = function populate_it(el) {
        //traverse up to the div
        var d = el.parentElement;
        // select childs 
        d.getElementsByClassName("tbPartNumber")[0].value = d.getElementsByClassName("tbGraphicID")[0].value + "-" + d.getElementsByClassName("tbSpecNumber")[0].value + d.getElementsByClassName("tbElementID")[0].value;
    }
</script>

Open in new window


<asp:Repeater ID="Repeater1" runat="server">
<ItemTemplate>
<div class="entry">
<table>
<tr>
<td>
<asp:TextBox ID="tbElementID" runat="server" class="tbElementID" name="tbElementID" oninput="populate_it(this)"></asp:TextBox><br />
<asp:TextBox ID="tbGraphicID" runat="server" class="tbGraphicID" name="tbGraphicID" oninput="populate_it(this)"></asp:TextBox><br />
<asp:TextBox ID="tbSpecNumber" runat="server" class="tbSpecNumber" name="tbSpecNumber" oninput="populate_it(this)"></asp:TextBox><br />
<asp:TextBox ID="tbPartNumber" runat="server" class="tbPartNumber" name="tbPartNumber"></asp:TextBox><br />
</td>
</tr>
</table>
</div>
</ItemTemplate>
</asp:Repeater>

Open in new window



This works fine. However, when I add the textboxes to a nested div or table, it no longer works
i.e.
<asp:Repeater ID="Repeater1" runat="server">
<ItemTemplate>
<div class="entry">
<table>
<tr>
<td>
<table>
<tr>
<td><asp:TextBox ID="tbElementID" runat="server" class="tbElementID" name="tbElementID" oninput="populate_it(this)"></asp:TextBox></td>
<tr><td>
<asp:TextBox ID="tbGraphicID" runat="server" class="tbGraphicID" name="tbGraphicID" oninput="populate_it(this)"></asp:TextBox></td>
<tr><td>
<asp:TextBox ID="tbSpecNumber" runat="server" class="tbSpecNumber" name="tbSpecNumber" oninput="populate_it(this)"></asp:TextBox></td>
<tr><td>
<asp:TextBox ID="tbPartNumber" runat="server" class="tbPartNumber" name="tbPartNumber"></asp:TextBox></td>
</tr>
</table>
</td>
</tr>
</table>
</div>
</ItemTemplate>
</asp:Repeater>

Open in new window


Why is that? How can I make this work?
0
Comment
Question by:Mike Miller
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 5
  • 4
10 Comments
 
LVL 4

Accepted Solution

by:
Ersoy Hasan earned 500 total points
ID: 40427848
see http://jsfiddle.net/qlayer/b3h7od32/
function closest(el, className) {
// find the first parent element which has className
  do {
    if (el.className.indexOf(className) > -1) {
      // tag name is found! let's return it. :)
      return el;
    }
  } while (el = el.parentNode);

  // not found :(
  return null;
}
window.populate_it = function populate_it(el) {
        //traverse up to the div
        var d = closest(el.parentElement, 'entry');
        // select childs 
        d.getElementsByClassName("tbPartNumber")[0].value = d.getElementsByClassName("tbGraphicID")[0].value + "-" + d.getElementsByClassName("tbSpecNumber")[0].value + d.getElementsByClassName("tbElementID")[0].value;
    }

Open in new window

Your html for every entry.
<div class="entry">
<table>
    <tr>
        <td>
            <table>
                <tr>
                    <td><input type="text" ID="tbElementID" class="tbElementID" name="tbElementID" oninput="populate_it(this)"></td>
                </tr>
                <tr>
                    <td>
                        <input type="text" ID="tbGraphicID" class="tbGraphicID" name="tbGraphicID" oninput="populate_it(this)">
                    </td>
                </tr>
                <tr>
                    <td>
                        <input type="text" ID="tbSpecNumber" class="tbSpecNumber" name="tbSpecNumber" oninput="populate_it(this)">
                    </td>
                </tr>
                <tr>
                    <td>
                        <input type="text" ID="tbPartNumber" class="tbPartNumber" name="tbPartNumber">
                    </td>
                </tr>
            </table>
        </td>
    </tr>
</table>
</div>

Open in new window

0
 
LVL 82

Expert Comment

by:leakim971
ID: 40427851
replace :
var d = el.parentElement;
by :
var d = el.parentElement.parentElement;
0
 
LVL 4

Expert Comment

by:Ersoy Hasan
ID: 40427860
I fixed the javascript a little:
function closest(el, className) {
  do {
    el = el.parentNode;
    if (el.className !== undefined && el.className.indexOf(className) > -1) {
      // class name is found! let's return it. :)
      return el;
    }
  } while (el.className !== undefined);

  // not found :(
  return null;
}
window.populate_it = function populate_it(el) {
        //traverse up to the div
        var d = closest(el.parentElement, 'entry');
        // select childs 
        d.getElementsByClassName("tbPartNumber")[0].value = d.getElementsByClassName("tbGraphicID")[0].value + "-" + d.getElementsByClassName("tbSpecNumber")[0].value + d.getElementsByClassName("tbElementID")[0].value;
}

Open in new window


This will work as long as you wrap your every entry (asp repeater item) in a parent element with class name 'entry'
0
Major Incident Management Communications

Major incidents and IT service outages cost companies millions. Often the solution to minimizing damage is automated communication. Find out more in our Major Incident Management Communications infographic.

 

Author Comment

by:Mike Miller
ID: 40428365
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
<script type="text/javascript">
    function closest(el, className) {
        do {
            el = el.parentNode;
            if (el.className !== undefined && el.className.indexOf(className) > -1) {
                // class name is found! let's return it. :)
                return el;
            }
        } while (el.className !== undefined);

        // not found :(
        return null;
    }
    window.populate_it = function populate_it(el) {
        //traverse up to the div
        var d = closest(el.parentElement, 'entry');
        // select childs 
        d.getElementsByClassName("tbPartNumber")[0].value = d.getElementsByClassName("tbGraphicID")[0].value + "-" + d.getElementsByClassName("tbSpecNumber")[0].value + d.getElementsByClassName("tbElementID")[0].value;
    }

</script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
        <asp:Repeater ID="Repeater1" runat="server">
        <ItemTemplate>
        <div class="entry">
        <table>
        <tr>
        <td>
        <asp:TextBox ID="tbElementID" runat="server" Wrap="False" Width="178px" 
        Font-Names="Verdana" ForeColor="#666666" BackColor="#FFFFFF" 
        BorderColor="#999999" class="tbElementID" name="tbElementID" BorderWidth="1px" oninput="populate_it(this)"></asp:TextBox>
        </td>
        </tr>
        <tr>
        <td>
        GID: <asp:TextBox ID="tbGraphicID" runat="server" Wrap="False" Width="176" Font-Names="Verdana" ForeColor="#666666" class="tbGraphicID" name="tbGraphicID" oninput="populate_it(this)"></asp:TextBox>
        </td>
        </tr>
        <tr>
        <td>
        SNL <asp:TextBox ID="tbSpecNumber" runat="server" Wrap="False" Width="176" Font-Names="Verdana" ForeColor="#666666" class="tbSpecNumber" name="tbSpecNumber" oninput="populate_it(this)"></asp:TextBox>
        </td>
        </tr>
        <tr>
        <td>
        PN:<asp:TextBox ID="tbPartNumber" runat="server" Wrap="False" Width="176" Font-Names="Verdana" ForeColor="#666666" BackColor="#FFFFFF" 
        class="tbPartnumber" name="tbPartnumber" BorderColor="#999999" BorderWidth="1px"></asp:TextBox>
        </td>
        </tr>
        </table>
        </div>
        </ItemTemplate>
        </asp:Repeater>
    </div>
    </form>
</body>
</html>

Open in new window



The above code looks like this during runtime...

     <div class="entry">
        <table>
        <tr>
        <td>
        <input name="Repeater1$ctl00$tbElementID" type="text" id="Repeater1_ctl00_tbElementID" class="tbElementID" name="tbElementID" oninput="populate_it(this)" style="color:#666666;background-color:White;border-color:#999999;border-width:1px;border-style:solid;font-family:Verdana;width:178px;" />
        </td>
        </tr>
        <tr>
        <td>
        GID: <input name="Repeater1$ctl00$tbGraphicID" type="text" id="Repeater1_ctl00_tbGraphicID" class="tbGraphicID" name="tbGraphicID" oninput="populate_it(this)" style="color:#666666;font-family:Verdana;width:176px;" />
        </td>
        </tr>
        <tr>
        <td>
        SNL <input name="Repeater1$ctl00$tbSpecNumber" type="text" id="Repeater1_ctl00_tbSpecNumber" class="tbSpecNumber" name="tbSpecNumber" oninput="populate_it(this)" style="color:#666666;font-family:Verdana;width:176px;" />
        </td>
        </tr>
        <tr>
        <td>
        PN:<input name="Repeater1$ctl00$tbPartNumber" type="text" id="Repeater1_ctl00_tbPartNumber" class="tbPartnumber" name="tbPartnumber" style="color:#666666;background-color:White;border-color:#999999;border-width:1px;border-style:solid;font-family:Verdana;width:176px;" />
        </td>
        </tr>
        </table>
        </div>
        
        <div class="entry">
        <table>
        <tr>
        <td>
        <input name="Repeater1$ctl01$tbElementID" type="text" id="Repeater1_ctl01_tbElementID" class="tbElementID" name="tbElementID" oninput="populate_it(this)" style="color:#666666;background-color:White;border-color:#999999;border-width:1px;border-style:solid;font-family:Verdana;width:178px;" />
        </td>
        </tr>
        <tr>
        <td>
        GID: <input name="Repeater1$ctl01$tbGraphicID" type="text" id="Repeater1_ctl01_tbGraphicID" class="tbGraphicID" name="tbGraphicID" oninput="populate_it(this)" style="color:#666666;font-family:Verdana;width:176px;" />
        </td>
        </tr>
        <tr>
        <td>
        SNL <input name="Repeater1$ctl01$tbSpecNumber" type="text" id="Repeater1_ctl01_tbSpecNumber" class="tbSpecNumber" name="tbSpecNumber" oninput="populate_it(this)" style="color:#666666;font-family:Verdana;width:176px;" />
        </td>
        </tr>
        <tr>
        <td>
        PN:<input name="Repeater1$ctl01$tbPartNumber" type="text" id="Repeater1_ctl01_tbPartNumber" class="tbPartnumber" name="tbPartnumber" style="color:#666666;background-color:White;border-color:#999999;border-width:1px;border-style:solid;font-family:Verdana;width:176px;" />
        </td>
        </tr>
        </table>
        </div>
        
        <div class="entry">
        <table>
        <tr>
        <td>
        <input name="Repeater1$ctl02$tbElementID" type="text" id="Repeater1_ctl02_tbElementID" class="tbElementID" name="tbElementID" oninput="populate_it(this)" style="color:#666666;background-color:White;border-color:#999999;border-width:1px;border-style:solid;font-family:Verdana;width:178px;" />
        </td>
        </tr>
        <tr>
        <td>
        GID: <input name="Repeater1$ctl02$tbGraphicID" type="text" id="Repeater1_ctl02_tbGraphicID" class="tbGraphicID" name="tbGraphicID" oninput="populate_it(this)" style="color:#666666;font-family:Verdana;width:176px;" />
        </td>
        </tr>
        <tr>
        <td>
        SNL <input name="Repeater1$ctl02$tbSpecNumber" type="text" id="Repeater1_ctl02_tbSpecNumber" class="tbSpecNumber" name="tbSpecNumber" oninput="populate_it(this)" style="color:#666666;font-family:Verdana;width:176px;" />
        </td>
        </tr>
        <tr>
        <td>
        PN:<input name="Repeater1$ctl02$tbPartNumber" type="text" id="Repeater1_ctl02_tbPartNumber" class="tbPartnumber" name="tbPartnumber" style="color:#666666;background-color:White;border-color:#999999;border-width:1px;border-style:solid;font-family:Verdana;width:176px;" />
        </td>
        </tr>
        </table>
        </div>

Open in new window



I think that's what you're saying right? This does not work.
0
 
LVL 4

Expert Comment

by:Ersoy Hasan
ID: 40428417
your class names must be exactly equal to those in javascript:
<asp:TextBox ID="tbPartNumber" runat="server" Wrap="False" Width="176" Font-Names="Verdana" ForeColor="#666666" BackColor="#FFFFFF" 
        class="tbPartnumber" name="tbPartnumber" BorderColor="#999999" BorderWidth="1px"></asp:TextBox>

d.getElementsByClassName("tbPartNumber")

Open in new window


d.getElementsByClassName("tbPartNumber")!== tbPartnumber;
It is case sensitive it is not like Visual basic
0
 

Author Comment

by:Mike Miller
ID: 40428489
Gotcha. Bad habits...

Anything stick out to you here? Still not working...

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
<script type="text/javascript">
    function closest(el, className) {
        do {
            el = el.parentNode;
            if (el.className !== undefined && el.className.indexOf(className) > -1) {
                // class name is found! let's return it. :)
                return el;
            }
        } while (el.className !== undefined);

        // not found :(
        return null;
    }
    window.populate_it = function populate_it(el) {
        //traverse up to the div
        var d = closest(el.parentElement, 'entry');
        // select childs 
        d.getElementsByClassName("tbPartNumber")[0].value = d.getElementsByClassName("tbGraphicID")[0].value + "-" + d.getElementsByClassName("tbSpecNumber")[0].value + d.getElementsByClassName("tbElementID")[0].value;
    }

</script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
        <asp:Repeater ID="Repeater1" runat="server">
        <ItemTemplate>
        <div class="entry">
        <table>
        <tr>
        <td>
        EID: <asp:TextBox ID="tbElementID" runat="server" class="tbElementID" name="tbElementID" oninput="populate_it(this)"></asp:TextBox>
        </td>
        </tr>
        <tr>
        <td>
        GID: <asp:TextBox ID="tbGraphicID" runat="server" class="tbGraphicID" name="tbGraphicID" oninput="populate_it(this)"></asp:TextBox>
        </td>
        </tr>
        <tr>
        <td>
        SNL <asp:TextBox ID="tbSpecNumber" runat="server" class="tbSpecNumber" name="tbSpecNumber" oninput="populate_it(this)"></asp:TextBox>
        </td>
        </tr>
        <tr>
        <td>
        PN:<asp:TextBox ID="tbPartNumber" runat="server" class="tbPartNumber" name="tbPartNumber"></asp:TextBox>
        </td>
        </tr>
        </table>
        </div>
        </ItemTemplate>
        </asp:Repeater>
    </div>
    </form>
</body>
</html>

Open in new window

0
 
LVL 4

Expert Comment

by:Ersoy Hasan
ID: 40428789
I cant see the problem can you share codebehind andare your running this in ie8 ?
0
 
LVL 4

Expert Comment

by:Ersoy Hasan
ID: 40428804
Here is a version of populate_it function that should work on ie8 :
  window.populate_it = function populate_it(el) {
        //traverse up to the div
        var d = closest(el.parentElement, 'entry');
        console.log(d.getElementsByClassName("tbPartNumber").length);
        // select childs 
        d.querySelectorAll(".tbPartNumber")[0].value = d.querySelectorAll(".tbGraphicID")[0].value + "-" + d.querySelectorAll(".tbSpecNumber")[0].value + d.querySelectorAll(".tbElementID")[0].value;
}

Open in new window


P.S. You still need closest function.
0
 

Author Closing Comment

by:Mike Miller
ID: 40429060
Got it. thanks again!
0
 

Author Comment

by:Mike Miller
ID: 40437761
0

Featured Post

Online Training Solution

Drastically shorten your training time with WalkMe's advanced online training solution that Guides your trainees to action. Forget about retraining and skyrocket knowledge retention rates.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

When it comes to write a Context Sensitive Help (an online help that is obtained from a specific point in state of software to provide help with that state) ,  first we need to make the file that contains all topics, which are given exclusive IDs. …
Learn by example how to specify CSS selectors for Selenium WebDriver test automation software.
The viewer will learn how to look for a specific file type in a local or remote server directory using PHP.
The viewer will learn the basics of jQuery including how to code hide show and toggles. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery…

752 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question