access parent page controls in i frame page

Question

5.00/5 (1 vote)

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I have a page name as test.aspx, and it contains a textbox:

<asp:TextBox ID="txtCategory" runat="server"></asp:TextBox>

and then I use a iframe page name as iframe.aspx.

Now I want to use parent page text box at iframe page,

I tried this but it not work:

XML

var movedElement = window.parent.document.getElementById(
"<%= txtCategory.ClientID %>");

and give error that txtcategory not exist in current contaxt,

I also try with Hidden field, but it also not work.
like

JavaScript

var movedElement = window.parent.document.getElementById('HiddenField1');

So, what can I do

Posted 21-Jan-13 19:01pm

Arun kumar Gauttam

Updated 21-Jan-13 23:16pm

v5

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Comments

[no name] 22-Jan-13 2:15am

http://dotnetslackers.com/Community/blogs/haissam/archive/2007/04/03/Passing-Data-Between-Parent-and-Child-window.aspx

[no name] 22-Jan-13 5:20am

Is the control in the iframe?

3 solutions

Solution 2

If you have the textbox on masterpage this will work.

JavaScript

var txtValue = window.parent.form1.txtCategory.value;

But, if you have TextBox inside ContentPlaceHolder, there are two ways:
1) Write a function in parent page that does your task and call the function from page inside iframe as:

JavaScript

parent.yourParentPageFunction();

2) Access parent page control from iframe directly and write the function on the page inside iframe to access the TextBox as:

JavaScript

alert(parent.document.getElementById("ContentPlaceHolder1_TextBox1").value);

here "ContentPlaceHolder1_TextBox1 " is the ID of the TextBox generated on parent page that you will have to find inside your page source.

Posted 22-Jan-13 1:06am

Zafar Sultan

Updated 22-Jan-13 21:30pm

v2

Comments

Zafar Sultan 23-Jan-13 3:30am

Check my updated reply.

Karthik_Mahalingam 21-Dec-14 2:30am

thanks

Solution 3

Hi,
You can do one thing. Save your parent page's TextBox element in a variable in jquery document ready function like this:

JavaScript

var textBoxElement;
$(document).ready(function(){
  textBoxElement = $("#<%# txtCategory.ClientID %>");
});

Now you will get this var named textBoxElement in your iframe page. Use this:

JavaScript

var movedElement = textBoxElement;

All javascript code will render in this same page and parent page will render before iframe's page, so you can use any javascript function or method of parent page from your iframe page.

I hope this will help you.
Thanks :)

Posted 22-Jan-13 1:16am

Sk. Tajbir

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sisir patro · Accepted Answer · 2013-01-21T23:25:00

Solution 1

HI,

The parent page control will not be able to render in the client page. But you can able to get the value of the control in any of the pages.

You need to pass the value in a session or in querystring value to the child page.

Thanks

Posted 21-Jan-13 23:25pm

sisir patro