How to check whether control/ function of parent page exists or not from popup window in asp.net using javascript when window.open() used.

Question

1.00/5 (1 vote)

See more:

Hi all,

How to check whether control/ function of parent page exists or not from popup window in asp.net using javascript when window.open() used.

Posted 16-Oct-14 23:47pm

Baroor

Updated 17-Oct-14 0:01am

v2

Add a Solution

Comments

Sinisa Hajnal 17-Oct-14 6:18am

Having title and text of the question doesn't make it clearer.
What do you mean if parent page exists? Are you asking how to detect if the calling page is still opened? Or how to get the control from master page? Or how to get the control from calling page?

Also, state clearly what have you tried before coming here.

Baroor 17-Oct-14 6:27am

let say say in Parent.aspx i have txtName
i used window.open() in parent page to pop up childpage.aspx to return some value to parent,
before returning i want to check whether textbox of parent is really there or not.

Sinisa Hajnal 17-Oct-14 7:07am

How could it NOT be there? If it renders with the page and you used page object to create the window it has to be there, right? If someone closes parent window there will be nothing to show so again it is not releveant what your dialog returns.

Baroor 17-Oct-14 7:09am

@Sinisa Hajnal,
Im asking how to check at child window??????????

Sinisa Hajnal 17-Oct-14 7:12am

Yes, I understand that, but I asked why (although I see now that it is not really clear :) sorry about that) ? How will it affect your dialog if it is NOT there?

Baroor 17-Oct-14 7:15am

using one parent control i poped up,now i want to bind the result to other parent control, before this i want to confirm whether sencond control in parent

Nathan Minier 17-Oct-14 7:35am

You should consider using a JavaScript Driven dialog box rather than trying to modify the contents of one window from another. what you want to do here patently doesn't work, by design, on most browsers.

Baroor 17-Oct-14 7:38am

I think u guys didnt get my requirement actually.

Sergey Alexandrovich Kryukov 17-Oct-14 15:00pm

This is only because you did not try to explain them properly.
—SA

Nathan Minier 18-Oct-14 12:32pm

I understand that you're trying to access one document from another (window.open creates a new DOM). I'm suggesting that you use a JS framework to create a dialog on the original DOM (such as jQuery dialog, or the bootstrap modal). That will allow you to use document.getElementById() or selector $("#itemid") logic.

Baroor 18-Oct-14 0:18am

@SA, i mentioned clearly

2 solutions

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)

Sebastiaan Meijerink · Answer 1 · 2015-03-24T12:45:00

Solution 2

You can find you're parent window via window.parent

You can chech for existense of the function just like you could on the window object.

Posted 24-Mar-15 12:45pm

Sebastiaan Meijerink

F-ES Sitecore · Answer 2 · 2015-03-24T15:11:00

Parent page

XML

<body>
    <form id="form1" runat="server">
    <div>
        <asp:TextBox ID="txtName" ClientIDMode="Static" runat="server" />
    </div>
    </form>

    <script type="text/javascript">
        window.open("ChildPage.aspx");
    </script>
</body>

Child page

XML

<body>
    <form id="form1" runat="server">
    <div>

    </div>
    </form>
    <script type="text/javascript">
        if (window.opener) {
            var txt = window.opener.document.getElementById("txtName");

            if (txt) {
                txt.value = "Hello from child";
            }
        }
    </script>
</body>

Note that this will work in Chrome and FireFox, but it will only work in IE if the site is in non-protected mode. If the site is a local intranet it should be in non-protected mode automatically, but if not you'll have to add the site to your list of trusted sites. To pre-empt your next questions, no you can't do this without that being configured, and no you can't force IE to trust your site.