Pass data from child window to parent window in javascript

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Hello,
I tried to pass data from child window to parent window using javascript but parent.returnvalue is not working in chrome. Is there any alternative of parent.returnvalue??

JavaScript

var txtfolioID = document.getElementById('<%= txtfolioID.ClientID %>');
var txtfolioName = document.getElementById('<%= txtfolioName.ClientID %>');

var ret = new Array(Number(txtfolioID.value),
                  txtfolioName.value);

parent.returnValue = ret;

Please help

What I have tried:

I tried

JavaScript

var opener = window.opener;
if (opener) {
 var oDom = opener.document;
 var elem = oDom.getElementById("txtfolio");
   if (elem) {
       elem.value = 'Success';
   }
 }

but still, the child window value doesn't set to parent window.

Console error

JavaScript

Uncaught TypeError: parent.setFolio is not a function
    at OnChoose (Portfolios.aspx?ResourceID=0:187)
    at HTMLInputElement.onclick (Portfolios.aspx?ResourceID=0:1)

EDITED CODE

JavaScript

var opener = window.opener;
                        if (opener) {
                            opener.setFolio(Number(txtPortfolioID.value),
                                txtPortfolioName.value);
                        }

still it's not working

Posted 9-Jan-22 18:08pm

Member 14362033

Updated 10-Jan-22 3:37am

v6

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Richard Deeming · Answer 1 · 2022-01-09T22:20:00

The returnValue reference looks odd to me. That's either associated with a dialog element, which is still experimental, or the showModalDialog method, which is no longer supported in any modern browser.

If by "child window" you mean you've embedded one page inside another using an iframe, you should be able to create a function in the parent window and call that from the child window:

JavaScript

/* Parent window: */
window.setFolio = function(folioID, folioName) {
    document.getElementById("txtfolio").value = folioName;
};

JavaScript

parent.setFolio(Number(txtfolioID.value), txtfolioName.value);

NB: Both documents will need to be served from the same origin (protocol, host name, and port number) for the call to work. If you need to make a cross-origin call, you would need to use postMessage[^] instead.