Whenever I attempt to open a modal popup window and then access a parent window's textbox as well as other attributes using the window.opener method, everything functions smoothly in Firefox. However, when it comes to IE8, an error is thrown stating that 'window.opener is null'. What steps can be taken to successfully access parent window attributes in the child window that are compatible with both browsers?
There are a couple of methods to tackle this issue: Note that "window.opener" is incompatible with IE when using "showModalDialog".
1) Instead of utilizing "window.showModalDialog", opt for "window.open"
2) If you prefer utilizing "window.showModalDialog", then follow these steps:
<script language="javascript" type="text/javascript">
function YourFunction()
{
var opener = null;
if (window.dialogArguments) // Internet Explorer supports window.dialogArguments
{
opener = window.dialogArguments;
}
else // Firefox, Safari, Google Chrome and Opera supports window.opener
{
if (window.opener)
{
opener = window.opener;
}
}
// write your code and reference "opener"
window.close();
}
</script>
To send arguments to the showModalDialog function, all you have to do is pass the window object as an argument.
window.showModalDialog(theURL, window);
You can retrieve the arguments from the modal window using dialogArguments. More information can be found here: http://msdn.microsoft.com/en-us/library/ms533723%28VS.85%29.aspx
var openerWindow = window.dialogArguments;
To bypass Internet Explorer's "Protected Mode" restriction that blocks access to this object, follow these steps:
After completing these steps, you should now have access to the window.opener object.
To ensure compatibility across different browsers, one workaround is to assign a custom attribute to the new window at the time of opening:
var newWindow = window.open(...);
newWindow.isNew = true;
Subsequently, in the linked page:
if (window.isNew) {
// Perform specific actions for new window
}
else {
// Not in a new window
}
My preferred approach would be as follows:
OpenWindow that detects the browser using the window.opener method.For instance:
if(window.opener == undefined) {
//This is probably not Firefox...
}
If the function identifies the method, it will use it; otherwise, it will test for the IE version and employ that. Additionally, it will verify Safari's variant, etc...
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