Cannot access parent variable from Iframe in CRM 2016 using turbo form mode

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Posted on by Jayakumar

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Hi,

How to access parent variable from iframe web resource in crm 2016 using turbo form. When I switched back to Legacy mode I can access the parent variable using code below.

6811.legacy.png

window.parent.myVariable

If I disable legacy form mode and switch back default turbo form mode I cannot access the parent variable. I am getting undefined error.

So the problem is due to turbo form. So is there no way to access the parent variable from iframe using turbo form?

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Daniel Wikell 2,360 on at

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With turbo forms, your custom scripts all run inside their own iframe as opposed to legacy rendering when they were loaded into the main container. Since your iframe is in the main container it means that your iframe and your scripts are both children to the main container which in turn means they are now siblings.

You can try access the sibling iframe containing your script variables by searching for it using something like this:

$(parent.document).find("iframe#customScriptsFrame")[0].contentWindow.myVariable

For this locator to work you would of course need a jQuery library loaded in your iframe. Also notable is that the snippet above is likely considered unsupported, but afaik the only way to do it.

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Jayakumar 390 on at

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Thanks Daniel. It worked using your code below.

$(parent.document).find("iframe#customScriptsFrame")[0].contentWindow.myVariable

Can we do the same way to assign the parent variable from iframe like,

$(parent.document).find("iframe#customScriptsFrame")[0].contentWindow.myVariable = "val";

Also how to call a parent function using similar method?

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Daniel Wikell 2,360 on at

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Yes, assigning the variable should also work.

The same goes for methods, you can access them the same and just slap a parenthesis pair after it to call it:

$(parent.document).find("iframe#customScriptsFrame")[0].contentWindow.myFunction()

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Jayakumar 390 on at

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Great. Thanks,

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Community Member on at

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We can add common function on Xrm.Page

ex.

function myCommonMethod(){ console.log(' My Common Method '); }

Xrm.Page['myCommonMethod'] = myCommonMethod;

No we can access this function in webresource using

ex.

var fn = parent.Xrm.Page['myCommonMethod'];

fn();

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Jayakumar 390 on at

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Thanks Hardik. I dont know this technique. I will try.

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