如何在更新面板中从iframe调用父页面javascript

Question

What i am trying to do is i want to call a javascript function in the parent page to scroll the window to the TOP. I have one master page with a JS function "top" for scrolling page to the top, inside Master Page there is updatepanel and inside update panel there is iframe.Every time when iframe loads i want the masterpage to be on top.

Solutions i have tried:

but i am getting compile time error tht onload cant be added to iframe becz it is inside an update panel

i know my question is not very clear.still expecting some response.

Answer 1

Assumption: both the iframe and parent window are from the same domain.

You can do this to retrieve the reference to the iframe's parent DOM element:

var iframeParent = window.parent.document;

With that reference, you can access the parent's functions that are in the global scope, so in your case the "top function" for scrolling the page?