The iframe height is set to the height of the child page

//You need to use Jquery
$(document).ready(function () {
parent.document.getElementById("ifPage").style.height = document.body.scrollHeight + "px";
});

The iframe height is adaptive to the parent page

//You need to use Jquery
$(window).resize(function () {
var webheight = document.body.clientHeight - X; //X is the amount of height you have to subtract, like the height of the top navigation
$("#ifPage").attr("style", "height:" + webheight + "px;");
});
$(window).load(function () {
var webheight = document.body.clientHeight - 105;
$("#ifPage").attr("style", "height:" + webheight + "px;");
});

Passing elements between parent and child pages The parent page gets the data in the child page. JS code:

//Gets the object based on the id of the iframe
var i1 = window.frames['iframeId'];
//Var iframe window. = frames [0]; Can also be
//Gets the value of the element in the iframe
var val=i1.document.getElementById("t1").value

Child page to get the data in the parent page, JS code:

var val = parent.document.getElementById("txt1");

Transfer between child pages, JS code:

var i1 = parent.window.frames['iframeId'];
var val = i1.document.getElementById("text1").value;

Refresh the parent page

function parentReload() { window.parent.location.reload();}

Reload the child page

iframe.Attributes[ "Src"] = "ItemTQEditorPage.aspx";