一、父窗口调用iframe子窗口方法
1、HTML语法:<iframe name="myFrame" src="child.html"></iframe>
2、父窗口调用 子 窗 口:myFrame.window.functionName();
3、子窗品调用 父 窗 口:parent.functionName();
说明:
子窗口调用父窗口,可以理解为在子窗口中调用的变量或函数前加个parent即可。
4、父窗口页面源码:
<html > <head > <script type = "text/javascript" > function say() { alert("parent.html------ > I'm at parent.html"); } function callChild() { //document.frames("myFrame").f1(); myFrame.window.say(); } </ script > </ head > <body > <input type = button value = "调用child.html中的函数say()" onclick = "callChild()" > <iframe name = "myFrame" src = "child.html" > </ iframe > </ body > </ html >
5、子窗口页面:
<html > <head > <script type = "text/javascript" > function say() { alert("child.html--- > I'm at child.html"); } function callParent() { parent.say(); } </ script > </ head > <body > <input type = button value = "调用parent.html中的say()函数" onclick = "callParent()" > </ body > </ html >
二、iframe 父窗口和子窗口相互的调用方法
1、IE中使用方法:
父窗口调用子窗口:iframe_ID.iframe_document_object.object_attribute = attribute_value
例 子:onClick="iframe_text.myH1.innerText='http://www.jb200.com';"
子窗口调用父 窗口:parent.parent_document_object.object_attribute = attribute_value
例 子:onclick="parent.myH1.innerText='http://www.jb200.com';"
2、Firefox中使用方法:
上面在IE下没有问题,但在firefox下不正常。在firefox下,应该是如下调用方法:
父窗口 调用 子窗 口:window.frames["iframe_ID"].document.getElementById("iframe_document_object"-).object_attribute = attribute_value
例: window.frames["iframe_text"].document.getElementById("myH1").innerHTML= "http://www.jb200.com";
子窗口 调用 父窗 口:parent.document.getElementById("parent_document_object").object_attribute = attribute_value
例: parent.document.getElementById("myH1").innerHTML = "http://www.jb200.com";
3、完整示例
1)、test.htm
<HTML > <HEAD > <TITLE > Test Page </ TITLE > <script src = "prototype-1.4.0.js" > </ script > <script language = "javascript" > function show() { window.frames["iframe_text"].document.getElementById("myH1") .innerHTML = "http://www.jb200.com" ; } </ script > </ HEAD > <BODY > <iframe height = "350" width = "600" src = "iframe_test.htm" name = "iframe_text" > </ iframe > <form action = "" method = "post" > <input name = "haha" id = "haha" type = "text" maxlength = "30" value = "haha" /> <br /> <textarea cols = "50" rows = "5" id = "getAttributeMethod" > </ textarea > <input type = "button" onClick = "show();" value = "提交" /> </ form > <h1 id = "myH1" > d </ h1 > </ BODY > </ HTML >
2)、frame_test.htm
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns = "http://www.w3.org/1999/xhtml" > <head > <meta http-equiv = "Content-Type" content = "text/html; charset=gb2312" /> <title > 无标题文档 </ title > </ head > <script language = "javascript" > function show() { parent.document.getElementById("myH1") .innerHTML = http://www.jb200.com; } </ script > <body > <h1 id = "myH1" > ha </ h1 > <form action = "" method = "post" > <input name = "abc" id = "abc" type = "text" maxlength = "30" value = "abc" /> <br /> <textarea cols = "50" rows = "10" id = "text" > </ textarea > <br /> <input type = "button" value = "提交" onclick = "show();" /> </ form > </ body > </ html >
test.htm里面firefox下访问iframe 必须用name,不能用id,所以要改为name="iframe_test" 。
三、在c#中如何动态改变iframe的src值,动态指向一个网页
1,javascript脚本
给iframe加一个ID如<iframe id=frmList……
在脚本中:
frmList.document.location=strNewUrl
2,后台程序
给iframe加一个ID,再加上runat=server 如<iframe id=frmList runat=server ……
在程序中加入:
frmList.Attributes.Add("src",strNewUrl);