JavaScript showModalDialog 模态窗口传值完整示例

父窗口实现代码

parent.html

 
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>父窗口</title>
<script type="text/javascript">
window.onload=function(){
var btn=document.getElementById("btn");
btn.onclick=function(){
var obj={
test:"张三传到子窗口",
win:window
}; 
}; var returnValue = window.showModalDialog("child.html",obj,"dialogLeft:100px;dialogTop:100px;dialogWidth:400px;dialogHeight:300px;resizable:yes");
if(returnValue != null){
document.getElementById("content").innerHTML = returnValue;
} 
}; 
} 
}</script>
</head>
<body>
<div id="content" style="margin:50px;width:100px;height:150px;border:5px solid #0000ff;"></div>
<input type="button" id="btn" value="弹出子窗口">
</body>
</html>

子窗口实现代码

child.html

 
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>子窗口</title>
<script type="text/javascript">
window.onload=function(){
//获取url的传参
var args = window.dialogArguments;
var win = args.win;//父窗口对象
var content=document.getElementById("content");
content.value=args.test;
var btn=document.getElementById("btn");
btn.onclick=function(){
//模态对话框将值
window.returnValue = content.value;
window.close();
} 
} 
}</script>
</head>
<body>
<input type="text" id="content"><input type="button" id="btn" value="传值给父窗口">
</body>
</html>