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Conversion between window. parent and window. opener

Source: Internet
Author: User
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1: window. parent is the parent page object called by the iframe page

Example:
A.html

 

Program code <Head> <title> parent page </title> <Body>
<Form name = "form1" id = "form1">

<Input type = "text" name = "username" id = "username"/>

</Form>
<Iframe src = "B .html" width = 100%> </iframe>
</Body>
</Html>

To assign a value to the username text box in a.htm in B .htm, for example, many upload functions. The upload function page is in Ifrmae. After the upload is successful, the uploaded path is placed in the text box of the parent page.

We should write in B .html

Program code <script type = "text/javascript">
Var _ parentWin = window. parent;
_ ParentWin. form1.username. value = "xxxx ";
</Script>

2: window. opener is a child page opened by window. open. It calls the parent page object.

A.html

Program code <script type = "text/javascript">
Function openSubWin ()
{
Var _width = 300;
Var _ height = 200;
Var _ left = (screen. width-_ width)/2;
Var _ top = (screen. height-_ height)/2;
Window. open ("B .html", null,
"Height =" + _ height + ", width =" + _ width + ", status = no, toolbar = no, menubar = no, location = no, resizable = yes, left = "+ _ left +", top = "+ _ top );
}
</Script>
<Input type = "text" name = "username" id = "username"/>
<Input type = "button" value = "pop-up subpage" onClick = "openSubWin ();">

B .html

Program code <script type = "text/javascript">
Function UpdateParent ()
{
Var _ parentWin = window. opener;
_ ParentWin. form1.username. value = "xxxx ";
}
</Script>
<Input type = "button" name = "button" id = "button" value = "update the UserName content on the home page" onClick = "UpdateParent ();">

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Related Keywords:
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