How would i know if the window is closing?

TIA

>Hi Larry,
>
>Use the following javascript from the opened window while closing:
>
>

>window.opener.location.reload();
>

>
>
>>Hi,
>>
>>i mean how to refresh the page1.aspx after closing the Page2.aspx which i call from page1.aspx?
>>
>>
>>TIA
>>
>>>Hi Larry,
>>>
>>>This process sounds okay, except you would 'window.open("page2.aspx")' instead of page1.
>>>
>>>>Hi,
>>>>
>>>>How about this process...
>>>>
>>>>page1.aspx has datagrid and button and when the user click the button of page1.aspx i want to window.open("page1.aspx") then after closing the page2.aspx i want to refresh the datagrid from page1.aspx automatically just to see my entry in page2.aspx. (NOTE: I used session("myDS") as my container of table or temporary table or dataset).
>>>>
>>>>TIA
>>>>
>>>>
>>>>>From inside of Page 2 you could use your code below. Make sure your DataSet is small. You don't want to use up too many resources.
>>>>>
>>>>>>Hi,
>>>>>>
>>>>>>how about session("myDS") = Page2.Dataset
>>>>>>
>>>>>>TIA
>>>>>>
>>>>>>>Hi Larry,
>>>>>>>
>>>>>>>You can pass the information two different ways in ASP.NET.
>>>>>>>
>>>>>>>First you can use the Session object to pass the info. In Page2 you would save the info into a Session variable. In Page 1 you would use the session variable.
>>>>>>>
>>>>>>>in Page 2:
>>>>>>>

>>>>>>>Session["MyString"] = "my string contents";
>>>>>>>

>>>>>>>
>>>>>>>in Page 1:
>>>>>>>

>>>>>>>string YourString = Session["MyString"];
>>>>>>>if (Session["MyString"] != null)
>>>>>>>{
>>>>>>>	string Page2str = (string)Session["MyString"];
>>>>>>>	// code to process the value of the string here
>>>>>>>}
>>>>>>>

>>>>>>>
>>>>>>>
>>>>>>>The other approach is to use a querystring when calling Page 1 from Page 2. This can only be done when the string would always be less than 255 characters.
>>>>>>>
>>>>>>>in Page 2:
>>>>>>>

>>>>>>>//set the URL string to call for Page 1
>>>>>>>string Page1url = "Page1.aspx?mystring=" + "your string contents";
>>>>>>>

>>>>>>>
>>>>>>>in Page 1:
>>>>>>>

>>>>>>>string Page2str = Request.QueryString(["mystring"]);
>>>>>>>

>>>>>>>
>>>>>>>
>>>>>>>>Hi,
>>>>>>>>
>>>>>>>>ff:
>>>>>>>>
>>>>>>>>Page1.aspx --> is my main PAGE
>>>>>>>>
>>>>>>>>Page2.aspx --> the popup web form...
>>>>>>>> --> has a public property of STRNAME AS STRING
>>>>>>>>
>>>>>>>>i want to retrieve the value of Page2.aspx from Page2.aspx after the window close of Page2.aspx..
>>>>>>>>
>>>>>>>>
>>>>>>>>TIA