Popup & Parent window issue(critical)

abhishekkashyap27 · April 22nd, 2010, 01:59 PM

Hi All

I am developing a web application where there is a parent window in which there are lot of textboxes and dropdowns and grid is also getting binded. I click on a button in parent window and open a popup window.

Code:

ScriptManager.RegisterStartupScript(this, GetType(), "open", "popupWin=window.open('Game.aspx?Type=" + "F0" + "&Empno=" + Empno + "&Location=" + Location + "&Vertical=" + Vertical + "&PrfCtrGrp=" + PrfCtrGrp + "&Department=" + Department + "&CostCenter=" + CostCenter + "&FromDate=" + FromDate + "&ToDate=" + ToDate + "','GAMEDETAILS', 'height=650, width=880,scrollbars=yes, resizable=yes');", true);

After the popup window gets opened, i select some records in gridview of the popup window and send it back across to parent page by using the following code:

Code:

ClientScript.RegisterStartupScript(typeof(Page), "myscript", string.Format("<script>CloseWindow('{0}');</script>", "AWD_Nomination_TOM.aspx?Mode=" + "AWD" + "&SessionId=" + SessionId +
                          "&AsLst=" + Session["ASLIST"]));

design page javascript in popup window

Code:

function CloseWindow(url)
{
    window.opener.location=url;
    self.close();
}

This works fine but what happens is that i loose the already entered textbox values etc. All entry made by the user in the parent window gets lost.
I dont want this to happen. Please advice what needs to be done and what i am missing?

chroniclemaster1 · April 23rd, 2010, 12:03 AM

The state of the controls is being lost. It sounds like you have ViewState turned off for your application. That's not necessarily bad. You probably just need to enable view state for this page. Just set EnableViewState="True" in the @Page directive. I would guess, that should do it.

abhishekkashyap27 · April 23rd, 2010, 12:37 AM

Nope, my view state is turned on. What happens is that the parent window page postbacks and load the entire controls again and inturn loosing all the entire values entered by the user earlier. Though i used session variable to store some of the control values(actually it worked) but this is crap as this is not the correct solution, what am i supposed to do if there are a lot of controls in the web page. is there any other way????

Imar · April 23rd, 2010, 11:25 AM

Isn't this by design?

Quote:

window.opener.location=url;

You're requesting a new URL which causes the browser to lose all control values and simply request a new page. Maybe you need to submit a form in the parent page instead?

Quote:

It sounds like you have ViewState turned off for your application. That's not necessarily bad. You probably just need to enable view state for this page.

With ASP.NET 2 / 3.5, this is not possible. If VIewState us turned off at the site level, you can't turn it on again at the page level. .NET 4 changes this behavior....

Cheers,

Imar

abhishekkashyap27 · May 14th, 2010, 08:13 AM

Hi Imar

I cant use .NET 4.0, i have to develop in 2.0 only, tell me any solution to the problem. I am groping in darkness...

Imar · May 14th, 2010, 08:23 AM

Take another look at my original answer:

Quote:

You're requesting a new URL which causes the browser to lose all control values and simply request a new page. Maybe you need to submit a form in the parent page instead?

In other words, don't GET a new page, but POST to the existing one.

Cheers,

Imar

abhishekkashyap27 · May 14th, 2010, 09:45 AM

Imar

Can you elaborate what exactly you mean by 'Posting' to same page. From child window, i click on submit button so that it has to go and do a postback in the parent page which is in a different window and child window needs to get closed automatically. The code which i mentioned earlier works fine but the controls in the parent page lose their value, i.e. gridview , textboxes becomes null. What exactly i am doing wrong in the code???? what am i missing?

Imar · May 14th, 2010, 09:52 AM

Quote:

i click on submit button so that it has to go and do a postback in the parent page

That's exactly what I had in mind.

However, this:

Code:

 
window.opener.location=url;

reloads the parent page, rather than reposting it.

You could try using something like this:

window.opener.document.forms[0].submit();

Imar

abhishekkashyap27 · May 14th, 2010, 10:12 AM

window.opener.document.forms[0].submit();

The above code creates a postback to the popup page rather than doing it to the parent page! Sorry, just getting little impatient. The desire to solve the problem is burning me :)

Imar · May 14th, 2010, 10:17 AM

http://www.webreference.com/js/tutorial1/opener.html

Quote:

The opener property sets or retrieves a reference to the window that created the current window.

In other words, this should submit the form in the window that created the popup - the parent window.

Imar