Client Side Web Development

Re: check whether any pop up window already opened from main page?????

NC01 — Wed, 23 Jan 2008 12:18:01 GMT

bp47580:

how to retain the value during postbacks.

ptherwise how can i do this?

There is no way. You could only stop all PostBacks. You cannot place client-side window references into Session state. Give it up! Again -- there is no way to retain the window reference when a postback occurs!

NC...

Re: check whether any pop up window already opened from main page?????

kakali — Wed, 23 Jan 2008 09:29:38 GMT

Hi,

window.open has a 4th optional parameter (replace: boolean) which you can use to check whether the same window is already open or not.

var x = window.open('test.aspx', 'CustomPopUp', 'width=800, height=600,statusbar=yes ,scrollbars=yes, menubar=no, resizable=yes',true)

x.window.focus();

So if user click the link n number of time, only a single window will open.

Re: check whether any pop up window already opened from main page?????

virendra1983 — Wed, 23 Jan 2008 05:24:41 GMT

This is how you create a session variable

Session["VariableName"] = assign any value to it..as for example

Session["VariableName"] = txtbox.text;

To access session variable again use this/

if(Session["VariableName"] != null)

{

textBox2.text = Session["VariableName"];

}

It's always good to check for Session["VariableName"] exists or not...

Re: check whether any pop up window already opened from main page?????

bp47580 — Wed, 23 Jan 2008 05:15:35 GMT

but how could i implement session in my code..
plz give some code help..

Re: check whether any pop up window already opened from main page?????

virendra1983 — Wed, 23 Jan 2008 05:03:10 GMT

To retain values you can use session variables.

Re: check whether any pop up window already opened from main page?????

bp47580 — Wed, 23 Jan 2008 05:01:24 GMT

how to retain the value during postbacks.

ptherwise how can i do this?

Re: check whether any pop up window already opened from main page?????

NC01 — Tue, 22 Jan 2008 13:56:48 GMT

Add this to the aspx file

function openWindow(windowUrl)
{
if ( childWindow != null && childWindow.closed == false)
{
childWindow.close();
childWindow = null;
}

childWindow = window.open(windowUrl, 'CustomPopUp', 'width=800, height=600,statusbar=yes ,scrollbars=yes, menubar=no, resizable=yes')
}
</script>"

Change your script rendering in the CodeBehind file to:

Dim javaScript As String = "<script type=text/JavaScript>openWindow('" + ConfigurationManager.AppSettings("ActionTypeURL4") + '");</script>"
RegisterStartupScript("OpenWindowScript", javaScript)

Note that RegisterStartupScript has changed since version 1.1 and you will get a compiler warning with the above. See http://msdn2.microsoft.com/en-us/library/system.web.ui.clientscriptmanager.aspx for more info.

Also note that if a PostBack occurs, you will lose your window refernce and this will not work.

NC...

Re: check whether any pop up window already opened from main page?????

bp47580 — Tue, 22 Jan 2008 13:37:19 GMT

but its not working..

Re: check whether any pop up window already opened from main page?????

virendra1983 — Tue, 22 Jan 2008 11:48:20 GMT

Hi,

Try this

gstrPopupScript = "<script language='javascript'>" & "if(new_window==null || new_window.Closed) { new_window=window.open('" & ConfigurationManager.AppSettings("ActionTypeURL4") & "', 'CustomPopUp', " & "'width=800, height=600,statusbar=yes ,scrollbars=yes, menubar=no, resizable=yes') } else { new_window.window.focus(); return false; }" & "</script>"
ClientScript.IsStartupScriptRegistered(gstrPopupScript)
Response.Write(gstrPopupScript)

And put this javascript in your code

var new_window = null;

</script>

Re: check whether any pop up window already opened from main page?????

bp47580 — Tue, 22 Jan 2008 10:52:49 GMT

but the fact is that..
if i use a variable in aspx.vb file...during opening a pop up...like
gstrPopupScript = "<script language='javascript'>" & "new_window=window.open('" & ConfigurationManager.AppSettings("ActionTypeURL4") & "', 'CustomPopUp', " & "'width=800, height=600,statusbar=yes ,scrollbars=yes, menubar=no, resizable=yes')" & "</script>"
ClientScript.IsStartupScriptRegistered(gstrPopupScript)
Response.Write(gstrPopupScript)

can i access that variable(i.e: new_window) in script in aspx page source to close that form..
then how....try to answer this according to my code...

Re: check whether any pop up window already opened from main page?????

virendra1983 — Tue, 22 Jan 2008 10:45:37 GMT

hi,

This is how I have checked..

var childRef = null;

function UserAddress(page)

{ if (childRef == null || childRef.closed)

{

childRef = window.open(page , '','width = 550, height =500 ,top = 100, left = 260,status=1,resizable=0,scrollbars=1,addressbar=0,modal=1');

}

else

childRef.window.focus();

return false;

}

Mark as answered if it helped you..

Re: check whether any pop up window already opened from main page?????

harsha214 — Tue, 22 Jan 2008 10:26:02 GMT

http://forums.asp.net/t/1049405.aspx

check whether any pop up window already opened from main page?????

bp47580 — Tue, 22 Jan 2008 08:33:34 GMT

i am using vs2005 and vb.net
i am using this piece of code to pop up a window(i:e a aspx page) from a main page(also a aspx page)
before opening that pop up window i want to check whether any pop up window from main page is already opened or not...
if any pop up window is already opened then close this and open pop up window again
how do i do this in vb.net....
if i can use script then help me by providing some code...

pop up window code..........
gstrPopupScript = "<script language='javascript'>" & "window.open('" & ConfigurationManager.AppSettings("ActionTypeURL4") & "', 'CustomPopUp', " & "'width=800, height=600,statusbar=yes ,scrollbars=yes, menubar=no, resizable=yes')" & "</script>"
ClientScript.IsStartupScriptRegistered(gstrPopupScript)
Response.Write(gstrPopupScript)