Implement a modal Dialog box in ASP.NET web app

[Ritu Kachroo]

I need to implement a Dialog box in my Web application.

The dialog box pops up with "OK", "Show Details", "Show Image" buttons
when the user clicks a marked point on a chart. I need to pass the
numeric value of the point into the Dialog Box.
And after the user selects "Show Details" or "Show Image" buttons, I
need to pass that value into another web form to display the required
details.

How can I implement this? Can someone give me some sample code for the
javascript functions I need to incorporate in my C# code.

[Peter Rilling]

You have to do this in JavaScript using the showModalDialog function.

"Ritu Kachroo" <ri*********@gmail.com> wrote in message
news:11**********************@g43g2000cwa.googlegr oups.com...

I need to implement a Dialog box in my Web application.

The dialog box pops up with "OK", "Show Details", "Show Image" buttons
when the user clicks a marked point on a chart. I need to pass the
numeric value of the point into the Dialog Box.
And after the user selects "Show Details" or "Show Image" buttons, I
need to pass that value into another web form to display the required
details.

How can I implement this? Can someone give me some sample code for the
javascript functions I need to incorporate in my C# code.

[Ritu Kachroo]

Thanks Peter.. I know the functions to use.. am just not sure about the
implementation..
So, I need some sample code for the javascript functions.

I am currently using the following piece of code to open the popup
window:

string javStr = "<script> var
win=window.showModalDialog('popup.aspx',null,'cent er:yes;status:no;dialogWidth:425px;dialogHeight:10 0px;toolbar:yes;dialogHide:true;help:no;scroll:no' );</script>";
if(!this.IsStartupScriptRegistered("OpenWin"))
this.RegisterStartupScript("OpenWin", javStr);

But the problem with that is it opens the popup window twice!
What am I doing wrong ?

Secondly, I need to know how to pass the value of a local variable from
the parent form into the popup form.

And last, how to retrieve that value in the popup form (using
window.returnValue function).