Question

Modal Dialog not closing properly in Web app

Asked by: wsturdev

I have a web app with the code behind in VB.Net.

At one point, when the user clicks a button I open a modal dialog, for example:
OnClientClick="var retvalue = window.showModalDialog('KTReceiverFeedbackForm.aspx','','dialogTop: 100px; dialogHeight: 475px; dialogWidth: 855px; center: yes; edge: Raised; help: no; status: no; resizable: no;'); return false;"

In my Page Load, I use this code to set up the function of my "Cancel" button, for example:
        Cancel_Button.Attributes.Add("onClick", "window.close();")

When the user clicks the Cancel button in the modal dialog, the dialog use to close properly.
 
But now, some users have migrated to IE 8.  When they click Cancel the button to close the dialog, it does the following:
1. User clicks Cancel Button
2. The dialog sort of "flashes" and then reappears but this time it has expanded in size to the same size as the parent page.
3. The user clicks the Cancel button again.
4. A dialog appears from Windows Internet Explorer: The webpage you are viewing is trying to close the window.  Do you want to close this window?  Yes or No.

How do I close the window without this annoying glitch?  Without having to tell my thousands of users to change a setting in IE, because that would be cumbersome, and I am sure they would not like to have to do that.

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Asked On
2009-08-28 at 07:51:46ID24689978
Tags

Internet Explorer 8

,

IE8

,

IE 8

Topic

Microsoft Visual Basic.Net

Participating Experts
2
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0
Comments
7

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Answers

 

by: ProtuhjPosted on 2009-08-28 at 11:02:09ID: 25210099

It is possible that it is a bug in IE8.

 

by: ProtuhjPosted on 2009-08-28 at 11:08:20ID: 25210149

 

by: CodeCruiserPosted on 2009-08-28 at 17:46:49ID: 25212568

I think it has to do with the security settings. I think i came across this using IE7 (may be IE6) as well.

 

by: wsturdevPosted on 2009-08-31 at 05:23:21ID: 25222178

This is only happening since I upgraded to IE8.  It did not happen in IE7.

 

by: wsturdevPosted on 2009-09-02 at 06:57:04ID: 25241091

Protujh -- I looked at your referenced link.  In post 77 was an example that said it worked for all IE versions.  I set my code up within VB as in the attached.  I get a build error in the top.window.open.  How can I correct that?

In addition, I want to be sure this code does not reopen the parent.  I just want to close the modal dialog form I have open without triggering an kind of postback on the parent.

Cancel_Button.Attributes.Add("onClick", "top.window.opener = top;top.window.open(,_parent,);top.window.close();")

                                              
1:

Select allOpen in new window

 

by: wsturdevPosted on 2009-09-03 at 10:35:11ID: 25252940

I solved it!!

Include an HTML tag in the modal dialog as follows:
<base target="_self">
</base>

Here are the 3 elements I used in combination to call a modal dialog and close it without the extra Windows warning dialog.  This works with IE8 and IE7 (I have no way to test IE6 or IE5).

1.  The tag for the button that calls the modal dialog:
<asp:Button ID="CallModalDialogBtn" runat="server" Font-Names="Arial" Font-Size="8pt"
Height="19px" OnClientClick="var retvalue = window.showModalDialog('MyModalDialog.aspx','','dialogTop: 100px; dialogHeight: 475px; dialogWidth: 855px; center: yes; edge: Raised; help: no; status: no; resizable: no;'); return false;"
Text="Call Modal Dialog" Width="60px" />

2. The VB in the modal dialog Page_Load:
Cancel_Button.Attributes.Add("onclick", "window.close();")

or, if you need to save data, in the VB code behind for the Save button, you could do

Save_Data()
Response.Write("<script language='javascript'> { window.close();}</script>")

3. In the HTML for the modal dialog:
<%@ Page Language="vb" AutoEventWireup="false" Codebehind="MyModalDialog.aspx.vb" Inherits="MyWebModule.MyModalDialog" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
    <HEAD>
        <base target="_self">
        </base>

 

by: ProtuhjPosted on 2009-09-03 at 10:41:27ID: 25252998

Good to hear!

20120131-EE-VQP-002

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