How to Show Modal Window with respect to Screen instead of it's parent Control

[AVGSNaidu]

Hi,

we have developing the application like Ext.net example site https://examples2.ext.net/ , to load the Pages as tab items (Cross option for close the tab) when clikc on any link, and in one page we have loaded on gridPanel and
when i click on Grid row,i am Showing the details of selected row using One Usercontrol(.ascx) in Model window as following,


<ext:Window runat="server" Width="550" Height="300" ID="WinFormBankedTime" AutoScroll="true"
Title="Request Information" Resizable="false" Hidden="True" Modal="True">
<Content>
<uc2:WindowBank ID="ucBankedTimePending" runat="server" />
</Content>
</ext:Window>

It displaying the Model window in only that parent Page ( with respect to Loaded tab).

if the Window Height is more than the parent page,the parent page design becomes ugly i.e it's top become collapsed and hide the Title and option to close the tab(page).




If the height of the window is reduced it's working fine.
please provide the required suggestions to handle this issue and how to Show the window with respect to Screen instead of it's parent control.


Thank you.