Open Modal Popup from another aspx page

Question

How do I open a Modal Popup extender from another page?

I am using a User Control to create this popup:

Usercontrol ucModalInativar.ascx:

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="ucModalInativar.ascx.cs" Inherits="Project.UserControls.ucModalInativar" %>

<ajaxToolkit:ModalPopupExtender ID="MPE" runat="server" TargetControlID="">
</ajaxToolkit:ModalPopupExtender>

Aspx Consultar.aspx:

<%@ Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="Consultar.aspx.cs" Inherits="Project.ControleAcesso.LogAcesso.Consultar" Culture="auto" meta:resourcekey="Page" UICulture="auto" %>
....
<asp:Button ID="btnAbrir" ClientIDMode="Static" CssClass="btn azul margT20" runat="server" Text="Abrir Modal" />
....

Master Page Site.Master:

...
<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
    <ContentTemplate>
        <asp:ContentPlaceHolder ID="MainContent" runat="server">
        </asp:ContentPlaceHolder>
        <uc1:ucModalInativar runat="server" ID="ucModalInativar2" />
    </ContentTemplate>
</asp:UpdatePanel>
...

I know that "TargetControlID" has to be filled with some component of the page, but since it is user control, it is being implemented on the Site.Master, and this button is from another page.

How do I click on btnAbrir, the modal extender opens?

Answer 1

You can expose yourself modal component in masterpage as a property. So you can access this component of the content pages.

Look at this link: http://msdn.microsoft.com/en-us/library/vstudio/xxwa0ff0(v=vs.100). aspx