Bootstrap data-dismiss in VB

I've like to close a bootstrap modal from VB code after an button click event.  Does anyone know how to do this?

<asp:Button ID="Button4" runat="server" Text="Close Window" CssClass="btn btn-default" data-dismiss="modal" />

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Julian HansenCommented:
You can't "close" an HTML modal from code behind - you have to do it from javascript within the browser.

What you have to do is link some javascript to your button click and have that close the window.

Using JQuery something like this
<script type="text/javascript">
$(function() {
  $('#<%= Button4.Clientid%>').click(function() {

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Replace the MODALWINDOWID with the ID of your modal window.

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