Closed Issue: Header text from the tab panel still shows although I have the visible false property [14897]

<script runat="server">
Sub cmdConfigContinue(ByVal sender As Object, ByVal e As System.EventArgs)
tab1.visible = true
End Sub
</script>
..............
<cc1:TabContainer ID="TabContainer1" runat="server">
<cc1:TabPanel id="tab1" visible=false HeaderText="Some title" runat="server" >
<ContentTemplate>
content
</ContentTemplate>
</cc1:TabContainer>
<asp:button runat="server" id="btnCC" onclick="cmdConfigContinue" text="Show me"/>
Comments: This ticket was filed for a pre-15.1 version of AJAX Control Toolkit. If this is still an issue in v15.1 or later, please create a new inquiry.