ASP.NET masterpage :- how to remove usercontrol from masterpage

Question

I have a masterpage which has a usercontrol ( changecity.ascx ) on it. Now I am using same master page on 2 aspx pages:

1. selectcity.aspx
2. signup.aspx

But I want to show changecity.ascx on selectcity.aspx only.

I can set it s visibility from child pages but I don't want to do that because page events of changecity.ascx` were still firing.

I want it to be completely removed from masterpage so that no events of changecity.ascx should be fired.

What i did so far :--- I removed the control from masterpage in signup.aspx 's preinit event. but page life cycle events of changecity.ascx are still firing. How can I prevent that.

Answer 1

You can try to load your control in codebehind and add it to the page. If you just try an if in the .aspx it will be renderd but just not outputted.

aspx:

<asp:placeholder id="changeCityControl" runat="server" />      

Codebehind:

ChangeCityControl ccControl = (ChangeCityControl)LoadControl("/changecity.ascx")
if (renderChangeCityControl){    
    changeCityControl.Controls.Add(ccControl);
}

See this microsoft page for details.