Devexpress ASPxPopupControl not popping up

For some reason, this code isn't working:

Code-Behind

protected void btnNote_Clicked(object sender, EventArgs e)
{
    DevExpress.Web.ASPxPopupControl.ASPxPopupControl notePopup = (DevExpress.Web.ASPxPopupControl.ASPxPopupControl)Master.FindControl("TaskBar").FindControl("pcNote").FindControl("notePopup");
    notePopup.ShowO开发者_高级运维nPageLoad = true;
}

.aspx (event)

<asp:Button ID="btnNote" runat="server" Text="Add Note" OnClick="btnNote_Clicked" />

I need to write a function that takes this popup control ('notePopup') and displays it, and I believe this is supposed to work, but for some reason, once the page is reloaded, there is no popup.

@Jordan, try to add the ASPxPopupControl inside the same MS UpdatePanel. In this case, I believe everything will work properly. What are your results?

I figured it out myself, although what I'm doing now I'm 100% sure I already did, and I'm not sure what else could have changed that affected my results since then, so I'm closing the question.