Server side events not fired when a Navigation control is bound via SiteMap DataSource

## HOW-TO
Fire server-side events when the control is bound to SiteMap DataSource

SOLUTION

If a Navigation control is bound to a SiteMapDataSource, the NavigateUrl property of the items will be set.
This effectively disables PostBacks (ItemClick/NodeClick/TabClick events, etc.) because the item navigates to the particular URL rather than posting back.

One of the possible solutions is to subscribe to the ItemDataBound/NodeBound/TabDataBound events and set the NavigateUrl property to an empty string. You should, however, store the NavigateUrl property somewhere (e.g. in the Value or Attributes[] properties) so you can use it later to navigate after handling ItemClick/NodeClick/TabClick events.

Here is a simple code snippet:

protected void RadMenu1_ItemDataBound(object sender, RadMenuEventArgs e)  
{  
    e.Item.Attributes["NavigateUrl"] = e.Item.NavigateUrl;  
    e.Item.NavigateUrl = "";  
}  

protected void RadMenu1_ItemClick(object sender, RadMenuEventArgs e)  
{  
    //Custom code here    

    //Navigate  
    Response.Redirect(e.Item.Attributes["NavigateUrl"].ToString());  
}