Currently I'm working on a project where we utilize the Parameters on a Sublayout-assignment to "attach" metadata to the sublayout. It's definitely not a standard Sitecore way to do it - however the project required this approach.
We then ran into a small problem. In Sitecore 5.3.1 there's actually no way to access the parameters from the Sublayout.... Yes way! Its a minor "left-out" by Sitecore, and they probably didn't notice it since almost no one uses the parameters.
Thanks to Kim Hornung (Sitecore) the problem was quickly resolved. Heres the solution:
1. Create a Class named "SublayoutWithParameters".
public class SublayoutWithParameters : Sublayout, IHasParameters
/// Adds the parameters.
/// <param name="parameters">The parameters.</param>
public void AddParameters(string parameters)
Parameters = parameters;
2. Replace the Sitecore class in web.config:
<!--control template="sublayout" type="Sitecore.Web.UI.SublayoutRenderingType, Sitecore.Kernel" propertyMap="Path=path" /-->
<control template="sublayout" type="MyAssembly.SublayoutWithParameters, MyAssembly" propertyMap="Path=path" />
3. Now you are able to access the Parameters passed by Sitecore in your Sublayouts:
protected override void OnInit(EventArgs e)
if (Parent is WebControl)
WebControl parent = Parent as WebControl;
// parent.Parameters is a string containing the parameters specified in Sitecore (formed as a QueryString)...
string param = HttpUtility.UrlDecode(parent.Parameters);
That should be it...