Hi, I have a simple Partial View Macro:

@inherits Umbraco.Web.Macros.PartialViewMacroPage
@{
    string propAlias = Model.MacroParameters["PropertyAlias"].ToString();

}
test: @propAlias

If the macro is placed in a 'regular' node (using the RTE) it executes as expected and the parameter is passed. However, I'd also like to call the macro from code as follows:

Dim mcr As New umbraco.presentation.templateControls.Macro()
     mcr.Alias = strInsertValue       
     mcr.MacroAttributes.Add("PropertyAlias", "lessonticketprice")
     mcr.RenderControl(writer)

In this case no parameter is passed and the output is only 'test:'

Is the 'Model' available in this context? If not, what should I use to get the parameter?

Thanks, Steve