Hi!

I'm developing a site where I make a lot of use of the Grid layout. I've created a number of Macros that I pass certain parameters to. This all works great, and I really love working with the Grid!

Now to my problem; I want to pass the width of the column hosting the Macro to the Macro itself. I tried doing this programmatically, but it seems you can't pass parameters to a Macro without having to create them in the database, is that right?

I've tried this:

@inherits UmbracoViewPage<dynamic>
@using Umbraco.Web.Templates


@if (Model.value != null)
{
    var columnSize = ViewData.Eval("ColWidth").ToString();  
    string macroAlias = Model.value.macroAlias.ToString();
    ViewDataDictionary parameters = new ViewDataDictionary();

foreach (dynamic mpd in Model.value.macroParamsDictionary)
{
    parameters.Add(mpd.Name, mpd.Value);
}

parameters.Add("columnSize", columnSize); // Add my own, custom parameter?

<text>
    @Umbraco.RenderMacro(macroAlias, parameters)
</text>
}

But that doesn't seem to work. The parameters collection does have two objects going in to the RenderMacro, but coming out the other side it only has the ones being created in the loop.

Is there a way to pass "hidden" parameters to a Macro without the editor having to see them?

Thank you in advance!