Hi

This is what I've done in the past - unsure what version you're using so there might be a better way.

I create the following class (I"ve called my 'theme' but can call it whatever you like) and place the file in the app_code folder, this produces a pre-populated dropdown list of colours (the value being the colour code) which appears as an available macro parameter type :

NOTE: you need to manually update a table in the database (mentioned also in the code comment)

using System;
using System.Web.UI.WebControls;
using umbraco.interfaces;

namespace website.MacroParameterTypes
{
    /*
     * Need to also manually update the database:
     *   Insert into cmsMacroPropertyType(macroPropertyTypeAlias,macroPropertyTypeRenderAssembly,macroPropertyTypeRenderType,macroPropertyTypeBaseType) 
     *   values('theme','website.MacroParameterTypes','Theme','String');
     * 
     * */
    public class Theme : DropDownList, IMacroGuiRendering
    {
        private string _value;


        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);
            if (Items.Count == 0)
            {
                Items.Add(new ListItem("Teal", "20A7AD"));
                Items.Add(new ListItem("Teal Light", "74C0C1"));
                Items.Add(new ListItem("Red", "E85129"));
                Items.Add(new ListItem("Orange", "F8A81C"));
                Items.Add(new ListItem("Green", "85BB5B"));


                if (!string.IsNullOrWhiteSpace(_value))
                {
                    var item = Items.FindByValue(_value);
                    if (item != null)
                        item.Selected = true;
                }
            }
        }

        #region IMacroGuiRendering Members

        public bool ShowCaption
        {
            get { return true; }
        }

        public string Value
        {
            get
            {
                return SelectedValue;
            }
            set
            {
                _value = value;
            }
        }

        #endregion
    }

}

Sorry - just realized this probably won't work in umbraco 7 

:(

Hi Ismael

Thnaks for great response - unfortunately this is a v7 project but I'm sure I can find some examples of doing this the v7 way

Thanks

Ben

Did you find any Umbraco 7 examples?

I ask a similar question here : our.umbraco.org/forum/umbraco-7/using-umbraco-7/57439-Custom-Partial-View-Macro-parameters-(Umbraco-7)?p=0

Im gettign a 404 clicking that link Danny

Hi Ben,

Whoops, URL Copy Paste fail: http://our.umbraco.org/forum/umbraco-7/using-umbraco-7/57439-Custom-Partial-View-Macro-parameters-%28Umbraco-7%29

Thanks for looking, this is melting my brain today!

I do see Ishmail's example and this is pretty much what I'm after, exceptin Umbraco7 there's no cmsMacroPropertyType table! I beleive this is not done with attribute tags :

[PropertyEditor(Alias, "Display Name", EmbeddedResource.RootUrl + "path/markup.html", ValueType = "TEXT")] 

But I can't even get any example to show up!

is working on a reply...