@using System;
@using System.Linq;
@using umbraco.BusinessLogic;
@using umbraco.cms.businesslogic.web;



@{

    int pageId = umbraco.presentation.UmbracoContext.Current.PageId.Value;

    Document doc = new Document(pageId);

    var properties = doc.GenericProperties;

    var slideshowProperties = properties.Where(x => x.PropertyType.TabId == 9).ToList();

    var newprop = slideshowProperties.GroupBy(x => x.PropertyType.Alias.Substring(0, 2));

    Dictionary<String, String> PropDictionary = new Dictionary<String, String>();


    foreach (var p in newprop)
    {

        int i = 1;
        String keyvalue = "";

        foreach (var c in p)
        {
            if (i == 1)
            {
                var key = c.Value.ToString();
                PropDictionary.Add(key, null);
                keyvalue = key;
            }

            if (i == 2)
            {
                if (PropDictionary.ContainsKey(keyvalue))
                {
                    PropDictionary[keyvalue] = c.Value.ToString();
                }
            }

            i++;
        }

    }

    foreach (var key in PropDictionary)
    {
                 <p>@key.Key</p>
                 <p>@key.Value</p>
    }
}