/// <summary>
        /// Extract all style properties of the element
        /// </summary>
        public static IDictionary <String, String> Css(this HElement element)
        {
            String style  = element.Attr("style");
            var    result = new Dictionary <String, String>(StringComparer.OrdinalIgnoreCase);

            if (!String.IsNullOrWhiteSpace(style))
            {
                // Split style
                String[] parts = style.Split(new Char[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
                foreach (var part in parts)
                {
                    String name, value;
                    int    p = part.IndexOf('=');
                    if (p < 0)
                    {
                        name  = part;
                        value = String.Empty;
                    }
                    else
                    {
                        name  = part.Substring(0, p);
                        value = part.Substring(p + 1);
                    }
                    result[ConvertCamelNameToStyleName(name)] = value;
                }
            }
            return(result);
        }
 /// <summary>
 /// Set one or more attributes from a POCO objet for the element.
 /// </summary>
 public static HElement Attr(this HElement element, Object attributes)
 {
     if (element != null && attributes != null)
     {
         foreach (var member in attributes.GetType().GetMembers().Where(m => m is PropertyInfo || m is FieldInfo))
         {
             String mName = member.Name.Replace("_", "-");
             if (member is PropertyInfo)
             {
                 element.Attr(mName, Convert.ToString(((PropertyInfo)member).GetValue(attributes, null)));
             }
             else if (member is FieldInfo)
             {
                 element.Attr(mName, Convert.ToString(((FieldInfo)member).GetValue(attributes)));
             }
         }
     }
     return(element);
 }
 /// <summary>
 /// Apply style to an element
 /// </summary>
 static void SetStyle(HElement element, IDictionary <String, String> properties)
 {
     if (element != null && properties != null)
     {
         element.Attr(
             "style",
             String.Join(
                 ";",
                 properties
                 .Where(kvp => !String.IsNullOrWhiteSpace(kvp.Value))
                 .Select(kvp => String.Concat(kvp.Key, "=", kvp.Value))
                 )
             );
     }
 }
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 /// <summary>
 /// Remove a list of data values to an element
 /// </summary>
 public static HElement RemoveData(this HElement element, params String[] keys)
 {
     if (element != null)
     {
         // Build the key list from the context
         if (keys != null && keys.Length > 0)
         {
             // Convert all keys to data keys
             keys = keys.Select(k => MakeDataKey(k)).ToArray();
         }
         else
         {
             // Extract all data keys
             keys = element.Attributes().Where(attr => attr.Name.StartsWith("data-", StringComparison.OrdinalIgnoreCase)).Select(attr => attr.Name).ToArray();
         }
         foreach (var key in keys)
         {
             element.Attr(key, null);
         }
     }
     return(element);
 }
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 /// <summary>
 /// Set a data value to an element
 /// </summary>
 public static HElement Data(this HElement element, String key, String value)
 {
     return(element.Attr(MakeDataKey(key), value));
 }
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 /// <summary>
 /// Retrieve a data value from an element
 /// </summary>
 public static String Data(this HElement element, String key)
 {
     return(element.Attr(MakeDataKey(key)));
 }