private static void SetViewdataWithValues(CascadingDropDownAttribute attr, string name, IDictionary <string, object> viewData, params object[] values)
        {
            var viewDataKey = "DDKey_" + name;

            viewData[viewDataKey] = viewData[viewDataKey] ?? attr.GetMethodResult(values);
        }
 private static void SetViewdataWithValues(CascadingDropDownAttribute attr, string name,
     IDictionary<string, object> viewData, params object[] values)
 {
     var viewDataKey = "DDKey_" + name;
     viewData[viewDataKey] = viewData[viewDataKey] ?? attr.GetMethodResult(values);
 }