server/AyaNova/DataList/DataListFetcher.cs

@@ -177,7 +177,12 @@ namespace AyaNova.DataList
             //BUILD THE COLUMNS RETURN PROPERTY JSON FRAGMENT          
             Newtonsoft.Json.Linq.JArray ColumnsJSON = null;
             ColumnsJSON = DataList.GenerateReturnListColumns(dataListTableProcessingOptions.Columns);
-            return new DataListReturnData(rows, totalRecordCount, ColumnsJSON, dataListTableProcessingOptions.SortBy, dataListTableProcessingOptions.Filter.Where(z => z.Column.StartsWith("meta") == false).ToList());
+            return new DataListReturnData(rows,
+                                          totalRecordCount,
+                                          ColumnsJSON,
+                                          dataListTableProcessingOptions.SortBy,
+                                          dataListTableProcessingOptions.Filter.Where(z => z.Column.StartsWith("meta") == false).ToList(),
+                                          dataListTableProcessingOptions.HiddenAffectiveColumns);
         }
 
 

server/AyaNova/DataList/DataListReturnData.cs

@@ -9,14 +9,16 @@ namespace AyaNova.DataList
         public object Columns { get; }
         public Dictionary<string, string> SortBy { get; set; }
         public List<DataListFilterOption> Filter { get; set; }
+        public List<string> HiddenAffectiveColumns {get;set;}
 
-        public DataListReturnData(object returnItems, long totalRecordCount, Newtonsoft.Json.Linq.JArray columns, Dictionary<string, string> sortBy, List<DataListFilterOption> filter)
+        public DataListReturnData(object returnItems, long totalRecordCount, Newtonsoft.Json.Linq.JArray columns, Dictionary<string, string> sortBy, List<DataListFilterOption> filter, List<string> hiddenAffectiveColumns)
         {
             Data = returnItems;
             TotalRecordCount = totalRecordCount;
             Columns = columns;
             SortBy = sortBy;
             Filter = filter;
+            HiddenAffectiveColumns=hiddenAffectiveColumns;
         }
     }//eoc
 

server/AyaNova/models/DataListTableProcessingOptions.cs

@@ -15,6 +15,7 @@ namespace AyaNova.Models
         internal const int DefaultLimit = 25;
         internal int? Offset { get; set; }
         internal int? Limit { get; set; }
+        internal List<string> HiddenAffectiveColumns { get; set; }
 
         internal DataListTableProcessingOptions(
             DataListTableRequest request,
@@ -51,6 +52,8 @@ namespace AyaNova.Models
             foreach (DataListFilterOption dfo in StaticServerFilterOptions)
                 base.Filter.Add(dfo);
 
+            SetHiddenAffectiveColumns(dataList);
+
         }
 
         internal List<string> AllUniqueColumnKeysReferenced
@@ -62,5 +65,43 @@ namespace AyaNova.Models
             }
         }
 
+        //All columns that are hidden but are affecting the query (sorting, filtering)
+        //so in UI can show that there are hidden columns affecting the result set
+        internal void SetHiddenAffectiveColumns(IDataListProcessing dataList)
+        {
+
+            List<string> tempKeys = new List<string>();
+            foreach (string s in base.Filter.Select(z => z.Column).ToList())
+            {
+                if (!Columns.Contains(s))
+                {
+                    if (!tempKeys.Contains(s))
+                    {
+                        tempKeys.Add(s);
+                    }
+                }
+            }
+
+
+            foreach (string s in base.SortBy.Select(z => z.Key).ToList())
+            {
+                if (!Columns.Contains(s))
+                {
+                    if (!tempKeys.Contains(s))
+                    {
+                        tempKeys.Add(s);
+                    }
+                }
+            }
+
+            foreach (string s in tempKeys)
+            {
+                var fd = dataList.FieldDefinitions.Where(z => z.FieldKey == s).FirstOrDefault();
+                if (fd != null)
+                    HiddenAffectiveColumns.Add(fd.TKey);
+            }
+        }
     }
+
+
 }