server/AyaNova/models/dto/DataListSelection.cs

@@ -1,7 +1,10 @@
+using System.Threading.Tasks;
 using AyaNova.Biz;
-using Newtonsoft.Json.Linq;
 namespace AyaNova.Models
 {
+    //Used to drive processes that rely on selections made at client from a datalist
+    //either a preselected list of id's or a datalist key and listview filter object that can 
+    //be used to rehydrate a list of id's
     public class DataListSelection
     {
         public AyaType ObjectType { get; set; }
@@ -9,7 +12,18 @@ namespace AyaNova.Models
         public string DataListKey { get; set; }
         public string ListView { get; set; }//optional, if null or empty will use default list view built into DataList
 
-    }  
-
+        public bool IsEmpty
+        {
+            get
+            {
+                return SelectedRowIds.LongLength == 0 && string.IsNullOrWhiteSpace(DataListKey);
+            }
+        }
 
+        public async Task RehydrateIdList(AyContext ct, AuthorizationRoles userRoles, Microsoft.Extensions.Logging.ILogger log)
+        {
+            if (SelectedRowIds.Length == 0)
+                SelectedRowIds = await AyaNova.DataList.DataListFetcher.GetIdListResponseAsync(DataListKey, ListView, ct, userRoles, log);
+        }
+    }
 }