wpf: Added new UpdateRow function for grids, that loads an entity from the database

inabox.wpf/DynamicGrid/Grids/DynamicDataGrid.cs

@@ -346,17 +346,6 @@ public class DynamicDataGrid<TEntity> : DynamicGrid<TEntity>, IDynamicDataGrid w
         DoChanged();
     }
 
-    private object GetPropertyValue(Expression member, object obj)
-    {
-        var objectMember = Expression.Convert(member, typeof(object));
-
-        var getterLambda = Expression.Lambda<Func<object>>(objectMember);
-
-        var getter = getterLambda.Compile();
-
-        return getter();
-    }
-
     protected override void ObjectToRow(TEntity obj, CoreRow row)
     {
         foreach (var column in Data.Columns)
@@ -369,6 +358,21 @@ public class DynamicDataGrid<TEntity> : DynamicGrid<TEntity>, IDynamicDataGrid w
         }
     }
 
+    /// <summary>
+    /// Update the <paramref name="row"/> by reloading the data from the database.
+    /// </summary>
+    public void UpdateRow(CoreRow row, bool invalidate = true)
+    {
+        var refreshedEntity = Client.Query(
+            GetRowFilter(row),
+            DataColumns())
+            .ToObjects<TEntity>().FirstOrDefault();
+        if(refreshedEntity is not null)
+        {
+            UpdateRow(row, refreshedEntity, invalidateRow: invalidate);
+        }
+    }
+
     public override void LoadEditorButtons(TEntity item, DynamicEditorButtons buttons)
     {
         base.LoadEditorButtons(item, buttons);
@@ -548,7 +552,7 @@ public class DynamicDataGrid<TEntity> : DynamicGrid<TEntity>, IDynamicDataGrid w
         }
 
         var grid = new DynamicDataGrid<TEntity>();
-        return grid.EditItems(new[] { item }, t => children.ContainsKey(t) ? children[t] : null, true);
+        return grid.EditItems([item], t => children.TryGetValue(t, out CoreTable? value) ? value : null, true);
     }
 
     private bool MergeClick(Button arg1, CoreRow[] rows)
@@ -643,7 +647,7 @@ public class DynamicDataGrid<TEntity> : DynamicGrid<TEntity>, IDynamicDataGrid w
 
     protected override IEnumerable<TEntity> LoadDuplicatorItems(CoreRow[] rows)
     {
-        return rows.Select(x => x.ToObject<TEntity>());
+        return rows.ToObjects<TEntity>();
     }
 
     protected override bool BeforeCopy(IList<TEntity> items)
@@ -659,38 +663,6 @@ public class DynamicDataGrid<TEntity> : DynamicGrid<TEntity>, IDynamicDataGrid w
         return true;
     }
 
-    protected override void CustomiseExportFilters(Filters<TEntity> filters, CoreRow[] visiblerows)
-    {
-        base.CustomiseExportFilters(filters, visiblerows);
-
-        /*if (IsEntity)
-        {
-            var ids = visiblerows.Select(r => r.Get<TEntity, Guid>(c => c.ID)).ToArray();
-            filters.Add(Filter<TEntity>.Where(x => x.ID).InList(ids));
-        }
-        else
-        {
-            Filter<TEntity>? filter = null;
-
-            foreach (var row in visiblerows)
-            {
-                var rowFilter = GetRowFilter(row);
-                if(rowFilter is not null)
-                {
-                    if (filter is null)
-                    {
-                        filter = rowFilter;
-                    }
-                    else
-                    {
-                        filter.Or(rowFilter);
-                    }
-                }
-            }
-            filters.Add(filter);
-        }*/
-    }
-
     protected override IEnumerable<Tuple<Type?, CoreTable>> LoadExportTables(Filters<TEntity> filter, IEnumerable<Tuple<Type, IColumns>> tableColumns)
     {
         var queries = new Dictionary<string, IQueryDef>();
@@ -719,9 +691,11 @@ public class DynamicDataGrid<TEntity> : DynamicGrid<TEntity>, IDynamicDataGrid w
 
             if (property != null)
             {
-                var subQuery = new SubQuery<TEntity>();
-                subQuery.Filter = filter.Combine();
-                subQuery.Column = new Column<TEntity>(x => x.ID);
+                var subQuery = new SubQuery<TEntity>
+                {
+                    Filter = filter.Combine(),
+                    Column = new Column<TEntity>(x => x.ID)
+                };
 
                 queryFilter = (Activator.CreateInstance(typeof(Filter<>).MakeGenericType(tableType)) as IFilter)!;
                 queryFilter.Property = property.Name + ".ID";