添加一个新类DataGridHelper,用于更新datagrid

UserClass/DataGridHelper.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Controls;
+using System.Windows;
+
+namespace formula_manage.UserClass
+{
+    public static class DataGridHelper
+    {
+        public static void SetRealTimeCommit(DataGrid dataGrid, bool isRealTime)
+        {
+            dataGrid.SetValue(RealTimeCommitProperty, isRealTime);
+        }
+
+        public static bool GetRealTimeCommit(DataGrid dataGrid)
+        {
+            return (bool)dataGrid.GetValue(RealTimeCommitProperty);
+        }
+
+        public static readonly DependencyProperty RealTimeCommitProperty =
+        DependencyProperty.RegisterAttached("RealTimeCommit", typeof(bool),
+        typeof(DataGridHelper),
+        new PropertyMetadata(false, RealTimeCommitCallBack));
+
+        private static void RealTimeCommitCallBack(DependencyObject d, DependencyPropertyChangedEventArgs e)
+        {
+            var dg = d as DataGrid;
+            if (dg == null)
+                return;
+            EventHandler<DataGridCellEditEndingEventArgs> ceHandler = delegate (object xx, DataGridCellEditEndingEventArgs yy)
+            {
+                var flag = GetRealTimeCommit(dg);
+                if (!flag)
+                    return;
+                var cellContent = yy.Column.GetCellContent(yy.Row);
+                if (cellContent != null && cellContent.BindingGroup != null)
+                    cellContent.BindingGroup.CommitEdit();
+            };
+            dg.CellEditEnding += ceHandler;
+            RoutedEventHandler eh = null;
+            eh = (xx, yy) =>
+            {
+                dg.Unloaded -= eh;
+                dg.CellEditEnding -= ceHandler;
+            };
+            dg.Unloaded += eh;
+        }
+    }
+}