添加一个新类DataGridHelper,用于更新datagrid

MainWindow.xaml

@@ -71,7 +71,7 @@
         <TextBox x:Name="Anew" HorizontalAlignment="Left" Height="30" Margin="300,35,0,0" TextWrapping="Wrap" Text="0" VerticalAlignment="Top" Width="30" FontSize="20" 
                  MaxLines="1" MaxLength="2" PreviewTextInput="Tb_KeyPress" InputMethod.IsInputMethodEnabled="False" Focusable ="False"/>
         <TextBox HorizontalAlignment="Left" Height="30" Margin="95,105,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="200" FontSize="20" KeyUp="SearchBox_OnKeyDownd" IsTabStop="False"/>
-        <ComboBox x:Name="Machine" DisplayMemberPath="Name" ItemsSource="{Binding mac_Machine, Source={StaticResource MainWindowViewModel}}"     
+        <ComboBox x:Name="Machine" DisplayMemberPath="Name" ItemsSource="{Binding mac_Machine, Source={StaticResource MainWindowViewModel}}" StaysOpenOnEdit="True"   
                   HorizontalAlignment="Left" Height="30" Margin="95,140,0,0" VerticalAlignment="Top" Width="120" FontSize="20" KeyUp="SearchBox_OnKeyDownd" IsEditable="True"/>
         <ComboBox x:Name="OrderType" Text="正常单" HorizontalAlignment="Left" Height="30" Margin="95,175,0,0" VerticalAlignment="Top" Width="120" FontSize="20" IsTabStop="True" KeyUp="SearchBox_OnKeyDownd" IsEditable="True">
             <ComboBoxItem Content="正常单"></ComboBoxItem>
@@ -98,7 +98,7 @@
             <Button Content="-" HorizontalAlignment="Left" Height="15" Width="20" Margin="140,20,0,0" VerticalAlignment="Top" FontSize="10" 
                     Background="#FFF1F1F1" BorderBrush="#FFC5C5C5" Padding="0,0,0,0" IsTabStop="False" Click="Button_StepDow" Focusable ="False"/>
             <TextBlock HorizontalAlignment="Left" Height="35" Margin="170,5,0,0" TextWrapping="Wrap" Text="流程:" VerticalAlignment="Top" Width="45" FontSize="20"/>
-            <ComboBox Name="Workflow" DisplayMemberPath="DissolveName" ItemsSource="{Binding flow_Workflow, Source={StaticResource MainWindowViewModel}}"     
+            <ComboBox Name="Workflow" DisplayMemberPath="DissolveName" ItemsSource="{Binding flow_Workflow, Source={StaticResource MainWindowViewModel}}" StaysOpenOnEdit="True"    
                       HorizontalAlignment="Left" Height="30" Margin="225,5,0,0" Text="" VerticalAlignment="Top" Width="175" FontSize="20" IsEditable="True" Grid.ColumnSpan="2"/>
             <TextBlock HorizontalAlignment="Left" Height="35" Margin="0,40,0,0" TextWrapping="Wrap" Text="配方代码:" VerticalAlignment="Top" Width="90" FontSize="20"/>
             <TextBox HorizontalAlignment="Left" Height="30" Margin="90,40,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="125" FontSize="20" KeyUp="SearchBox_OnKeyDownd"/>
@@ -168,9 +168,8 @@
                             <ComboBox x:Name="CP_PRODUCT_CODE" BorderThickness="0,0,0,0"                                                  
                                       ItemsSource="{Binding stuff_Product, Source={StaticResource MainWindowViewModel}}"                                
                                       DisplayMemberPath="ProductCode"                                    
-                                      Text="{Binding PRODUCT_CODE}"
+                                      Text="{Binding PRODUCT_CODE}" IsTextSearchEnabled="True" StaysOpenOnEdit="True"
                                       BorderBrush="{x:Null}" Background="{x:Null}" IsEditable="True" KeyDown="CP_PRODUCT_CODE_KeyUp">
-                                
                             </ComboBox>
                         </DataTemplate>
                     </DataGridTemplateColumn.CellTemplate>
@@ -178,14 +177,16 @@
                 <DataGridTemplateColumn Header="目标饱和度(%)" Width="200" MaxWidth="400" MinWidth="100" >
                     <DataGridTemplateColumn.CellTemplate>
                         <DataTemplate>
-                            <TextBox x:Name="CP_CONC" BorderThickness="0,0,0,0" Text="{Binding CONC}" BorderBrush="{x:Null}" Background="{x:Null}" KeyDown="CP_CONC_KeyUp"/>
+                            <TextBox x:Name="CP_CONC" BorderThickness="0,0,0,0" Text="{Binding CONC}" 
+                                     BorderBrush="{x:Null}" Background="{x:Null}" KeyDown="CP_CONC_KeyUp"/>
                         </DataTemplate>
                     </DataGridTemplateColumn.CellTemplate>
                 </DataGridTemplateColumn>
                 <DataGridTemplateColumn Header="计算单位" Width="80"  MaxWidth="80" MinWidth="80" CellStyle="{StaticResource CellStyle}">
                     <DataGridTemplateColumn.CellTemplate>
                         <DataTemplate>
-                            <ComboBox x:Name="CP_SHIFT" BorderThickness="0,0,0,0" Text="{Binding SHIFT}" BorderBrush="{x:Null}" Background="{x:Null}" IsEditable="True" IsReadOnly="True" Focusable="True" IsTabStop="False">
+                            <ComboBox x:Name="CP_SHIFT" BorderThickness="0,0,0,0" Text="{Binding SHIFT}" 
+                                      BorderBrush="{x:Null}" Background="{x:Null}" IsEditable="True" IsReadOnly="True" Focusable="True" IsTabStop="False">
                                 <ComboBoxItem Content="%"></ComboBoxItem>
                                 <ComboBoxItem Content="g/L"></ComboBoxItem>
                             </ComboBox>

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;
+        }
+    }
+}

ViewModel/MainWindowViewModel.cs

@@ -170,7 +170,7 @@ namespace formula_manage.ViewModel
         {
             DispatcherTimer timer = new DispatcherTimer//初始化循环，每0.5秒调用一次Tick_Event
             {
-                Interval = TimeSpan.FromSeconds(0.1)
+                Interval = TimeSpan.FromSeconds(0.5)
             };
             timer.Tick += Tick_Event;
             timer.Start();

formula_manage.csproj

@@ -176,6 +176,7 @@
       <DependentUpon>Login.xaml</DependentUpon>
     </Compile>
     <Compile Include="SQLModels\STUFF_Product.cs" />
+    <Compile Include="UserClass\DataGridHelper.cs" />
     <Compile Include="UserClass\IniFile.cs" />
     <Compile Include="UserClass\PressKey.cs" />
     <Compile Include="UserClass\DataTableForToObservableCollection.cs" />