WPF DataGrid 绑定数据及时更新的处理

解决办法：

在列的绑定属性里加上UpdateSourceTrigger，示例XAML如下

 <DataGrid Name="dgProducts"     IsReadOnly="False" CanUserAddRows="False"   Grid.Row="1"
                   CanUserDeleteRows="False" AutoGenerateColumns="False" Hyperlink.Click="dgProducts_Click">
            <DataGrid.Columns>
                <DataGridTextColumn Header="产品编码" IsReadOnly="True"  Binding="{Binding Path=ProductNO, Mode=TwoWay}"/>
                <DataGridTextColumn Header="产品名称"  IsReadOnly="True" Width="150" Binding="{Binding Path=ProductName, Mode=TwoWay}"/>
                <DataGridTextColumn Header="规格型号" IsReadOnly="True" Width="150" Binding="{Binding Path=ProductSpec, Mode=TwoWay}"/>
                <DataGridTextColumn Header="生产数量" IsReadOnly="False"   Binding="{Binding Path=MakeNums, Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"/>
                <DataGridHyperlinkColumn Header="操作"  Width="*"   Binding="{Binding Path=PCmd}" />
            </DataGrid.Columns>
 
        </DataGrid>

UpdateSourceTrigger 枚举详细说明见
http://msdn.microsoft.com/zh-cn/library/system.windows.data.updatesourcetrigger(v=vs.95).aspx