做過(guò)WinForm數(shù)據(jù)庫(kù)開(kāi)發(fā)的人，一定有類似經(jīng)歷：DataGrid綁定后，如果允許行編輯，數(shù)據(jù)一頓修改后，想批量保存修改后的結(jié)果，通常是將DataGrid的所有行遍歷，用FindControl找出其中的TextBox之類的控件，取值，然后處理，如果行模板中的控件變化了，可能之前的處理代碼又要修改。

　　.Net發(fā)展到WPF/SL時(shí)代，有了雙向綁定，這種痛苦經(jīng)歷已經(jīng)一去不返了，我們只需要關(guān)注數(shù)據(jù)即可，GridView與數(shù)據(jù)源之間會(huì)相互通知各自的變化情況，批量保存時(shí)，不管GridView中的數(shù)據(jù)用戶如何修改，也不用去理會(huì)行模板中的控件名是啥，直接對(duì)數(shù)據(jù)源進(jìn)行處理即可。

　　Xaml示例：

<UserControl xmlns:telerik="//schemas.telerik.com/2008/xaml/presentation"  
x:Class="SLShortCut.MainPage"
     xmlns= "//schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x= "//schemas.microsoft.com/winfx/2006/xaml"
     xmlns:d= "//schemas.microsoft.com/expression/blend/2008"
     xmlns:mc= "//schemas.openxmlformats.org/markup-compatibility/2006"
     mc:Ignorable= "d"
     d:DesignHeight= "300" d:DesignWidth="400">

     <StackPanel x:Name="LayoutRoot" Background="White">
  <telerik:RadGridView  ShowGroupPanel="False" AutoGenerateColumns="False" 
x:Name="grd1" ItemsSource="{Binding Path=LstData, 
Mode=TwoWay}" SelectionMode="Extended">
             <telerik:RadGridView.Columns>
                 <telerik:GridViewSelectColumn  />
                 <telerik:GridViewColumn Header="姓名">
                     <telerik:GridViewColumn.CellTemplate>
                         <DataTemplate>
                             <TextBox x:Name="txtName" Text="{Binding Name,Mode=TwoWay}" 
VerticalAlignment="Center" Height="22"></TextBox>
                         </DataTemplate>
                     </telerik:GridViewColumn.CellTemplate>
                 </telerik:GridViewColumn>
                
                 <telerik:GridViewColumn Header="年齡">
                     <telerik:GridViewColumn.CellTemplate>
                         <DataTemplate>
                             <TextBox x:Name="txtAge" Text="{Binding Age,Mode=TwoWay}" 
VerticalAlignment="Center" Height="22"></TextBox>
                         </DataTemplate>
                     </telerik:GridViewColumn.CellTemplate>
                 </telerik:GridViewColumn>
                
                 <telerik:GridViewColumn Header="操作">
                     <telerik:GridViewColumn.CellTemplate>
                         <DataTemplate>
                             <StackPanel Orientation="Horizontal">
                                 <telerik:RadButton Content="+" Width="20" 
Height="20" VerticalAlignment="Center"  x:Name="btnAdd" Click="btnAdd_Click"/>
                                 <telerik:RadButton Content="-" Margin="5,0,0,0" 
Width="20" Height="20" VerticalAlignment=
"Center" x:Name="btnSub" Click="btnSub_Click"/>
                             </StackPanel>
                         </DataTemplate>
                     </telerik:GridViewColumn.CellTemplate>
                 </telerik:GridViewColumn>
             </telerik:RadGridView.Columns>
         </telerik:RadGridView>
         <telerik:RadButton Height="22" Width="100"  Margin="0,10,0,0" 
x:Name="btnSave" Click="btnSave_Click">全部保存</telerik:RadButton>
     </StackPanel>
</UserControl>

　　Xaml.cs部分

using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Windows;
using System.Windows.Controls;
using Telerik.Windows.Controls;

namespace SLShortCut
{
     public partial class MainPage : UserControl
     {
         PersonCollection pc = new PersonCollection();

         public MainPage()
         {
             InitializeComponent();
             this.Loaded += new RoutedEventHandler(MainPage_Loaded);
         }

         void MainPage_Loaded(object sender, RoutedEventArgs e)
         {
             pc.LstData.Add(new Person() { Name =  "張三", Age = 1 });
             pc.LstData.Add(new Person() { Name =  "李四", Age = 2 });

             this.DataContext = pc;
         }

         private void btnAdd_Click(object sender, RoutedEventArgs e)
         {
             pc.LstData.Add(new Person() { });
         }

         private void btnSub_Click(object sender, RoutedEventArgs e)
         {
             var p = (sender as RadButton).DataContext as Person;
             pc.LstData.Remove(p);

         }

         private void btnSave_Click(object sender, RoutedEventArgs e)
         {
             foreach (var item in this.pc.LstData)
             {
  MessageBox.Show(string.Format( "Name:{0},Age:{1}", item.Name, item.Age));
             }
         }
     }

     public class PersonCollection 
     {
private ObservableCollection <Person> lstData =
 new ObservableCollection<Person>();

         public ObservableCollection <Person> LstData
         {
             get { return lstData; }
             set { lstData = value; }
         }
     }

     public class Person : INotifyPropertyChanged
     {

         public event PropertyChangedEventHandler PropertyChanged;

         private string _name =  "";

         public string Name
         {
             get { return _name; }
             set
             {
                 _name = value;
                 if (PropertyChanged != null)
                 {
                     PropertyChanged(this, new PropertyChangedEventArgs( "Name"));
                 }
             }
         }

         private int _age = 0;

         public int Age
         {
             get { return _age; }
             set
             {
                 _age = value;
                 if (PropertyChanged != null)
                 {
                     PropertyChanged(this, new PropertyChangedEventArgs( "Age"));
                 }
             }
         }


     }
}

　　代碼比較簡(jiǎn)短，就懶得寫(xiě)注釋了