Silverlight Telerik控件学习:GridView双向绑定

概述 Silverlight Telerik控件学习:GridView双向绑定 做过WinForm数据库开发的人，一定有类似经历：DataGrid绑定后，如果允许行编辑，数据一顿修改后，想批量保存修改后的结果，通常是将DataGrid的所有行遍历，用FindControl找出其中的TextBox之类的控件，取值，然后处理，如果行模板中的控件变化了，可能之前的处理代码又要修改... .Net发展到W  Silverlight Telerik控件学习:GridView双向绑定

做过WinForm数据库开发的人，一定有类似经历：DataGrID绑定后，如果允许行编辑，数据一顿修改后，想批量保存修改后的结果，通常是将DataGrID的所有行遍历，用FindControl找出其中的TextBox之类的控件，取值，然后处理，如果行模板中的控件变化了，可能之前的处理代码又要修改...

.Net发展到WPF/SL时代，有了双向绑定，这种痛苦经历已经一去不返了，我们只需要关注数据即可，GrIDVIEw与数据源之间会相互通知各自的变化情况，批量保存时，不管GrIDVIEw中的数据用户如何修改，也不用去理会行模板中的控件名是啥，直接对数据源进行处理即可。

Xaml示例：

+ View Code ?

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<UserControl xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"  x:Class="SLShortCut.MainPage"     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"     xmlns:mc="http://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="年龄">                     <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=" *** 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" 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" x:name="btnSave" Click="btnSave_Click">全部保存</telerik:Radbutton>     </StackPanel> </UserControl>

Xaml.cs部分 + View Code ?

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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 = "张三",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 @H_404_976@         {             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"));                 }             }         }         } }

代码比较简短，就懒得写注释了

作者： 菩提树下的杨过
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