Silverlight自定义依赖属性(实现RadGridView复选框全选)

概述数据绑定类的定义 说明：可以在类中输入propdp，按两下Tab键，自动带出依赖属性的代码,这是一个快捷键     public class FData2:DependencyObject    //注意要继承DependencyObject     {         //定义三个依赖属性         public static readonly DependencyProperty FSe

数据绑定类的定义

说明：可以在类中输入propdp，按两下Tab键，自动带出依赖属性的代码,这是一个快捷键

    public class FData2:DependencyObject    //注意要继承DependencyObject
    {
        //定义三个依赖属性
        public static Readonly DependencyProperty FSelectedProperty;
        public static Readonly DependencyProperty FItem2Property;
        public static Readonly DependencyProperty FItemProperty;

        static FData2()
        {
            //在构造函数中注册三个依赖属性
            //DependencyProperty.Register 参数说明,1:FSelected,暴露给外面的属性,2:typeof(bool)，属性的类型
            //                                    3:typeof(FData2),填写类名,4:new PropertyMetadata(false) 里面的false为属性初始化时的默认值
            FSelectedProperty =
            DependencyProperty.Register("FSelected",typeof(bool),typeof(FData2),new PropertyMetadata(false));
            FItemProperty =
            DependencyProperty.Register("FItem",typeof(string),new PropertyMetadata(""));
            FItem2Property =
                        DependencyProperty.Register("FItem2",new PropertyMetadata(""));
        }

        public bool FSelected
        {
            get { return (bool)GetValue(FSelectedProperty); }
            set { SetValue(FSelectedProperty,value); }
        }  

        public string FItem
        {
            get { return (string)GetValue(FItemProperty); }
            set { SetValue(FItemProperty,value); }
        }

        public string FItem2
        {
            get { return (string)GetValue(FItem2Property); }
            set { SetValue(FItem2Property,value); }
        }

    }
====================================================================================

        List<FData2> lst = null;
        public RadGrIDVIEw用数据绑定方式实现复选框全选全清()
        {
            InitializeComponent();
            lst = new List<FData2>(){
            new FData2{FSelected=false,FItem="内容1",FItem2="内容1-2"},
            new FData2{FSelected=false,FItem="内容2",FItem2="内容2-2"},FItem="内容3",FItem2="内容3-2"},FItem="内容4",FItem2="内容4-2"},FItem="内容5",FItem2="内容5-2"},FItem="内容6",FItem2="内容6-2"}};
            dgList.ItemsSource = lst;
        }

        private voID btnSelectAll_Click(object sender,RoutedEventArgs e)
        {
            SelCheckBox(true);
        }

        private voID btnClearall_Click(object sender,RoutedEventArgs e)
        {
            SelCheckBox(false);
        }

        private voID SelCheckBox(bool bSel)
        {
            for (int i = 0; i < lst.Count; i++)
            {
                lst[i].FSelected = bSel;              //由于定义了依赖属性，所以这里数据一改变，界面上的复选框也跟着改变，文本也一样
                if (bSel)
                {
                    lst[i].FItem = "选择";
                }
                else
                {
                    lst[i].FItem = "非选择";
                }
            }
        }

====================================================================================

    //复选框选择的的一个转换类
    public class SelDataConvert : System.windows.Data.IValueConverter
    {
        public object Convert(object value,Type targettype,object parameter,System.Globalization.CultureInfo culture)
        {
            bool bSel = (bool)value;
            return bSel;
        }

        public object ConvertBack(object value,System.Globalization.CultureInfo culture)
        {
            bool bSel = (bool)value;
            return bSel;
        }
    }

====================================================================================

关键代码

    <navigation:Page.Resources>
        <local:SelDataConvert x:Key="SelCTS" />
    </navigation:Page.Resources>
定义转换器资源

<CheckBox IsChecked="{Binding FSelected,Mode=TwoWay,Converter={StaticResource SelCTS}}"/>
使用双向绑定，使用SelCTS转换器

xaml代码

 

<navigation:Page x:Class="SilverlighTradGrIDVIEw复选框.RadGrIDVIEw用数据绑定方式实现复选框全选全清"
           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"
           xmlns:navigation="clr-namespace:System.windows.Controls;assembly=System.windows.Controls.Navigation"
           d:DesignWIDth="640" d:DesignHeight="480"
           title="RadGrIDVIEw用数据绑定方式实现复选框全选全清 Page" xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation" xmlns:local="clr-namespace:SilverlighTradGrIDVIEw复选框" xmlns:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk">
    <navigation:Page.Resources>
        <local:SelDataConvert x:Key="SelCTS" />
    </navigation:Page.Resources>
    <GrID x:name="LayoutRoot" WIDth="600" Height="460" VerticalAlignment="Center" HorizontalAlignment="Center">
        <telerik:RadGrIDVIEw Height="285" HorizontalAlignment="left" margin="36,50,0" name="dgList" VerticalAlignment="top" WIDth="552" RowIndicatorVisibility="Collapsed" ShowGroupPanel="False" autoGenerateColumns="False" >
            <telerik:RadGrIDVIEw.Columns>
                <telerik:GrIDVIEwColumn header="复选" WIDth="100" headerTextAlignment="Center">
                    <telerik:GrIDVIEwColumn.CellTemplate>                         <DataTemplate>                             <StackPanel>                                 <CheckBox IsChecked="{Binding FSelected,Converter={StaticResource SelCTS}}"/>                             </StackPanel>                         </DataTemplate>                     </telerik:GrIDVIEwColumn.CellTemplate>                 </telerik:GrIDVIEwColumn>                 <telerik:GrIDVIEwColumn header="内容1" WIDth="100" headerTextAlignment="Center">                     <telerik:GrIDVIEwColumn.CellTemplate>                         <DataTemplate>                             <StackPanel>                                 <TextBlock VerticalAlignment="Center" HorizontalAlignment="Center" Text="{Binding FItem,Mode=TwoWay}"/>                             </StackPanel>                         </DataTemplate>                     </telerik:GrIDVIEwColumn.CellTemplate>                 </telerik:GrIDVIEwColumn>                 <telerik:GrIDVIEwColumn header="内容2" WIDth="100" headerTextAlignment="Center">                     <telerik:GrIDVIEwColumn.CellTemplate>                         <DataTemplate>                             <StackPanel>                                 <TextBlock VerticalAlignment="Center" HorizontalAlignment="Center" Text="{Binding FItem2,Mode=TwoWay}"/>                             </StackPanel>                         </DataTemplate>                     </telerik:GrIDVIEwColumn.CellTemplate>                 </telerik:GrIDVIEwColumn>             </telerik:RadGrIDVIEw.Columns>         </telerik:RadGrIDVIEw>         <button Content="全选" Height="31" HorizontalAlignment="left" margin="38,350,0" name="btnSelectAll" VerticalAlignment="top" WIDth="76" Click="btnSelectAll_Click" />         <button Content="全清" Height="31" HorizontalAlignment="left" margin="120,0" name="btnClearall" VerticalAlignment="top" WIDth="76" Click="btnClearall_Click" />         <button Content="获取行的值" Height="31" HorizontalAlignment="left" margin="494,0" name="btnGetItem" VerticalAlignment="top" WIDth="94" Click="btnGetItem_Click" />         <sdk:Label Height="22" HorizontalAlignment="left" margin="39,7,0" name="label1" VerticalAlignment="top" WIDth="128" Content="使用绑定方式" />     </GrID> </navigation:Page>

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