WPF 用户控件 DataTemplate 数据模板绑定 Binding

ListBox 的列表绑定远远不能满足我们实际工作中的需求，出于对灵活性、复用性以及代码精简的考虑，需要保证循环列表中的单个元素是独立的元素片段，类似Web中的局部视图。 这时候，使用用户控件会好很多。

DataTemplate：FruitInfoDT.xaml

<UserControl x:Class="MyUILib.FruitInfoDT"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             mc:Ignorable="d" 
             d:DesignHeight="300" d:DesignWidth="300">
    <Grid>
        <Grid.Resources>
            <Style TargetType="{x:Type StackPanel}">
                <Style.Triggers>
                    <Trigger Property="IsMouseOver" Value="True">
                        <Setter Property="RenderTransform">
                            <Setter.Value>
                                <RotateTransform Angle="5"></RotateTransform>
                            </Setter.Value>
                        </Setter>
                        <Setter Property="Background" Value="#3B9CFB" />
                    </Trigger>
                </Style.Triggers>
            </Style>
        </Grid.Resources>

        <StackPanel Orientation="Vertical" Margin="10">
            <Image Source="{Binding Img}" Width="96" Height="96" />
            <TextBlock HorizontalAlignment="Center" Foreground="White" Text="{Binding Info}"/>
        </StackPanel>

    </Grid>
</UserControl>

XAML:

<Window.DataContext>
    <local:VMTempTest/>
</Window.DataContext>
<StackPanel Margin="10,0,0,50" Orientation="Vertical" >
    <TextBlock Text="用户控件模板列表" FontWeight="Bold"  Margin="0,5,0,5" ></TextBlock>
    <StackPanel HorizontalAlignment="Left"  >
        <ItemsControl ItemsSource="{Binding FiList}" HorizontalAlignment="Left" >
            <ItemsControl.ItemTemplate>
                <DataTemplate>
                    <local:FruitInfoDT />
                </DataTemplate>
            </ItemsControl.ItemTemplate>

            <!-- 面板显示模板 -->
            <ItemsControl.ItemsPanel>
                <ItemsPanelTemplate>
                    <WrapPanel Orientation="Horizontal">
                    </WrapPanel>
                </ItemsPanelTemplate>
            </ItemsControl.ItemsPanel>

        </ItemsControl>

    </StackPanel>
</StackPanel>

Models：

public class FruitInfoViewModel : ObservableObject
{
    private String img;
    /// <summary>
    /// 图片
    /// </summary>
    public String Img
    {
        get { return img; }
        set { img = value; RaisePropertyChanged(() => Img); }
    }


    private String info;
    /// <summary>
    /// 信息
    /// </summary>
    public String Info
    {
        get { return info; }
        set { info = value; RaisePropertyChanged(() => Info); }
    }
}

ViewModel：

public class VMTempTest : ViewModelBase
{
    public VMTempTest()
    {
        FiList = new ObservableCollection<FruitInfoViewModel>() {
             new FruitInfoViewModel{ Img = "/MyWpfApp;component/Images/1.jpg", Info= "樱桃"},
          new FruitInfoViewModel{ Img = "/MyWpfApp;component/Images/2.jpg", Info = "葡萄"}
        };
    }

    private ObservableCollection<FruitInfoViewModel> fiList;
    /// <summary>
    /// 用户控件模板列表
    /// </summary>
    public ObservableCollection<FruitInfoViewModel> FiList
    {
        get { return fiList; }
        set { fiList = value; RaisePropertyChanged(() => FiList); }
    }
}

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