技能点包括 WPf 样式的引用 数据的验证和绑定 比较适合初学者
前台:
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<Window.Resources>
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<local:PathToSource x:Key="n2"/>
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<Style x:Key="{x:Type ContextMenu}" TargetType="{x:Type ContextMenu}">
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<Setter Property="OverridesDefaultStyle" Value="True"/>
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<Setter Property="SnapsToDevicePixels" Value="True"/>
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<Setter Property="Template">
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<Setter.Value>
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<ControlTemplate TargetType="{x:Type ContextMenu}">
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<Border Background="#CD222120" CornerRadius="7, 7, 8, 8" BorderBrush="DarkGray" BorderThickness="2" Opacity="0.96">
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<StackPanel ClipToBounds="True" Orientation="Vertical" IsItemsHost="True" Margin="5,4,5,4"/>
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</Border>
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</ControlTemplate>
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</Setter.Value>
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</Setter>
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</Style>
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<ControlTemplate x:Key="{x:Static MenuItem.TopLevelItemTemplateKey}" TargetType="{x:Type MenuItem}">
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<Border Name="Border" >
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<Grid>
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<ContentPresenter Margin="6,3,6,3" ContentSource="Header" RecognizesAccessKey="True" />
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</Grid>
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</Border>
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</ControlTemplate>
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<DataTemplate x:Key="Wrapitem">
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<Grid Height="86" Width="86" >
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<Grid.ContextMenu>
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<ContextMenu Name="cm" StaysOpen="true">
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<MenuItem Header="update"/>
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<MenuItem Header="Save"/>
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<MenuItem Header="SaveAs"/>
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</ContextMenu>
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</Grid.ContextMenu>
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<Image Margin="8,8,8,24" Source="{Binding Path=Url,Converter={StaticResource n2}}"/>
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<Label Content="{Binding Path=Text}" Height="22" Width="45" VerticalAlignment="Bottom"/>
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</Grid>
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</DataTemplate>
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</Window.Resources>
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<Grid>
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<ListBox x:Name="list" Margin="124,63,109,44" ScrollViewer.HorizontalScrollBarVisibility="Hidden" ItemTemplate="{StaticResource Wrapitem}">
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<ListBox.Resources>
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<Style TargetType="ListBoxItem">
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<Style.Resources>
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<SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="#FFA1A1A1"/>
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</Style.Resources>
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</Style>
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</ListBox.Resources>
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<!--<ListBox.ItemsPanel >
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<ItemsPanelTemplate>
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<WrapPanel Orientation="Horizontal" IsItemsHost="True"/>
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</ItemsPanelTemplate>
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</ListBox.ItemsPanel>-->
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<ListBox.Template>
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<ControlTemplate TargetType="{x:Type ListBox}">
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<ScrollViewer HorizontalScrollBarVisibility="Disabled" VerticalScrollBarVisibility="Auto">
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<WrapPanel Orientation="Horizontal" IsItemsHost="True" ScrollViewer.CanContentScroll="True"/>
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</ScrollViewer>
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</ControlTemplate>
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</ListBox.Template>
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</ListBox>
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</Grid>
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</Window>
后台:
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/// <summary>
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/// MainWindow.xaml 的交互逻辑
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/// </summary>
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public partial class MainWindow : Window
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{
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public MainWindow()
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{
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InitializeComponent();
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load();
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}
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public void load()
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{
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ObservableCollection<Mean> ListMean = new ObservableCollection<Mean>()
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{
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new Mean(){Text="001",Url="i"},
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new Mean(){Text="002",Url="i"},
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new Mean(){Text="003",Url="ii"},
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new Mean(){Text="004",Url="i"},
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new Mean(){Text="005",Url="i"},
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new Mean(){Text="006",Url="ii"},
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new Mean(){Text="007",Url="i"},
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new Mean(){Text="008",Url="i"},
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new Mean(){Text="009",Url="i"},
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new Mean(){Text="010",Url="i"},
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new Mean(){Text="011",Url="ii"},
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new Mean(){Text="012",Url="i"},
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new Mean(){Text="013",Url="i"},
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new Mean(){Text="014",Url="i"},
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new Mean(){Text="015",Url="i"},
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new Mean(){Text="016",Url="i"},
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new Mean(){Text="017",Url="i"}
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};
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list.ItemsSource = ListMean;
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}
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}
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public class Mean : INotifyPropertyChanged
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{
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private string text;
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public string Text
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{
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get { return text; }
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set { text = value; OnPropertyChanged("Text"); }
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}
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private string url;
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public string Url
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{
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get { return url; }
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set { url = value; OnPropertyChanged("Url"); }
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}
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public event PropertyChangedEventHandler PropertyChanged;
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public void OnPropertyChanged(string propertyName)
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{
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if (PropertyChanged != null)
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{
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PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
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}
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}
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}
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public class PathToSource:IValueConverter
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{
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public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
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{
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string url = string.Format(@"/Images/{0}.jpg", (string)value=="i"?"i":"ii");
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return new BitmapImage(new Uri(url,UriKind.Relative));
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}
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public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
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{
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throw new NotImplementedException();
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}
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}