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