PDFOffice_Windows_exe/PDF Office/Views/EditTools/Background/BackgroundTemplateListFileContent.xaml

<UserControl x:Class="PDF_Master.Views.EditTools.Background.BackgroundTemplateListFileContent"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:prism="http://prismlibrary.com/"             
             prism:ViewModelLocator.AutoWireViewModel="True" 
             xmlns:data ="clr-namespace:PDFSettings;assembly=PDFSettings"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:background="clr-namespace:PDF_Master.ViewModels.EditTools.Background" d:DataContext="{d:DesignInstance Type=background:BackgroundTemplateListFileContentViewModel}"
             mc:Ignorable="d"
             d:DesignHeight="632"
             d:DesignWidth="260">
    <UserControl.Resources>
        <ContextMenu x:Key="FlyoutMenu" FontSize="14" >
            <ContextMenu.ItemContainerStyle>
                <Style TargetType="{x:Type MenuItem}">
                    <Setter Property="Padding" Value="0,8,0,8"/>
                    <Setter Property="VerticalContentAlignment" Value="Center"/>
                </Style>
            </ContextMenu.ItemContainerStyle>
            <MenuItem Name="MenuEdit" Header="编辑模板" Click="MenuEdit_Click" >
            </MenuItem>
            <MenuItem Name="MenuDeleteCurrent" Header="删除模板"  Click="MenuDeleteCurrent_Click">
            </MenuItem>
            <MenuItem Name="MenuDeleteAll" Header="删除全部" Click="MenuDeleteAll_Click"></MenuItem>
        </ContextMenu>
    </UserControl.Resources>

    <Grid Background="#F3F3F3">
        <ListBox
                                Width="240" 
                                BorderThickness="0"
                                ScrollViewer.CanContentScroll="True"
                                ScrollViewer.HorizontalScrollBarVisibility="Disabled"
                                ScrollViewer.VerticalScrollBarVisibility="Hidden"
                                VirtualizingPanel.IsVirtualizing="True"
                                VirtualizingPanel.VirtualizationMode="Standard"
                                VirtualizingPanel.CacheLengthUnit="Page"
                                VirtualizingPanel.CacheLength="1"
                                VirtualizingPanel.ScrollUnit="Pixel"   
                                Background="#F3F3F3"
                 ItemsSource="{Binding BackgroundModFileCollection}"  
            SelectionChanged="ListBox_SelectionChanged">

            <ListBox.ItemContainerStyle>
                <Style TargetType="ListBoxItem">
                    <Setter Property="Margin" Value="20"/>
                    <Setter Property="Padding" Value="0 0 0 0"/>
                    <Setter Property="Height" Value="160"/>
                    <Setter Property="Width" Value="128"/>
                    <Setter Property="ContextMenu" Value="{StaticResource FlyoutMenu}"/>
                    <Setter Property="Template" Value="{DynamicResource EditToolsItemControlTemplate}"/>
                </Style>
            </ListBox.ItemContainerStyle>
            <ListBox.ItemTemplate>
                <DataTemplate DataType="{x:Type data:BackgroundItem}">
                    <StackPanel Name="itemPanel" Loaded="itemPanel_Loaded">
                        <Border BorderThickness="1" BorderBrush="#A0A2AE">
                            <Grid Height="160" Width=" 128" >
                                <Image  Name="BackgroundPreview" Stretch="Fill" RenderOptions.BitmapScalingMode="HighQuality"/>
                                <CheckBox Name="IsSelectedCheckBox" Height="14" Width="14" HorizontalAlignment="Right" VerticalAlignment="Top" Panel.ZIndex="1" IsChecked="True" IsEnabled="False"/>
                                <Button Name="EditTemplateBtn" Height="43" Width="63" HorizontalAlignment="Left" VerticalAlignment="Bottom" Click="EditTemplateBtn_Click"></Button>
                                <Button Name="DeleteTemplateBtn"  Height="43" Width="63" HorizontalAlignment="Right" VerticalAlignment="Bottom" Click="DeleteTemplateBtn_Click">
                                </Button>
                            </Grid>
                        </Border>
                    </StackPanel>
                    <DataTemplate.Triggers>
                        <DataTrigger Binding="{Binding Path=IsSelected, RelativeSource={RelativeSource FindAncestor, AncestorType=ListBoxItem}}" Value="True">
                            <Setter TargetName="IsSelectedCheckBox" Property="Visibility" Value="Visible"/>
                        </DataTrigger>
                        <DataTrigger Binding="{Binding Path=IsSelected, RelativeSource={RelativeSource FindAncestor, AncestorType=ListBoxItem}}" Value="False">
                            <Setter TargetName="IsSelectedCheckBox" Property="Visibility" Value="Collapsed"/>
                        </DataTrigger>
                        <Trigger Property="IsMouseOver" Value="True">
                            <Setter TargetName="EditTemplateBtn" Property="Visibility" Value="Visible"/>
                            <Setter TargetName="DeleteTemplateBtn" Property="Visibility" Value="Visible"/>
                        </Trigger>
                        <Trigger Property="IsMouseOver" Value="False">
                            <Setter TargetName="EditTemplateBtn" Property="Visibility" Value="Collapsed"/>
                            <Setter TargetName="DeleteTemplateBtn" Property="Visibility" Value="Collapsed"/>
                        </Trigger>
                    </DataTemplate.Triggers>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>
        <Grid Width="140"  Margin="64,153,56,0" Visibility="{Binding CreateTemplateVisible, Mode=OneWay}">
            <StackPanel Orientation="Vertical">
                <Label Height="87" Width="87" HorizontalAlignment="Center" Background="BlueViolet"></Label>
                <TextBlock Height="24" FontSize="14" Text="请先创建一个背景模板" Margin="0,8,0,0" VerticalAlignment="Center" ></TextBlock>
                <Button Height="24" Width="44" Margin="0,12,0,0" Content ="新建" Command="{Binding AddTemplateCommand}"></Button>
            </StackPanel>
        </Grid>
    </Grid>
</UserControl>